Data as of Nov 8, 2026
203.196.112.0/20
No anonymizer space · no proxy exits in 30 daysAT&T Enterprises, LLC · space held by AT&T Japan K.K.
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 |
|---|---|---|---|---|---|---|
| 203.196.96.0/19 | 8,192 | ATT-OPENNET-AP | AT&T Japan K.K. (ORG-AJK1-AP) · JP | ALLOCATED PORTABLE | — | peering@ |
| └ 203.196.112.0/20 | 4,096 | ATT-OPENNET-AP | AT&T Japan K.K. (ORG-AJK1-AP) · JP | ALLOCATED PORTABLE | — | peering@ |
| └ 203.196.112.64/28 | 16 | AUINTWAS | Precision Castparts Corporation | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.196.112.96/28 | 16 | AU-hosting | Notts Retail Park, Nottingham | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.196.112.112/28 | 16 | AU-hosting | Bligh Street, Australia | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.196.112.128/28 | 16 | AUINTSIF | unknown | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.196.112.144/28 | 16 | AUINTBAO | unknown | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.196.112.160/28 | 16 | AUINTBRO | unknown | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.196.112.176/28 | 16 | AUINTBIE | unknown | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.196.112.208/28 | 16 | SGINTAMD | AMD International Pte Ltd | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.196.112.224/28 | 16 | FirstNZCapital | Caltex Towers | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.196.112.240/28 | 16 | AP-Hosting | 8515 E Anderson Scottsdale - AZ | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.196.115.0/28 | 16 | SG-AIRPRODUCTS-NET | Network of Air Products (Singapore IDC) | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.196.115.16/29 | 8 | SG-AIRPRODUCTS-NET | Network of Air Products (Singapore IDC) | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.196.115.128/28 | 16 | SGINTDCH | The Dow Chemical Company | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.196.115.144/28 | 16 | SG-hosting | 2801 Buford HWY, Atlanta | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.196.115.176/28 | 16 | SGINTI2T | i2 Technologies | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.196.115.192/28 | 16 | AP-Hosting | unknown | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.196.115.240/28 | 16 | AP-Hosting | AT&T Hosting Network Operation Center Singapore | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.196.117.32/27 | 32 | PHINTGXS | Global Exchange Services | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.196.117.64/27 | 32 | PHINTGES | RCBC Plaza Ayala AVE. COR. SEN. G. Puyat AVE. | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.196.120.128/28 | 16 | AP-Hosting | Harcourt House | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.196.120.144/29 | 8 | AP-Hosting | Harcourt House | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.196.120.152/29 | 8 | AP-Hosting | AT&T Internal - MFS Network Based | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.196.120.160/28 | 16 | HKINTLNV | Taikoo Place | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.196.120.176/29 | 8 | HKINTRIV | River Hills Wilsons, Inc | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.196.120.184/32 | 1 | HKINTRQB | Marriott International , Inc | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.196.120.223/32 | 1 | HKINTSLE | Sara Lee | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.196.120.224/27 | 32 | HKINTNCC | NCR | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.196.122.0/24 | 256 | AP-Hosting | OMG | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.196.125.0/24 | 256 | HKINTSCA | Standard Chartered Bank | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.196.126.8/30 | 4 | PHINTDEV | analog devices | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.196.127.0/24 | 256 | HKINTMOG | Hong Kong Monitor Group | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
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
4,096 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Internet provider | 3,418 | 83% | 13 | |
| Business | 422 | 10% | 28 | |
| Hosting | 256 | 6.3% | 1 |
Network & registry
Registry
Holder
- Organization
- AT&T Japan K.K.
- Handle
- ORG-AJK1-AP
- Range
- 203.
196. 96. 0/ 19 - Registration type
- ALLOCATED PORTABLE
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 | Proxy-registered route object | MAINT-AS3491 | Mar 28, 2025 |
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 203.196.112.0/24 | AS2687 | RADB | Proxy route object registered by AS2764 | MAINT-AS2764 | Nov 13, 2023 |
| 203.196.119.0/24 | AS2687 | RADB | Proxy route object registered by AS2764 | MAINT-AS2764 | Nov 13, 2023 |
| 203.196.126.0/24 | AS2687 | RADB | To allow routing to other ISPs | MAINT-AS7132 | Feb 14, 2025 |
Whois
Registration for this announcement
- Range
- 203.
196. 112. 0/ 20 - 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
- Oct 8, 2003
- Status
- assigned
Report abuse
Abuse contact
- peering@
intl. att. com - Name
- ABUSE ATTOPENNETAP
- Handle
- AA1420-AP