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AS203

Level 3 Parent, LLC

Level 3 Parent, LLC United States 🌐 level3.com
已宣布的 IP 地址
307,712
CIDR 前缀
104
ASN
AS203

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.

58/100
Caution
How this score is built
  • Baseline (neutral) 65
  • Active-threat / abuse risk −12
  • Isp allocation +5
  • Trust score 58 / 100

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

About Level 3 Communications

Level 3 Communications, Inc. was an American multinational telecommunications and internet service provider company headquartered in Broomfield, Colorado.

Founded
1985
Headquarters
Frankfurt
Industry
telecommunications industry
Official website ↗ Summary from Wikipedia, CC BY-SA 4.0 · Data from Wikidata

⚠ 24 MOAS 前缀es — 检测到多源 ASNs

所有 MOAS 异常 →

此前由 AS203 公告的稳定前缀现在也由另一个 ASN 公告（MOAS — 多源 AS），这是通过我们的 RIPE RIS 收集器检测到的。这通常是良性的（任播、多宿主或近期转移）—— 但它可能预示着路由泄漏或前缀劫持，因此值得检查。

前缀源 ASNs最后检测 (UTC)
156.93.228.0/24 AS203, AS10695 2026-09-10 22:40:48
143.199.145.0/24 AS203, AS21680 2026-09-10 22:40:48
63.144.218.0/24 AS203, AS22587 2026-09-10 22:40:48
63.150.74.0/23 AS203, AS22587 2026-09-10 22:40:48
170.46.132.0/23 AS203, AS18697 2026-09-10 22:40:48
170.46.162.0/24 AS203, AS18697 2026-09-10 22:40:48
143.199.96.0/24 AS203, AS21680 2026-09-10 22:40:48
148.59.168.0/24 AS203, AS26845 2026-09-10 22:40:48
170.46.0.0/16 AS203, AS18697 2026-09-10 22:40:48
65.222.131.0/24 AS203, AS46909 2026-09-10 22:40:48
65.240.184.0/23 AS203, AS22587 2026-09-10 22:40:48
170.46.200.0/24 AS203, AS18697 2026-09-10 22:40:48
205.166.171.0/24 AS203, AS26845 2026-09-10 22:40:48
170.46.150.0/24 AS203, AS18697 2026-09-10 22:40:48
204.17.219.0/24 AS203, AS23015 2026-09-10 22:40:48

显示最近检测到的 15 个，共 24 个 MOAS 前缀。大型网络上的许多多源前缀是良性的（任播）；请参阅 所有 MOAS 异常.

