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Système Autonome

AS19957

AT&T Enterprises, LLC

IPs annoncées
291,072
Préfixes CIDR
26
ASN
AS19957

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

70/100
Moderate
How this score is built
  • Baseline (neutral) 65
  • Isp allocation +5
  • Trust score 70 / 100

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

About AT&T

AT&T Inc., an abbreviation of its predecessor's original name, the American Telephone and Telegraph Company, is an American multinational telecommunications company headquartered at the Whitacre Tower in Downtown Dallas, Texas. AT&T is the world's third-largest telecommunications company by revenue, the third-largest wireless carrier in the United States behind T-Mobile and Verizon, and the nation's largest fiber internet provider.

Founded
1983
Headquarters
San Antonio
Industry
telecommunications industry
Employees
273,000

Principales plages CIDR

CIDRIPsPTR DensityOrganisationPaysStateCity
66.4.0.0/16 65.5K
3.3%
AT&T Enterprises, LLC US Tennessee Mount Juliet
198.146.0.0/16 65.5K
0.1%
AT&T Enterprises, LLC US Tennessee Columbia
206.23.0.0/16 65.5K
0.1%
AT&T Enterprises, LLC US Tennessee Newbern
208.182.0.0/16 65.5K
1.2%
AT&T Enterprises, LLC US
12.204.208.0/20 4.1K
0.2%
AT&T Enterprises, LLC US Tennessee Antioch
70.158.144.0/20 4.1K
0.0%
AT&T Enterprises, LLC US
74.252.160.0/20 4.1K
0.0%
AT&T Enterprises, LLC US
208.63.128.0/20 4.1K
0.0%
AT&T Enterprises, LLC US
12.204.192.0/21 2.0K
0.1%
AT&T Enterprises, LLC US
68.156.24.0/21 2.0K
0.0%
AT&T Enterprises, LLC US Tennessee Morristown
70.150.248.0/21 2.0K
0.0%
AT&T Enterprises, LLC US
12.204.204.0/22 1.0K
0.5%
AT&T Enterprises, LLC US
74.254.176.0/22 1.0K
0.0%
AT&T Enterprises, LLC US
12.204.202.0/23 512
0.0%
AT&T Enterprises, LLC US
64.79.182.0/23 512
0.0%
AT&T Enterprises, LLC US
170.141.56.0/23 512
0.0%
AT&T Enterprises, LLC US
170.141.60.0/23 512
0.0%
AT&T Enterprises, LLC US
12.165.35.0/24 256
0.0%
AT&T Enterprises, LLC US
12.204.201.0/24 256
1.2%
AT&T Enterprises, LLC US
12.230.239.0/24 256
0.0%
AT&T Enterprises, LLC US
65.82.99.0/24 256
0.0%
AT&T Enterprises, LLC US
70.150.21.0/24 256
99.6%
AT&T Enterprises, LLC US South Carolina Spartanburg
70.150.247.0/24 256
99.6%
AT&T Enterprises, LLC US
72.158.184.0/24 256
0.0%
AT&T Enterprises, LLC US
72.159.76.0/24 256
0.0%
AT&T Enterprises, LLC US
74.254.180.0/24 256
0.0%
AT&T Enterprises, LLC US

Préfixes BGP annoncés

Anomalies BGP en direct →

Préfixes AS19957 provient réellement du BGP, observé par nos collecteurs RIPE RIS. Cette vue de routage en direct peut différer de l'allocation de registre ci-dessus.

