Data as of Nov 7, 2026
203.196.96.0/20
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@ |
| └ 203.196.97.0/24 | 256 | AP-Hosting | AT&T Managed Firewall Network Based - Sydney | ALLOCATED NON-PORTABLE | — | peering@ |
| └ 203.196.97.0/25 | 128 | AP-Hosting | AT&T Managed Firewall Network Based - Sydney | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.196.97.128/32 | 1 | AP-Hosting | AT&T Managed Firewall Network Based - Sydney | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.196.97.129/32 | 1 | CN-APHOSTING--NET | network for UNDERWRITERS LABORATORIES CN web browsing services | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.196.97.130/32 | 1 | JP-APHOSTING--NET | network for UNDERWRITERS LABORATORIES CN web browsing services | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.196.97.131/32 | 1 | AP-Hosting | AT&T Managed Firewall Network Based - Sydney | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.196.97.132/32 | 1 | BD-APHOSTING--NET | network for UNDERWRITERS LABORATORIES CN web browsing services | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.196.97.133/32 | 1 | HK-APHOSTING--NET | network for UNDERWRITERS LABORATORIES CN web browsing services | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.196.97.134/32 | 1 | IN-APHOSTING--NET | network for UNDERWRITERS LABORATORIES IN web browsing services | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.196.97.135/32 | 1 | ID-APHOSTING--NET | network for UNDERWRITERS LABORATORIES ID web browsing services | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.196.97.136/32 | 1 | KR-APHOSTING--NET | network for UNDERWRITERS LABORATORIES KR web browsing services | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.196.97.137/32 | 1 | AP-Hosting | AT&T Managed Firewall Network Based - Sydney | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.196.97.138/32 | 1 | NZ-APHOSTING--NET | network for UNDERWRITERS LABORATORIES NZ web browsing services | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.196.97.139/32 | 1 | AP-Hosting | AT&T Managed Firewall Network Based - Sydney | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.196.97.140/32 | 1 | PH-APHOSTING--NET | network for UNDERWRITERS LABORATORIES PH web browsing services | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.196.97.141/32 | 1 | SG-APHOSTING--NET | network for UNDERWRITERS LABORATORIES SG web browsing services | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.196.97.142/32 | 1 | TW-APHOSTING--NET | network for UNDERWRITERS LABORATORIES TW web browsing services | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.196.97.143/32 | 1 | TH-APHOSTING--NET | network for UNDERWRITERS LABORATORIES TH web browsing services | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.196.97.144/32 | 1 | TR-APHOSTING--NET | network for UNDERWRITERS LABORATORIES TR web browsing services | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.196.97.145/32 | 1 | AP-Hosting | AT&T Managed Firewall Network Based - Sydney | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.196.97.146/32 | 1 | AP-Hosting | AT&T Managed Firewall Network Based - Sydney | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.196.97.147/32 | 1 | AP-Hosting | AT&T Managed Firewall Network Based - Sydney | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.196.97.148/30 | 4 | AP-Hosting | AT&T Managed Firewall Network Based - Sydney | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.196.97.152/29 | 8 | AP-Hosting | AT&T Managed Firewall Network Based - Sydney | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.196.97.160/27 | 32 | AP-Hosting | AT&T Managed Firewall Network Based - Sydney | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.196.97.192/26 | 64 | AP-Hosting | AT&T Managed Firewall Network Based - Sydney | ASSIGNED NON-PORTABLE | — | peering@ |
| └ 203.196.99.0/24 | 256 | AP-Hosting | AT&T Hosting Network Operation Center Singapore | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.196.101.0/24 | 256 | LIG | AT&T | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.196.102.0/24 | 256 | NZINTFIR | Caltex Towers | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.196.103.0/24 | 256 | HKINTUAT | unknown | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.196.104.0/24 | 256 | JPINTFSG | Massachusetts Financial Services | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.196.106.0/24 | 256 | JPINTING | VeriSign, Inc. | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.196.107.0/24 | 256 | JPINTING | unknown | ASSIGNED NON-PORTABLE | — | peering@ via ATT-OPENNET-AP |
| └ 203.196.110.0/24 | 256 | SGINTKNE | Advanced Management Consulting Ltd | 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 | 3,584 | 88% | 3 | |
| Business | 256 | 6.3% | 25 | |
| Hosting | 256 | 6.3% | 1 |
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 · 21 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 |
|---|---|---|---|---|---|
| 203.196.96.0/23 | AS2687 | RADB | Proxy route object registered by AS2764 | MAINT-AS2764 | Nov 13, 2023 |
| 203.196.97.0/24 | AS2687 | RADB | Proxy-registered route object | MAINT-AS3491 | Mar 28, 2025 |
| 203.196.99.0/24 | AS2687 | RADB | Proxy-registered route object | MAINT-AS3491 | Mar 28, 2025 |
| 203.196.100.0/24 | AS2687 | RADB | Proxy-registered route object | MAINT-AS3491 | Mar 28, 2025 |
| 203.196.101.0/24 | AS2687 | RADB | Proxy-registered route object | MAINT-AS3491 | Mar 28, 2025 |
| 203.196.103.0/24 | AS2687 | RADB | Proxy-registered route object | MAINT-AS3491 | Mar 28, 2025 |
| 203.196.105.0/24 | AS2687 | RADB | Proxy-registered route object | MAINT-AS3491 | Mar 28, 2025 |
| 203.196.108.0/23 | AS2687 | RADB | Proxy-registered route object | MAINT-AS3491 | Mar 28, 2025 |
| 203.196.111.0/24 | AS2687 | RADB | Proxy-registered route object | MAINT-AS3491 | Mar 28, 2025 |
Whois
Registration for this announcement
- Range
- 203.
196. 96. 0/ 19 - 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
- Dec 21, 2004
- Status
- assigned
Report abuse
Abuse contact
- peering@
intl. att. com - Name
- ABUSE ATTOPENNETAP
- Handle
- AA1420-AP