热门 CIDR 范围

CIDRIP 地址PTR Density组织国家StateCity
149.21.0.0/16 65.5K
0.0%
McKesson Corp. US — —
156.42.0.0/16 65.5K
0.4%
Level 3 Parent, LLC US Arizona Phoenix
170.46.0.0/16 65.5K
0.0%
Level 3 Parent, LLC US Vermont Rutland
143.112.0.0/17 32.8K
0.0%
McKesson Corp. US Virginia Woodbridge
156.42.128.0/17 32.8K
0.0%
Level 3 Parent, LLC US Arizona Phoenix
143.112.128.0/18 16.4K
0.0%
Level 3 Parent, LLC US Nevada Henderson
156.42.64.0/18 16.4K
0.0%
Level 3 Parent, LLC US Arizona Phoenix
156.42.128.0/18 16.4K
0.0%
Level 3 Parent, LLC US Arizona Phoenix
143.112.160.0/19 8.2K
0.0%
Level 3 Parent, LLC US — —
143.112.192.0/19 8.2K
0.0%
Level 3 Parent, LLC US — —
156.42.32.0/19 8.2K
0.0%
Level 3 Parent, LLC US Arizona Phoenix
156.42.224.0/19 8.2K
0.0%
Level 3 Parent, LLC US — —
161.209.192.0/19 8.2K
0.0%
Level 3 Parent, LLC US California Long Beach
143.112.144.0/20 4.1K
0.0%
Level 3 Parent, LLC US Nevada Henderson
143.112.224.0/20 4.1K
0.0%
Level 3 Parent, LLC US — —
161.209.96.0/20 4.1K
0.0%
Level 3 Parent, LLC US — —
206.203.96.0/20 4.1K
0.0%
McKesson Corp. US — —
216.163.240.0/20 4.1K
5.2%
Level 3 Parent, LLC US New Jersey Chatham
143.112.136.0/21 2.0K
0.0%
Level 3 Parent, LLC US — —
143.112.240.0/21 2.0K
0.0%
Level 3 Parent, LLC US — —
156.42.208.0/21 2.0K
0.0%
Level 3 Parent, LLC US — —
161.209.96.0/21 2.0K
0.0%
Level 3 Parent, LLC US — —
206.203.112.0/21 2.0K
0.0%
McKesson Corp. US — —
216.235.200.0/21 2.0K
1.9%
Level 3 Parent, LLC US — —
63.128.0.0/22 1.0K
0.0%
Level 3 Parent, LLC US — —
63.128.8.0/22 1.0K
0.0%
Level 3 Parent, LLC US — —
143.112.132.0/22 1.0K
0.0%
Level 3 Parent, LLC US — —
143.112.248.0/22 1.0K
0.0%
Level 3 Parent, LLC US — —
205.139.104.0/22 1.0K
2.7%
Level 3 Parent, LLC US — —
206.203.68.0/22 1.0K
0.0%
Level 3 Parent, LLC US — —
206.203.84.0/22 1.0K
0.0%
McKesson Corp. US — —
206.203.124.0/22 1.0K
0.0%
McKesson Corp. US — —
206.227.192.0/22 1.0K
0.0%
Level 3 Parent, LLC US — —
206.227.208.0/22 1.0K
0.0%
Level 3 Parent, LLC US — —
209.67.132.0/22 1.0K
0.0%
Level 3 Parent, LLC US — —
209.67.136.0/22 1.0K
0.0%
Level 3 Parent, LLC US — —
209.164.192.0/22 1.0K
3.8%
Level 3 Parent, LLC US — —
63.150.74.0/23 512
16.2%
Global Payments, Inc. US — —
64.241.120.0/23 512
0.0%
Level 3 Parent, LLC US — —
65.240.184.0/23 512
8.6%
Global Payments, Inc. US — —
143.112.252.0/23 512
0.0%
Level 3 Parent, LLC US — —
143.199.140.0/23 512
0.0%
Level 3 Parent, LLC US — —
204.153.154.0/23 512
2.1%
Level 3 Parent, LLC US Arizona Peoria
205.139.102.0/23 512
0.0%
Level 3 Parent, LLC US — —
206.203.76.0/23 512
0.0%
Level 3 Parent, LLC US — —
206.203.82.0/23 512
0.0%
McKesson Corp. US — —
206.203.94.0/23 512
0.0%
McKesson Corp. US — —
206.203.120.0/23 512
0.0%
McKesson Corp. US — —
206.227.216.0/23 512
0.0%
Level 3 Parent, LLC US — —
206.227.220.0/23 512
