AT&T Enterprises, LLC
Data as of 2026-08-30
GLEIF verified
Complete entity footprint
3 linked clusters ·
4,555 netblocks ·
111,015,944 IPv4 addresses ·
395 IPv6 prefixes
This organisation's clusters combined by evidence —
shared GLEIF corporate family
— not name similarity, so genuinely different organisations that share a name are excluded.
LEI
254900BOOH55HZ1NF803
Registered name
AT&T Enterprises, LLC
Jurisdiction
Ultimate parent
AT&T INC.
549300Z40J86GGSTL398
Cluster stats
| Netblocks | 4,399 · 110,131,456 IPv4 addresses |
| IPv6 | 391 prefixes (largest 2600:300::/24) |
| Registered in | United States (2,898) · Japan (44) · Netherlands (41) · Hong Kong (5) · Germany (2) · United Kingdom (2) |
| All fragments | 5,334 blocks across 28 clusters |
| Cluster ID | 232267336 |
| Registry | BGP |
| Owner jurisdiction | US-DE |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | GLEIF legal-entity match |
| Legal identity | LEI 254900BOOH55HZ1NF803 |
| Shared handles | clustered on 80 shared RIR contact/maintainer handles |
| Registry names | 5 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works · report an issue | |
Footprint over time
10 weekly snapshots · JSON
4,544
+239 netblocks since 2026-07-05
2026-07-05
peak 4,544
2026-08-30
IP Ranges (4,399)
showing 50 of 4,399 — see all — ⬇ export CSV (free export limited to 500 rows — subscribe for the full export)| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 7.193.230.0/24 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.0.0.0/22 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.17.241.0/24 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.29.116.0/24 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.29.117.0/24 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.29.118.0/24 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.29.119.0/24 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.42.61.0/24 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.71.77.0/24 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.72.0.0/17 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.72.0.0/19 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.72.32.0/21 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.72.40.0/21 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.72.48.0/21 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.72.56.0/21 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.72.64.0/22 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.72.68.0/22 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.72.72.0/22 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.72.76.0/23 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.72.82.0/23 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.72.86.0/24 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.72.88.0/23 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.72.90.0/23 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.72.92.0/22 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.72.96.0/22 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.72.100.0/23 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.72.102.0/24 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.72.104.0/21 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.72.113.0/24 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.72.114.0/23 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.72.116.0/23 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.72.119.0/24 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.72.120.0/24 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.72.122.0/24 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.72.123.0/24 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.72.126.0/24 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.72.128.0/17 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.72.128.0/24 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.72.129.0/24 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.72.130.0/24 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.72.132.0/24 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.72.134.0/23 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.72.136.0/21 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.72.144.0/21 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.72.160.0/20 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.72.192.0/19 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.72.224.0/20 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.72.240.0/21 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.72.248.0/24 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
| 12.72.251.0/24 | AT&T Enterprises, LLC | BGP | ANNOUNCED | ● high |
IPv6 ranges (391)
showing the 15 largest allocationsDomains hosted in this network
what's this?Customer-delegated space
how is this classified?
Unclassified
4,215 (95.8%)
Customer access pools
329 (7.5%)
Corporate group (3 confirmed entities)
+2 additional unconfirmed candidates not shown — full list (JSON)- AT&T Global Network Services Nederland B.V. 138 blocks
- DIRECTV, LLC 32 blocks
Network trust
what's this?
RPKI hygiene: D
how networks compare →
33.0%
of checked blocks have valid RPKI ROA coverage
(660 of 2,000, sampled from 4,544)
Possible discrepancies (2)
These blocks are registered to AT&T Enterprises, LLC but cryptographically authorized for a different, unrelated network (2 distinct holders) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.
| 165.110.0.0/16 /16 | authorized for AS401953 — U.S. Small Business Administration |
| 173.186.242.0/24 /24 | authorized for AS7029 — Windstream Communications LLC |
NIC Handles
ABUSE7-ARIN
ABUSE7-ARIN
AEL-360
AEL-360
AS12967-MNT
AS13342
AS13965
AS13979
AS14654
AS16961
AS18862
AS19957
+68 more