Data as of Nov 9, 2026
203.163.64.0/18
No anonymizer space · no proxy exits in 30 daysAT&T Enterprises, LLC · space held by AT&T Japan K.K.
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | RPKI |
|---|---|---|---|
| 203.163.94.0/24 | AS134534 | Business |
Registrations in this block
The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 203.163.64.0/18 | 16,384 | ATT-OPENNET-AP | AT&T Japan K.K. (ORG-AJK1-AP) · JP | ALLOCATED PORTABLE | — | peering@ |
| └ 203.163.64.0/22 | 1,024 | ATT_ | ATT Countryalloc AU | ALLOCATED NON-PORTABLE | — | peering@ |
| └ 203.163.65.16/28 | 16 | AUINTLBA | Bain & Co. | ASSIGNED NON-PORTABLE | — | peering@ via ATT_COUNTRYALLOC_AU |
| └ 203.163.65.32/28 | 16 | AU-GIDC-NET | Network of GIDC Sydney | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.65.48/29 | 8 | AP-Hosting | Arsenal Digital, AUS | ASSIGNED NON-PORTABLE | — | peering@ via ATT_COUNTRYALLOC_AU |
| └ 203.163.65.64/27 | 32 | AUINTCUW | Compuware Asia Pac PL | ASSIGNED NON-PORTABLE | — | peering@ via ATT_COUNTRYALLOC_AU |
| └ 203.163.65.104/29 | 8 | AUINTNHR | Nighthawk Radiology Holdings, Inc. | ASSIGNED NON-PORTABLE | — | peering@ via ATT_COUNTRYALLOC_AU |
| └ 203.163.65.112/28 | 16 | AUINTEXM | Lexmark International (Australia) Pty Ltd | ASSIGNED NON-PORTABLE | — | peering@ via ATT_COUNTRYALLOC_AU |
| └ 203.163.65.192/26 | 64 | AUINTMFW | Moldflow | ASSIGNED NON-PORTABLE | — | peering@ via ATT_COUNTRYALLOC_AU |
| └ 203.163.67.32/29 | 8 | AU-GIDC-NET | Network of GIDC Sydney | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.67.40/29 | 8 | AUINTBIA | MBIA Insurance Australia | ASSIGNED NON-PORTABLE | — | peering@ via ATT_COUNTRYALLOC_AU |
| └ 203.163.67.216/29 | 8 | AU-ARNOTTS-NET | Network of ARNOTTS | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.67.224/29 | 8 | AU-ARNOTTS-NET | Network of ARNOTTS | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.67.248/29 | 8 | LKINTCRT | unknown | ASSIGNED NON-PORTABLE | — | peering@ via ATT_COUNTRYALLOC_AU |
| └ 203.163.68.8/30 | 4 | NZINTNZ | network of IBM-NZ | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.68.24/29 | 8 | NZINTDIY | unknown | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.68.32/29 | 8 | NZINTKOH | Kohler Asia Pacific Limited | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.68.40/29 | 8 | NZINTDEE | unknown | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.68.64/27 | 32 | NZINTQUV | unknown | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.68.96/27 | 32 | NZINTPK1 | Network of Fisher & Paykel | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.68.128/30 | 4 | NZINTDPS | Direct Payment Solutions | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.68.132/30 | 4 | NZINTFXN | FX Networks Limited | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.68.152/29 | 8 | NZINTPK1 | Fisher & Paykel | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.68.224/29 | 8 | NZINTAPR | Associated Press | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.70.64/27 | 32 | NZINTNAV | Navman NZ Ltd | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.70.96/27 | 32 | NZINTNOV | 39 Market Place | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.71.0/28 | 16 | NZINTSUL | SULKEM | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.71.16/28 | 16 | NZINTVLX | VeluxNew Zealand Ltd | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.71.32/28 | 16 | NZINTPOC | Pocket Solutions | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.71.48/28 | 16 | NZINTATT | AT&T Global Network Services | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.71.64/28 | 16 | NZINTABC | abc123 IT | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.71.128/28 | 16 | NZINTATT | Agns NZ | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.71.176/28 | 16 | NZINTHRZ | Hertz New Zealand Ltd | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.71.192/28 | 16 | NZINTINZ | IBM New Zealand | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.71.208/28 | 16 | NZINTINZ | IBM New Zealand | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.71.240/28 | 16 | NZINTATT | Datacom | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.72.0/24 | 256 | TWINTENW | Enterasys Networks Taiwan Co. Ltd | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.73.0/28 | 16 | SGINTDEK | DEK Asia Pacific (Pte) Limit | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.73.16/28 | 16 | JPINTPFK | 2-1-2 Hirakawa-CHO, Chiyoda-KU | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.73.48/29 | 8 | SGINTMTL | Applied Materials, Inc. | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.73.144/28 | 16 | SGINTACE | Air Product and Chemical Industries | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.73.168/29 | 8 | AP-Hosting | AT&T Managed Firewall Network Based - Sydney | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.78.16/29 | 8 | MYINTDIY | 1 Jalan SS21/58 | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.78.32/30 | 4 | MYINTCEXGMS | TEST Cust Expansion | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.78.36/30 | 4 | MYINTCEX | Network of TEST Cust Expansion | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.78.40/29 | 8 | MYINTCSY | CSG Systems, Inc | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.78.48/29 | 8 | MYINTCSY | 11, JALAN PINANG, Kuala Lumpur, Malaysia | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.78.56/29 | 8 | AP-Hosting | FMC Corporation | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.78.64/29 | 8 | MYINTTHK | Think Products | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.78.72/29 | 8 | MYINTSPX | SPX Cooling Technologies(Malaysia) Sdn Bhd | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.80.64/26 | 64 | SGINTATT | AT&T Singapore | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.80.192/26 | 64 | SG-Hosting | 85 Science Park Drive, The Cavendish #02/01 | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.82.32/27 | 32 | AP-Hosting | Christian Dior Far East Limited | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.82.96/27 | 32 | HKINTSCG | Standard Chartered Bank | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.83.0/28 | 16 | TWINTOPT | Optical Communication Products, Inc | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.83.192/28 | 16 | AP-Hosting | Inttra Inc | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.83.208/28 | 16 | TWINTSEZ | unknown | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.90.0/25 | 128 | TWINTATT | Tatt TW IBM Taiwan | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.95.24/29 | 8 | ININTEST | Test Emeagmis Inc. | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.95.40/29 | 8 | AUINTVIG | Vignette Corporation | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.96.16/29 | 8 | AP-Hosting | Melaleuca Shanghai Wellness Products Company | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.96.64/28 | 16 | HKINTRAG | Red&Green - TDK AGNS Denmark | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.96.96/29 | 8 | AP-Hosting | Respironics | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.96.104/29 | 8 | AP-Hosting | TPG Capital LP | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.96.112/28 | 16 | HKINTNOV | Noveon Inc | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.97.16/28 | 16 | AP-Hosting | UPM-Kymmene Oyj | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.97.32/28 | 16 | SG-CONTINENTAL-NET | Netwrork of CONTINENTAL AG | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.97.48/28 | 16 | SG-CONTINENTAL-NET | Network of CONTINENTAL AG | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.97.64/28 | 16 | SG-ETC-NET | Network of Esterline Technologies Corporation | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.97.80/29 | 8 | SG-IBM-NET | Network of IBM Singapore Pte. Ltd. | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.97.88/29 | 8 | SG-IBM-NET | Network of IBM Singapore Pte. Ltd. | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.97.96/29 | 8 | SG-HP-NET | Network of HP Inc. | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.97.112/28 | 16 | SG-UTC-NET | Network of United Technologies Corporation | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.97.128/28 | 16 | SG-UTC-NET | Network of United Technologies Corporation | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.97.160/29 | 8 | SG-INFOSYS-NET | Network of Infosys Limited | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.97.192/26 | 64 | SG-DANONE-NET | Network of DANONE S.A | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.99.144/28 | 16 | AUINTHOP | Holmen Paper AB | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.99.160/28 | 16 | AP-Hosting | FMC Corporation | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.99.176/28 | 16 | AP-Hosting | 9 Temasek BLVD 28-07 SUNTEC TWR 2 | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.99.192/28 | 16 | AP-Hosting | 9 Temasek BLVD 28-07 SUNTEC TWR 2 | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.99.224/28 | 16 | AP-Hosting | unknown | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.100.0/26 | 64 | KRINTEMF | Moldflow | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.101.96/27 | 32 | AP-Hosting | AT&T Hosting Network Operation Center Singapore | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.101.160/27 | 32 | SGINTTUI | JSI Shipping | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.101.192/28 | 16 | AP-Hosting | GEA IT Services GmbH | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.101.208/28 | 16 | AP-Hosting | GEA IT Services GmbH | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.101.248/29 | 8 | SGINTCITA | CIT Group INC | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.102.16/28 | 16 | HKINTNSC | National SemiConductor Corporation | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.102.48/28 | 16 | HKINTGES | GXS ECXPress (HK) Ltd | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.102.240/28 | 16 | AP-Hosting | Alpharma | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.103.0/26 | 64 | AP-Hosting | ONE PICKERING STREET #07-03 GREAT EASTERN CENTRE,Hong Kong | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.103.64/29 | 8 | AP-Hosting | The Mosaic Company | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.103.72/29 | 8 | AP-Hosting | Autoliv AB | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.103.88/29 | 8 | AP-Hosting | AT&T ICDS Node - Singapore | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.103.96/28 | 16 | AP-Hosting | FMC Corporation (Singapore) | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.103.112/29 | 8 | AP-Hosting | FMC Corporation (Singapore) | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.104.24/29 | 8 | KRINTHUN | Huntsman Polyurethan Korea | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.104.64/29 | 8 | KRINTI2T | i2 Technologies | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.104.72/29 | 8 | AP-Hosting | RR Donneley | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.104.136/29 | 8 | AP-Hosting | Texas Instrument | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.104.152/29 | 8 | AP-Hosting | Publishers Representatives Limited | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.104.160/29 | 8 | AP-Hosting | Publishers Representatives Limited | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.104.200/29 | 8 | KRINTIBL | unknown | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.104.208/29 | 8 | KRINTIBL | unknown | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.105.96/28 | 16 | MYINTIMY | Menara IGB, MID Valley, Lingkaran Syed Putra | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.105.112/28 | 16 | MYINTSRL | Kompleks Penchaia | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.105.224/28 | 16 | HKINTBOW | Bowne | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.106.0/28 | 16 | SGINTBNC | Bain & Company SE Asia, Inc | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.106.16/28 | 16 | AP-Hosting | Imerys | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.106.32/28 | 16 | SGINTHWL | Hellman Worldwide Logistics Pte Ltd | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.106.48/29 | 8 | SGINTAPI | The Capital Group Companies, Inc. | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.106.96/29 | 8 | AP-Hosting | OMG | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.106.104/29 | 8 | AP-Hosting | Vegasoul Capital Management Co Ltd | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.106.112/28 | 16 | AP-Hosting | Vegasoul Capital Management Co Ltd | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.106.128/25 | 128 | SGINTIDG | Integrated Device Technology, Inc. | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.107.64/26 | 64 | AP-Hosting | RR Donneley | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.111.192/27 | 32 | SGINTAAT | AT&T Singapore Pte Ltd | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.111.224/28 | 16 | AP-Hosting | The Mosaic Company | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.111.248/29 | 8 | AP-Hosting | NAFSC - 0004 Patrick J. Corey | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.112.0/29 | 8 | SGINTIBM | IBM Singapore Ptd Ltd | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.112.8/29 | 8 | SGINTREU | Red Bull Singapore Pte Ltd | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.112.24/29 | 8 | SGINTGCE | GEAC computers | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.112.32/29 | 8 | SG-hosting | 2801 Buford HWY, Atlanta | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.112.48/29 | 8 | SGINTADI | Analog Devices Inc | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.112.80/29 | 8 | AP-Hosting | UPM-Kymmene Oyj | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.112.144/29 | 8 | AP-Hosting | Robert Half, International, Inc. | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.112.176/29 | 8 | SG-hosting | unknown | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.112.184/29 | 8 | SGINTLSA | 1 KIM Seng Promenade #16-01, Great World City East | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.112.200/29 | 8 | SGINTCOG | Cognex | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.112.208/29 | 8 | SGINTTRP | unknown | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.112.224/29 | 8 | AP-Hosting | Arsenal Digital, Singapore | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.112.240/29 | 8 | SGINTITR | unknown | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.112.248/29 | 8 | AP-Hosting | Avanade Asia Pte Ltd | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.117.0/29 | 8 | HKINTHTS | Huntsman | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.117.16/29 | 8 | HKINTCTI | CTI Financial | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.117.24/29 | 8 | HK-GIBSON-NET | Network of Gibson Dunn & Crutcher | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.117.88/29 | 8 | AP-Hosting | Christian Dior Far East Limited | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.117.136/29 | 8 | AP-Hosting | Samsonite Corporation | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.117.144/28 | 16 | AP-Hosting | 2702 Riverside Drive, Windsor, Ontario, N8Y4S5 | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.117.160/28 | 16 | AP-Hosting | Melaleuca Shanghai Wellness Products Company | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.117.192/29 | 8 | APHosting | unknown | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203. | 9 | AP-Hosting | Allied Domecq | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.117.208/29 | 8 | AP-Hosting | 2702 Riverside Drive, Windsor, Ontario, N8Y4S5 | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.118.0/26 | 64 | PHINTAPA | Associated Press | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.121.0/29 | 8 | MY-APC-NET | Network of Air Products and Chemicals, Inc.. | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.121.8/29 | 8 | MY-APC-NET | Network of Air Products and Chemicals, Inc.. | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.121.16/29 | 8 | MY-AIRPRODUCTS-NET | Network of Air Products and Chemicals, Inc.. | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.121.48/29 | 8 | MY-KGSI-NET | Network of Kerry Group Services International Ltd | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.121.72/29 | 8 | MY-ELC-NET | Network of Eli Lilly & Company | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.121.88/29 | 8 | MY-SPEI-NET | Network of SONY PICTURES ENTERTAINMENT, INC. | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.121.96/29 | 8 | MY-SPEI-NET | Network of SONY PICTURES ENTERTAINMENT, INC. | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.121.104/30 | 4 | MY-TFSI-NET | Network of Thermo Fisher Scientific Inc. | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.121.108/30 | 4 | MY-TFSI-NET | Network of Thermo Fisher Scientific, Inc.. | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.121.112/29 | 8 | MY-ELC-NET | Network of Eli Lilly and Company | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.121.120/29 | 8 | MY-ELC-NET | Network of Eli Lilly and Company | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.121.136/29 | 8 | MY-TTECH-NET | Network of TTEC HOLDINGS INC | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.121.152/29 | 8 | MY-CUMMINS-NET | Network of Cummins INC.. | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.121.160/29 | 8 | MY-CUMMINS-NET | Network of Cummins INC.. | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.121.176/29 | 8 | MY-CUMMINS-NET | Network of Cummins INC.. | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.121.184/29 | 8 | MY-CUMMINS-NET | Network of Cummins INC.. | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.121.192/29 | 8 | MY-IBMMALAYSIA-NET | Network of IBM Malaysia Sdn Bhd. | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.121.200/29 | 8 | MY-IBMMALAYSIA-NET | Network of IBM Malaysia Sdn Bhd. | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.121.208/29 | 8 | MY-CUMMINS-NET | Network of Cummins INC. | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.121.216/29 | 8 | MY-SIEMENS-NET | Network of SIEMENS ENERGY GLOBAL GMBH & CO. KG | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.121.224/29 | 8 | MY-SIEMENS-NET | Network of SIEMENS ENERGY GLOBAL GMBH & CO. KG | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.121.232/29 | 8 | MY-GOOGLE-NET | Network of Google LLC | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.122.4/32 | 1 | AUINTUBM | IBM Australia | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.122.5/32 | 1 | AUINTUBM | IBM Australia | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.122.131/32 | 1 | TWINTFNN | Finnair | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.122.132/32 | 1 | SGINTPPN | Singapore Panalpina World Transport (S) Pte Ltd | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.122.134/32 | 1 | HKINTKAR | Arrow Electronics | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.122.135/32 | 1 | AUINTBRO | unknown | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.123.32/28 | 16 | JPINT1SY | Institutional Shareholder Services, Inc. | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.123.80/28 | 16 | JPINTAPI | 568 AZA Yamanokami, Ooaza