0.0%
Level 3 Parent, LLC US — —
206.227.226.0/23 512
0.0%
Level 3 Parent, LLC US — —
209.164.204.0/23 512
0.0%
Level 3 Parent, LLC US — —
209.164.208.0/23 512
5.5%
Level 3 Parent, LLC US — —
209.164.220.0/23 512
4.1%
Level 3 Parent, LLC US — —
8.7.155.0/24 256
0.4%
Level 3 Parent, LLC US — —
8.15.229.0/24 256
0.0%
Level 3 Parent, LLC US — —
8.18.63.0/24 256
0.0%
Level 3 Parent, LLC US — —
8.20.69.0/24 256
5.5%
Level 3 Parent, LLC US — —
8.25.26.0/24 256
0.0%
Level 3 Parent, LLC US — —
8.44.205.0/24 256
0.0%
Level 3 Parent, LLC US — —
38.107.240.0/24 256
0.0%
Level 3 Parent, LLC US Texas Dallas
62.67.222.0/24 256
0.0%
Level 3 Parent, LLC GB — —
63.106.6.0/24 256
9.0%
Global Payments, Inc. US — —
63.128.7.0/24 256
0.0%
Level 3 Parent, LLC US — —
63.128.12.0/24 256
0.0%
Level 3 Parent, LLC US — —
63.128.14.0/24 256
0.8%
Level 3 Parent, LLC US Massachusetts Boston
63.128.20.0/24 256
0.0%
Level 3 Parent, LLC US — —
63.128.24.0/24 256
0.0%
Level 3 Parent, LLC US — —
63.144.218.0/24 256
15.6%
Global Payments, Inc. US — —
63.175.205.0/24 256
0.0%
NDCHealth Corporation US Vermont Burlington
63.233.90.0/24 256
99.2%
Dougherty Financial Group LLC US — —
64.22.148.0/24 256
0.0%
Level 3 Parent, LLC US — —
64.208.127.0/24 256
8.2%
Level 3 Parent, LLC US — —
64.209.141.0/24 256
0.0%
Level 3 Parent, LLC US — —
64.210.246.0/24 256
0.0%
Level 3 Parent, LLC US — —
65.222.131.0/24 256
93.8%
Level 3 Parent, LLC US Pennsylvania Philadelphia
66.194.187.0/24 256
37.9%
Level 3 Parent, LLC US — —
128.177.179.0/24 256
7.8%
Level 3 Parent, LLC US Maryland Crofton
143.112.254.0/24 256
0.0%
Level 3 Parent, LLC US — —
143.199.28.0/24 256
0.0%
Level 3 Parent, LLC US — —
143.199.96.0/24 256
0.0%
Level 3 Parent, LLC US Massachusetts Medfield
143.199.109.0/24 256
0.0%
Level 3 Parent, LLC US — —
143.199.135.0/24 256
0.0%
Level 3 Parent, LLC US — —
143.199.145.0/24 256
0.0%
Level 3 Parent, LLC US — —
143.199.222.0/24 256
0.0%
Level 3 Parent, LLC US — —
148.59.168.0/24 256
0.0%
Level 3 Parent, LLC US — —
148.59.169.0/24 256
0.8%
Level 3 Parent, LLC US — —
158.120.127.0/24 256
0.4%
Level 3 Parent, LLC US Colorado Colorado Springs
161.209.111.0/24 256
0.0%
Level 3 Parent, LLC US — —
161.209.225.0/24 256
0.8%
Level 3 Parent, LLC US — —
170.22.90.0/24 256
0.0%
Level 3 Parent, LLC US — —
170.203.252.0/24 256
6.3%
Level 3 Parent, LLC US — —
189.125.51.0/24 256
0.0%
Level 3 Parent, LLC BR — —
192.26.214.0/24 256
0.0%
Level 3 Parent, LLC US — —
192.42.110.0/24 256
7.8%
Level 3 Parent, LLC US District of Columbia Washington
192.147.2.0/24 256
0.4%
Level 3 Parent, LLC US — —
198.135.250.0/24 256
0.0%
Level 3 Parent, LLC US — —
198.200.148.0/24 256
0.0%
Level 3 Parent, LLC US — —
204.17.219.0/24 256
0.0%
Cambridge Mercantile Corp. US — —
204.146.159.0/24 256
0.0%
Level 3 Parent, LLC US — —

