Data as of Nov 7, 2026
203.196.96.0/23
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 this block, widest first, each 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@ |
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
512 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Business | 256 | 50% | 25 | |
| Internet provider | 256 | 50% | 1 |
Network & registry
Announced by
Covering announcement 203.196.96.0/20
- Prefix
- 203.196.96.0/20
- Announced by
- AS2687 AT&T Enterprises, LLC
- Type
- Internet provider
- RPKI
- No RPKI
- Netname
- ATT-OPENNET-AP
- Registrant
- AT&T Japan K.K.
- RIR
- APNIC
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 203.196.96.0/20
203.196.96.0/20
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2005 · 21 yr
- Origin networks
- 1
IRR
Route objects on 203.196.96.0/20
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| 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