Takami, Ogawa-Machi, HIK | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.123.96/28 | 16 | JPINTAPI | 568 AZA Yamanokami, Ooaza Takami, Ogawa-Machi, HIK | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.123.120/30 | 4 | JPINTGRG | Mentor Graphics Corp | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.123.144/28 | 16 | JPINTGCH | AT&T GSPM | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.123.160/28 | 16 | JPINTFSG | Massachusetts Financial Services | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.123.192/28 | 16 | AP-Hosting | Skadden, Arps, Slate, Meagher & Flom L.L.P. | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.123.208/29 | 8 | AP-Hosting | Skadden, Arps, Slate, Meagher & Flom L.L.P. | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.124.0/27 | 32 | JP-HP-NET | Network of HP Inc. | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.124.32/27 | 32 | AP-Hosting | UpToDate | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.124.72/29 | 8 | JP-BSC-NET | Network of Boston Scientific Corp | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.124.80/29 | 8 | JP-HP-NET | Network of HP Inc. | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.124.96/27 | 32 | JP-RBPT-NET | Network of Syntegon Technology GmbH (former Robert Bosch Packaging Technology GmbH) | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.124.136/29 | 8 | JP-NSKLTD-NET | Network of NSK Ltd. | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.124.144/29 | 8 | JP-IP25018267-NET | Network of IP25018267 | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.124.160/29 | 8 | JP-AUTODESK-NET | Network of Autodesk Ltd. Japan | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.124.168/29 | 8 | JP-AUTODESK-NET | Network of Autodesk Ltd. Japan | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.124.176/29 | 8 | JP-JJSERV-NET | Network of JOHNSON & JOHNSON SERVICES, INC | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.124.184/30 | 4 | JP-DAICEL-NET | Network of DAICEL CORPORATION | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.124.188/30 | 4 | JP-DAICEL-NET | Network of DAICEL CORPORATION | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.124.192/27 | 32 | JP-ELC-NET | Network of ELC Beauty LLC | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.124.224/27 | 32 | JP-ELC-NET | Network of ELC Beauty LLC | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.125.0/29 | 8 | AP-Hosting | UpToDate | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.163.125.8/30 | 4 | JP-BDC-NET | Network of BECTON DICKINSON AND COMPANY | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.125.12/30 | 4 | JP-BDC-NET | Network of BECTON DICKINSON AND COMPANY | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.125.16/29 | 8 | JP-HP-NET | Network of HP Inc. | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.125.24/29 | 8 | JP-HP-NET | Network of HP Inc. | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.125.32/29 | 8 | JP-ELCB-NET | Network of ELC Beauty LLC | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.163.125.44/30 | 4 | JP-MERCK-NET | Network of MERCK & CO INC. | ASSIGNED NON-PORTABLE | — | peering@ |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
16,384 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Internet provider | 12,915 | 79% | 105 | |
| Business | 3,469 | 21% | 228 |
Network & registry
Origin network
AS2687
US
- Name
- AT&T Enterprises, LLC
- Type
- Internet provider
- Registered
- Jun 2, 1993
- Domain
- att.com
- Website
- www.att.com
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2005 · 22 yr
- Origin networks
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS2687 | RADB | PACNET (proxy-registered route object) | MAINT-AS4637 | Nov 13, 2023 |
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 203.163.64.0/22 | AS2687 | RADB | Proxy route object registered by AS2764 | MAINT-AS2764 | Nov 13, 2023 |
| 203.163.68.0/24 | AS2687 | RADB | Proxy route object registered by AS2764 | MAINT-AS2764 | Nov 13, 2023 |
| 203.163.71.0/24 | AS2687 | RADB | Proxy route object registered by AS2764 | MAINT-AS2764 | Nov 13, 2023 |
| 203.163.90.0/24 | AS2687 | RADB | Proxy-registered route object | MAINT-AS3491 | Mar 28, 2025 |
| 203.163.98.0/24 | AS2687 | RADB | Proxy route object registered by AS2764 | MAINT-AS2764 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 203.
163. 64. 0/ 18 - Netname
- ATT-OPENNET-AP
- Registrant
- AT&T Japan K.K.
- Registrant country
- JP
- Organization
- Not stated by the registry
- Type
- ALLOCATED PORTABLE
- Created
- Not stated by the registry
- Updated
- Jul 7, 2020
- Maintainer
- APNIC-HM
- RIR
- APNIC
- Country
- JP
- Delegated
- Nov 17, 1999
- Status
- assigned
Report abuse
Abuse contact
- peering@
intl. att. com - Name
- ABUSE ATTOPENNETAP
- Handle
- AA1420-AP