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.
- 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.
热门 CIDR 范围
BGP 公告前缀
实时 BGP 异常 →前缀 AS19957 实际源自 BGP，通过我们的 RIPE RIS 收集器观测。此实时路由视图可能与上述注册分配有所不同。
| Prefix | 公告样本 | 最后观测 |
|---|---|---|
| 66.4.27.0/24 | 21,338 | 2026-07-28 13:59:40 |
| 66.4.32.0/23 | 9,581 | 2026-07-28 13:59:40 |
| 66.4.126.0/24 | 8,374 | 2026-07-28 13:59:33 |
| 66.4.81.0/24 | 8,365 | 2026-07-28 13:59:33 |
| 66.4.40.0/24 | 8,347 | 2026-07-28 13:59:33 |
| 66.4.18.0/24 | 8,346 | 2026-07-28 13:59:33 |
| 66.4.16.0/23 | 8,337 | 2026-07-28 13:59:33 |
| 66.4.38.0/24 | 8,315 | 2026-07-28 13:59:33 |
| 66.4.78.0/24 | 8,308 | 2026-07-28 13:59:33 |
| 66.4.19.0/24 | 6,887 | 2026-07-28 13:59:33 |
| 12.204.201.0/24 | 6,879 | 2026-07-28 13:59:40 |
| 12.204.206.0/24 | 5,518 | 2026-07-28 13:59:40 |
| 12.204.209.0/24 | 5,502 | 2026-07-28 13:59:40 |
| 12.204.208.0/20 | 5,483 | 2026-07-28 13:59:34 |
| 12.204.208.0/24 | 5,477 | 2026-07-28 13:59:40 |
| 66.4.9.0/24 | 5,471 | 2026-07-28 13:59:33 |
| 66.4.60.0/23 | 5,442 | 2026-07-28 13:59:40 |
| 66.4.0.0/16 | 5,428 | 2026-07-28 13:59:40 |
| 66.4.124.0/24 | 5,412 | 2026-07-28 13:59:40 |
| 66.4.14.0/23 | 5,403 | 2026-07-28 13:59:40 |
| 12.204.216.0/21 | 5,396 | 2026-07-28 13:59:40 |
| 66.4.28.0/22 | 5,375 | 2026-07-28 13:59:40 |
| 66.4.18.0/23 | 5,301 | 2026-07-28 13:59:40 |
| 66.4.8.0/23 | 5,286 | 2026-07-28 13:59:40 |
| 170.141.56.0/23 | 5,270 | 2026-07-28 13:54:14 |
| 208.182.124.0/24 | 5,263 | 2026-07-28 13:54:09 |
| 208.182.0.0/16 | 5,249 | 2026-07-28 13:54:09 |
| 170.141.60.0/23 | 5,232 | 2026-07-28 13:54:14 |
| 208.182.101.0/24 | 5,230 | 2026-07-28 13:54:09 |
| 170.142.0.0/16 | 5,222 | 2026-07-28 13:54:09 |
| 170.143.0.0/16 | 5,212 | 2026-07-28 13:54:09 |
| 64.79.176.0/21 | 5,207 | 2026-07-28 13:59:40 |
| 206.23.0.0/16 | 5,204 | 2026-07-28 13:54:09 |
| 198.146.0.0/16 | 5,189 | 2026-07-28 13:54:09 |
| 12.204.192.0/20 | 4,143 | 2026-07-28 13:59:34 |
| 72.159.76.0/24 | 3,791 | 2026-07-28 13:49:39 |
| 72.158.184.0/24 | 3,788 | 2026-07-28 13:49:39 |
| 70.150.21.0/24 | 3,782 | 2026-07-28 13:49:42 |
| 70.150.247.0/24 | 3,772 | 2026-07-28 13:49:42 |
| 208.63.128.0/20 | 3,745 | 2026-07-28 13:54:55 |
| 208.63.129.0/24 | 3,725 | 2026-07-28 13:54:20 |
| 208.63.128.0/24 | 3,676 | 2026-07-28 13:54:09 |
Frequently Asked Questions
什么是 AS19957？
AS19957 是分配给 AT&T Enterprises, LLC 的自治系统编号 (Autonomous System Number)。ASN 标识一个控制特定 IP 地址集的网络，并通过 BGP（边界网关协议）确定流量如何在互联网上传输。
AS19957 公告了多少个 IP 地址？
AS19957 公告了 276.7K 个 IPv4 地址，分布在 17 个路由 CIDR 前缀中。 该网络在 United States 注册。
谁运营 AS19957？
AS19957 由 AT&T Enterprises, LLC 运营。 该组织总部位于 United States。 您可以在组织页面查看所有 IP 范围和相关 ASNs。
AS19957 在哪个国家注册？
AS19957 在 United States 注册。这表明网络运营商的总部所在地，尽管其公告的 IP 地址可能服务全球用户。
