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자율 시스템

AS19957

AT&T Enterprises, LLC

공지된 IP
291,072
CIDR 프리픽스
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

상위 CIDR 범위

CIDRIPPTR Density조직국가StateCity
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

BGP 공지 접두사

실시간 BGP 이상 →

접두사 AS19957 당사의 RIPE RIS 수집기에서 관찰된 BGP에서 실제로 시작됩니다. 이 실시간 라우팅 보기는 위의 레지스트리 할당과 다를 수 있습니다.

Prefix공지 샘플마지막 확인
66.4.27.0/24 28,458 2026-09-12 17:39:33
208.182.124.0/24 21,980 2026-09-12 17:39:20
66.4.60.0/23 16,523 2026-09-12 17:37:50
66.4.32.0/23 15,720 2026-09-12 17:27:35
66.4.19.0/24 14,699 2026-09-12 17:37:17
12.204.208.0/20 11,658 2026-09-12 17:27:35
66.4.81.0/24 11,543 2026-09-12 17:37:17
66.4.40.0/24 11,437 2026-09-12 17:37:17
66.4.18.0/24 11,425 2026-09-12 17:37:17
66.4.126.0/24 11,412 2026-09-12 17:37:17
66.4.78.0/24 11,411 2026-09-12 17:37:17
66.4.38.0/24 11,406 2026-09-12 17:37:17
66.4.16.0/23 11,395 2026-09-12 17:37:17
12.204.201.0/24 11,314 2026-09-12 17:27:35
68.156.28.0/23 11,217 2026-09-12 20:13:15
170.141.60.0/23 11,110 2026-09-12 17:37:52
12.204.192.0/20 10,312 2026-09-12 17:27:35
70.150.247.0/24 9,750 2026-09-12 17:37:52
208.63.128.0/20 9,645 2026-09-12 17:39:20
208.63.129.0/24 9,534 2026-09-12 17:39:20
66.4.14.0/23 9,406 2026-09-12 17:37:17
12.204.209.0/24 8,716 2026-09-12 17:27:35
12.204.206.0/24 8,716 2026-09-12 17:27:35
12.204.208.0/24 8,674 2026-09-12 17:27:35
12.204.216.0/21 8,601 2026-09-12 17:27:35
66.4.0.0/16 8,542 2026-09-12 17:36:26
66.4.9.0/24 8,539 2026-09-12 17:37:17
66.4.124.0/24 8,537 2026-09-12 17:36:26
66.4.28.0/22 8,469 2026-09-12 17:36:26
66.4.18.0/23 8,401 2026-09-12 17:36:26
66.4.8.0/23 8,384 2026-09-12 17:36:26
64.79.176.0/21 8,312 2026-09-12 17:36:26
170.141.56.0/23 8,288 2026-09-12 17:37:52
170.142.0.0/16 8,244 2026-09-12 17:36:26
170.143.0.0/16 8,212 2026-09-12 17:36:26
208.182.0.0/16 8,202 2026-09-12 17:36:26
208.182.101.0/24 8,199 2026-09-12 17:36:26
206.23.0.0/16 8,154 2026-09-12 17:36:26
198.146.0.0/16 8,132 2026-09-12 17:36:26
72.159.76.0/24 6,902 2026-09-12 17:36:26
72.158.184.0/24 6,876 2026-09-12 17:36:26
70.150.21.0/24 6,871 2026-09-12 17:37:52
208.63.128.0/24 6,643 2026-09-12 17:36:26
68.156.24.0/21 2,738 2026-09-12 20:13:15
68.156.24.0/23 2,735 2026-09-12 20:13:15
68.156.26.0/23 2,658 2026-09-12 20:13:15
12.230.239.0/24 1,261 2026-09-12 17:38:11
65.82.99.0/24 1,251 2026-09-12 17:38:11
12.165.35.0/24 1,249 2026-09-12 17:38:11
70.158.144.0/20 1,238 2026-09-12 17:38:11

상위 표시 50 of 54 샘플 볼륨별 공지 접두사.

Frequently Asked Questions

AS19957는 무엇입니까?

AS19957는 AT&T Enterprises, LLC에 할당된 자율 시스템 번호(Autonomous System Number)입니다. ASN은 특정 IP 주소 집합을 제어하고 BGP(Border Gateway Protocol)를 통해 인터넷에서 트래픽이 라우팅되는 방식을 결정하는 네트워크를 식별합니다.

AS19957는 몇 개의 IP 주소를 공지합니까?

AS19957는 26개의 라우팅된 CIDR 접두사를 통해 291.1K개의 IPv4 주소를 공지합니다. 이 네트워크는 United States에 등록되어 있습니다.

AS19957는 누가 운영합니까?

AS19957는 AT&T Enterprises, LLC에 의해 운영됩니다. 이 조직은 United States에 기반을 두고 있습니다. 조직 페이지에서 모든 IP 범위 및 관련 AS를 볼 수 있습니다.

AS19957는 어느 국가에 등록되어 있습니까?

AS19957는 United States에 등록되어 있습니다. 이는 네트워크 운영자의 본사가 위치한 곳을 나타내지만, 해당 AS가 공지하는 IP 주소는 전 세계 사용자에게 서비스를 제공할 수 있습니다.

최종 업데이트: 2026-09-12 20:54:06 UTC
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