Data as of Nov 13, 2026
122.248.136.0/21
No anonymizer space · no proxy exits in 30 daysAT&T Enterprises, LLC · space held by AT&T Japan K.K.
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
2,048 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Internet provider | 1,324 | 65% | 17 | |
| Business | 724 | 35% | 43 |
Network & registry
Announced by
Covering announcement 122.248.128.0/18
- Prefix
- 122.248.128.0/18
- Announced by
- AS2687 AT&T Enterprises, LLC
- Type
- Internet provider
- Proxy exits
- 3
- 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 122.248.128.0/18
122.248.128.0/18
Routing history
- Pattern
- Stable
- First seen
- Dec 2006
- Current origin since
- Dec 2006 · 20 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 122.
248. 128. 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
- May 4, 2026
- Maintainer
- APNIC-HM
- RIR
- APNIC
- Country
- JP
- Delegated
- Nov 17, 2006
- Status
- assigned
Report abuse
Abuse contact
- peering@
intl. att. com - Name
- ABUSE ATTOPENNETAP
- Handle
- AA1420-AP