AT&T Enterprises, LLC

Data as of 2026-08-16
GLEIF verified
Complete entity footprint
4 linked clusters · 4,551 netblocks · 111,015,432 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.
View the full entity page →
LEI
254900BOOH55HZ1NF803
Registered name
AT&T Enterprises, LLC
Jurisdiction
US-DE
Ultimate parent
AT&T INC.
549300Z40J86GGSTL398
Cluster stats
Netblocks4,376 · 110,130,944 IPv4 addresses
IPv6 391 prefixes (largest 2600:300::/24)
Registered in United States (2,835) · Netherlands (88) · Japan (50) · United Kingdom (7) · Hong Kong (6) · Australia (5)
All fragments 4,534 blocks across 2 clusters
Cluster ID222313076
RegistryBGP
Owner jurisdictionUS-DE
Customersfind customers using this network →
Evidence & provenance ?
Attribution GLEIF legal-entity match
Legal identityLEI 254900BOOH55HZ1NF803
Shared handles clustered on 77 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

8 weekly snapshots · JSON
4,534 +229 netblocks since 2026-07-05
2026-07-05 peak 4,534 2026-08-16

IP Ranges (4,376)

showing 50 of 4,376 — 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 allocations
CIDR
2600:300::/24
2602:300::/24
2600:1700::/28
2001:1890::/29
2001:1be0::/32
2001:4b8::/32
2001:d80::/32
2606:ae00::/32
2607:10c0::/32
2607:f9a8::/32
2800:3d0::/32
2610:e8:8000::/33
2610:e8::/33
2001:506:4000::/35
2001:506:6000::/35

Domains hosted in this network

what's this?
att.net priceline.com southstatebank.com samsung.com supermicro.com mcmaster.com broadway.bank sterbank.bank snet.net cadencebank.com 3gppnetwork.org updog.cloud attens.net attens.com oregon.gov swbell.net gladns.com dealercenter.net mandarb.com ok.gov

Customer-delegated space

how is this classified?
Unclassified 4,203 (96.0%)
Customer access pools 313 (7.2%)

Corporate group (4 confirmed entities)

+2 additional unconfirmed candidates not shown — full list (JSON)

Network trust

what's this?
RPKI hygiene: F how networks compare →
16.9% of checked blocks have valid RPKI ROA coverage (337 of 2,000, sampled from 4,516)
Possible discrepancies (3)

These blocks are registered to AT&T Enterprises, LLC but cryptographically authorized for a different, unrelated network (3 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
162.244.208.0/24 /24 authorized for AS2914 — NTT America, Inc.

NIC Handles

ABUSE7-ARIN ABUSE7-ARIN AEL-360 AEL-360 AS12967-MNT AS13965 AS13979 AS14654 AS16961 AS19957 AS20057 AS2386 +65 more