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Sistema Autónomo

AS19957

AT&T Enterprises, LLC

IPs anunciadas
291,072
Prefijos 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 rangos CIDR

CIDRIPsPTR DensityOrganizaciónPaísStateCity
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

Prefijos BGP anunciados

Anomalías BGP en vivo →

Prefijos AS19957 se origina realmente en BGP, observado a través de nuestros colectores RIPE RIS. Esta vista de enrutamiento en vivo puede diferir de la asignación de registro anterior.

PrefixMuestras de anuncioÚltima vez visto
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

Mostrando los principales 50 of 54 prefijos anunciados por volumen de muestra.

Frequently Asked Questions

¿Qué es AS19957?

AS19957 es un Número de Sistema Autónomo asignado a AT&T Enterprises, LLC. Un ASN identifica una red que controla un conjunto específico de direcciones IP y determina cómo se enruta el tráfico a través de internet mediante BGP (Border Gateway Protocol).

¿Cuántas direcciones IP anuncia AS19957?

AS19957 anuncia 291.1K direcciones IPv4 distribuidas en 26 prefijos CIDR enrutados. La red está registrada en United States.

¿Quién opera AS19957?

AS19957 es operado por AT&T Enterprises, LLC. La organización tiene su sede en United States. Puedes ver todos los rangos de IP y los ASNs relacionados en la página de la organización.

¿En qué país está registrado AS19957?

AS19957 está registrado en United States. Esto indica dónde tiene su sede el operador de red, aunque las direcciones IP que anuncia pueden servir a usuarios a nivel global.

Última actualización: 2026-09-12 04:24:05 UTC
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