PrefixÉchantillons d'annonceDernière vue
66.4.27.0/24 28,434 2026-09-12 04:16:49
208.182.124.0/24 21,958 2026-09-12 04:17:05
66.4.60.0/23 16,500 2026-09-12 04:15:51
66.4.32.0/23 15,699 2026-09-12 04:12:14
66.4.19.0/24 14,676 2026-09-12 04:16:53
12.204.208.0/20 11,634 2026-09-12 04:15:55
66.4.81.0/24 11,518 2026-09-12 04:17:27
66.4.40.0/24 11,413 2026-09-12 04:17:27
66.4.18.0/24 11,402 2026-09-12 04:17:27
66.4.126.0/24 11,389 2026-09-12 04:17:27
66.4.78.0/24 11,388 2026-09-12 04:17:27
66.4.38.0/24 11,382 2026-09-12 04:17:27
66.4.16.0/23 11,372 2026-09-12 04:17:27
12.204.201.0/24 11,289 2026-09-12 04:15:51
68.156.28.0/23 11,192 2026-09-12 04:15:51
170.141.60.0/23 11,087 2026-09-12 04:17:35
12.204.192.0/20 10,288 2026-09-12 04:15:55
70.150.247.0/24 9,726 2026-09-12 04:17:35
208.63.128.0/20 9,624 2026-09-12 04:15:55
208.63.129.0/24 9,511 2026-09-12 04:15:55
12.204.206.0/24 8,691 2026-09-12 04:16:27
12.204.209.0/24 8,691 2026-09-12 04:16:27
12.204.208.0/24 8,649 2026-09-12 04:16:27
12.204.216.0/21 8,576 2026-09-12 04:16:27
66.4.0.0/16 8,518 2026-09-12 04:17:27
66.4.9.0/24 8,515 2026-09-12 04:17:27
66.4.124.0/24 8,513 2026-09-12 04:17:27
66.4.14.0/23 8,459 2026-09-12 04:17:27
66.4.28.0/22 8,445 2026-09-12 04:17:27
66.4.18.0/23 8,377 2026-09-12 04:17:27
66.4.8.0/23 8,360 2026-09-12 04:17:27
64.79.176.0/21 8,288 2026-09-12 04:17:26
170.141.56.0/23 8,264 2026-09-12 04:17:35
170.142.0.0/16 8,222 2026-09-12 04:17:20
170.143.0.0/16 8,190 2026-09-12 04:17:20
208.182.0.0/16 8,181 2026-09-12 04:17:20
208.182.101.0/24 8,178 2026-09-12 04:17:20
206.23.0.0/16 8,132 2026-09-12 04:17:20
198.146.0.0/16 8,110 2026-09-12 04:17:20
72.159.76.0/24 6,879 2026-09-12 04:17:37
72.158.184.0/24 6,853 2026-09-12 04:17:37
70.150.21.0/24 6,846 2026-09-12 04:17:36
208.63.128.0/24 6,622 2026-09-12 04:17:20
68.156.24.0/21 2,714 2026-09-12 04:16:28
68.156.24.0/23 2,711 2026-09-12 04:16:28
68.156.26.0/23 2,635 2026-09-12 04:12:14
12.230.239.0/24 1,237 2026-09-12 04:16:28
12.165.35.0/24 1,225 2026-09-12 04:16:28
65.82.99.0/24 1,225 2026-09-12 04:16:28
70.158.144.0/20 1,215 2026-09-12 04:16:28

Affichage des meilleurs 50 of 54 préfixes annoncés par volume d'échantillons.

Frequently Asked Questions

Qu'est-ce que l'AS19957 ?

L'AS19957 est un numéro de système autonome attribué à AT&T Enterprises, LLC. Un ASN identifie un réseau qui contrôle un ensemble spécifique d'adresses IP et détermine comment le trafic est acheminé sur internet via BGP (Border Gateway Protocol).

Combien d'adresses IP l'AS19957 annonce-t-il ?

L'AS19957 annonce 291.1K adresses IPv4 réparties sur 26 préfixes CIDR routés. Le réseau est enregistré en United States.

Qui opère l'AS19957 ?

L'AS19957 est opéré par AT&T Enterprises, LLC. L'organisation est basée en United States. Vous pouvez consulter toutes les plages IP et les ASN associés sur la page de l'organisation.

Dans quel pays l'AS19957 est-il enregistré ?

L'AS19957 est enregistré en United States. Cela indique où le siège de l'opérateur de réseau est situé, bien que les adresses IP qu'il annonce puissent servir des utilisateurs dans le monde entier.

Dernière mise à jour : 2026-09-12 04:24:05 UTC
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