BGP 公告前缀

实时 BGP 异常 →

前缀 AS203 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
66.193.107.0/24 17,570 2026-09-05 03:35:34
192.26.214.0/24 11,905 2026-09-10 22:11:37
64.210.246.0/24 9,956 2026-09-10 22:11:48
204.146.159.0/24 9,601 2026-09-10 12:50:29
143.199.28.0/24 8,847 2026-09-10 22:11:37
143.199.135.0/24 8,840 2026-09-10 22:11:32
143.199.222.0/24 8,839 2026-09-10 22:11:37
148.59.168.0/24 8,833 2026-09-10 22:11:48
143.199.109.0/24 8,806 2026-09-10 22:11:48
65.121.54.0/24 8,400 2026-09-09 06:55:35
143.199.140.0/23 8,006 2026-09-10 22:11:32
143.199.96.0/24 7,987 2026-09-10 22:11:48
8.18.63.0/24 7,764 2026-09-10 22:11:42
189.125.51.0/24 7,535 2026-09-10 22:11:43
8.44.205.0/24 7,508 2026-09-10 22:11:42
8.20.69.0/24 7,379 2026-09-10 22:11:32
216.163.247.0/24 7,375 2026-09-10 22:11:37
216.163.246.0/24 7,310 2026-09-10 22:11:37
209.164.193.0/24 7,288 2026-09-10 22:11:37
209.164.207.0/24 7,282 2026-09-10 22:11:37
216.163.241.0/24 7,263 2026-09-10 22:11:37
8.25.26.0/24 7,249 2026-09-10 22:11:37
216.163.244.0/24 7,246 2026-09-10 22:11:37
209.164.205.0/24 7,245 2026-09-10 22:11:37
209.164.204.0/24 7,241 2026-09-10 22:11:37
216.163.240.0/24 7,238 2026-09-10 22:11:37
216.163.243.0/24 7,235 2026-09-10 22:11:37
209.164.195.0/24 7,234 2026-09-10 22:11:37
216.163.242.0/24 7,233 2026-09-10 22:11:37
209.164.194.0/24 7,231 2026-09-10 22:11:37
216.163.245.0/24 7,216 2026-09-10 22:11:37
209.164.192.0/24 7,204 2026-09-10 22:11:37
143.199.145.0/24 7,114 2026-09-10 22:11:32
8.15.229.0/24 7,065 2026-09-10 22:11:48
216.33.160.0/24 7,010 2026-09-10 22:11:48
8.7.155.0/24 6,880 2026-09-10 22:11:37
216.163.252.0/24 6,879 2026-09-10 22:11:37
216.163.253.0/24 6,831 2026-09-10 22:11:37
209.164.223.0/24 6,825 2026-09-10 22:11:37
216.163.251.0/24 6,796 2026-09-10 22:11:37
209.164.209.0/24 6,785 2026-09-10 22:11:37
209.164.211.0/24 6,783 2026-09-10 22:11:37
209.164.208.0/24 6,782 2026-09-10 22:11:37
216.163.255.0/24 6,780 2026-09-10 22:11:37
216.163.250.0/24 6,778 2026-09-10 22:11:37
209.164.220.0/24 6,776 2026-09-10 22:11:37
216.163.249.0/24 6,775 2026-09-10 22:11:37
209.164.221.0/24 6,769 2026-09-10 22:11:37
216.163.248.0/24 6,763 2026-09-10 22:11:37
216.163.254.0/24 6,757 2026-09-10 22:11:37

显示前 50 of 280 按样本量公告的前缀。

Frequently Asked Questions

什么是 AS203？

AS203 是分配给 Level 3 Parent, 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。

AS203 公告了多少个 IP 地址？

AS203 公告了 307.7K 个 IPv4 地址，分布在 104 个路由 CIDR 前缀中。 该网络在 United States 注册。

谁运营 AS203？

AS203 由 Level 3 Parent, 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。

AS203 在哪个国家注册？

AS203 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。

最后更新：2026-09-10 22:39:05 UTC
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