Data as of Nov 11, 2026
129.37.0.0/16
No anonymizer space · no proxy exits in 30 daysAT&T Enterprises, LLC
Announcements
Nesting
More-specifics by size
Sized by addresses, colored by each announcement's type. Click a tile with children to zoom in, a leaf to open it.
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 129.37.0.0/24 since Feb 2025 | AS2386 | Internet provider | AT&T Enterprises, LLC | |
| 129.37.2.0/24 since Feb 2025 | AS2386 | Internet provider | AT&T Enterprises, LLC | |
| 129.37.6.0/24 since Feb 2025 | AS2386 | Internet provider | AT&T Enterprises, LLC | |
| 129.37.11.0/24 since Feb 2025 | AS2386 | Internet provider | AT&T Enterprises, LLC | |
| 129.37.136.0/21 since May 2005 | AS2685 | Residential | AT&T Enterprises, LLC | |
| 129.37.144.0/20 since May 2005 | AS2685 | Residential | AT&T Enterprises, LLC | |
| 129.37.160.0/20 since May 2005 | AS2685 | Residential | AT&T Enterprises, LLC | |
| 129.37.176.0/22 since May 2005 | AS2685 | Residential | AT&T Enterprises, LLC |
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
65,536 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Residential | 64,512 | 98% | 9 | |
| Internet provider | 1,024 | 1.6% | 4 |
Network & registry
Origin network
AS7018
US
- Name
- AT&T Enterprises, LLC
- Type
- Internet provider
- Registered
- Jul 30, 1996
- 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 |
|---|---|---|---|---|
| AS7018 | RADB | To allow routing to other ISPs | MAINT-AS7132 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 129.
37. 0. 0/ 16 - Netname
- ATT-129-37-0-0-B
- Registrant
- AT&T Enterprises, LLC
- Organization
- AT&T Enterprises, LLC (AEL-360)
- Org address
- 208 S. Akard St., Dallas, TX, 75202
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-129-37-0-0-1
- Parent
- NET-129-0-0-0-0
- Created
- Jun 6, 1989
- RIR
- ARIN
- Country
- US
- Delegated
- Jun 6, 1989
- Status
- assigned
Report abuse
Abuse contact
- abuse@
att. net - Name
- abuse
- Phone
- +1-919-319-8167
- Handle
- ABUSE7-ARIN