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Autonomes System

AS203

Level 3 Parent, LLC

Angezeigte IPs
307,712
CIDR-Präfixe
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

⚠ 24 MOAS-Präfixes — mehrere Origin-ASNs erkannt

Alle MOAS-Anomalien →

Ein zuvor stabiles Präfix, das von AS203 wird jetzt auch von einer anderen ASN angekündigt (MOAS — Multiple-Origin AS), erkannt von unseren RIPE RIS Kollektoren. Oft harmlos (Anycast, Multi-Homing oder eine kürzliche Übertragung) — aber es kann ein Route Leak oder Prefix Hijack signalisieren, daher ist eine Überprüfung sinnvoll.

PräfixOrigin-ASNsZuletzt erkannt (UTC)
156.93.228.0/24 AS203, AS10695 2026-09-10 14:40:46
216.33.160.0/24 AS203, AS3561, AS10753 2026-09-10 14:40:46
206.227.216.0/23 AS203, AS6109 2026-09-10 14:40:46
63.144.218.0/24 AS203, AS22587 2026-09-10 14:40:46
63.150.74.0/23 AS203, AS22587 2026-09-10 14:40:46
170.46.132.0/23 AS203, AS18697 2026-09-10 14:40:46
170.46.162.0/24 AS203, AS18697 2026-09-10 14:40:46
143.199.96.0/24 AS203, AS21680 2026-09-10 14:40:46
148.59.168.0/24 AS203, AS26845 2026-09-10 14:40:46
170.46.0.0/16 AS203, AS18697 2026-09-10 14:40:46
65.222.131.0/24 AS203, AS46909 2026-09-10 14:40:46
65.240.184.0/23 AS203, AS22587 2026-09-10 14:40:46
170.46.200.0/24 AS203, AS18697 2026-09-10 14:40:46
205.166.171.0/24 AS203, AS26845 2026-09-10 14:40:46
170.46.150.0/24 AS203, AS18697 2026-09-10 14:40:46

Zeige die 15 zuletzt erkannten von 24 MOAS-Präfixen. Viele Multi-Origin-Präfixe in großen Netzwerken sind harmlos (Anycast); siehe alle MOAS-Anomalien.

Top CIDR-Bereiche

CIDRIPsPTR DensityOrganisationLandStateCity
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-angekündigte Präfixe

Live BGP-Anomalien →

Präfixe AS203 stammt tatsächlich aus BGP, beobachtet über unsere RIPE RIS Kollektoren. Diese Live-Routing-Ansicht kann von der oben genannten Registry-Zuweisung abweichen.

PrefixAnkündigungs-StichprobenZuletzt gesehen
66.193.107.0/24 17,570 2026-09-05 03:35:34
192.26.214.0/24 11,884 2026-09-10 14:07:03
64.210.246.0/24 9,935 2026-09-10 13:50:33
204.146.159.0/24 9,601 2026-09-10 12:50:29
143.199.28.0/24 8,833 2026-09-10 12:50:17
143.199.135.0/24 8,826 2026-09-10 12:50:29
143.199.222.0/24 8,825 2026-09-10 12:51:06
148.59.168.0/24 8,820 2026-09-10 12:50:29
143.199.109.0/24 8,792 2026-09-10 12:50:29
65.121.54.0/24 8,400 2026-09-09 06:55:35
143.199.140.0/23 7,993 2026-09-10 12:50:29
143.199.96.0/24 7,974 2026-09-10 12:51:06
8.18.63.0/24 7,749 2026-09-10 12:49:46
189.125.51.0/24 7,523 2026-09-10 12:05:18
8.44.205.0/24 7,493 2026-09-10 12:49:57
8.20.69.0/24 7,363 2026-09-10 12:50:28
216.163.247.0/24 7,362 2026-09-10 12:50:17
216.163.246.0/24 7,297 2026-09-10 12:50:28
209.164.193.0/24 7,275 2026-09-10 12:50:17
209.164.207.0/24 7,269 2026-09-10 12:50:17
216.163.241.0/24 7,250 2026-09-10 12:50:17
8.25.26.0/24 7,233 2026-09-10 12:51:12
209.164.205.0/24 7,232 2026-09-10 12:50:17
216.163.244.0/24 7,232 2026-09-10 12:51:12
209.164.204.0/24 7,228 2026-09-10 12:50:28
216.163.240.0/24 7,225 2026-09-10 12:50:28
216.163.243.0/24 7,222 2026-09-10 12:50:17
209.164.195.0/24 7,221 2026-09-10 12:50:17
216.163.242.0/24 7,220 2026-09-10 12:50:28
209.164.194.0/24 7,218 2026-09-10 12:50:28
216.163.245.0/24 7,203 2026-09-10 12:51:06
209.164.192.0/24 7,191 2026-09-10 12:50:28
143.199.145.0/24 7,102 2026-09-10 14:02:31
8.15.229.0/24 7,049 2026-09-10 12:49:47
216.33.160.0/24 6,991 2026-09-10 13:50:33
216.163.252.0/24 6,866 2026-09-10 12:50:28
8.7.155.0/24 6,864 2026-09-10 12:49:47
216.163.253.0/24 6,818 2026-09-10 12:50:17
209.164.223.0/24 6,812 2026-09-10 12:50:17
216.163.251.0/24 6,783 2026-09-10 12:51:06
209.164.209.0/24 6,772 2026-09-10 12:51:06
209.164.211.0/24 6,770 2026-09-10 12:50:17
209.164.208.0/24 6,769 2026-09-10 12:49:54
216.163.255.0/24 6,767 2026-09-10 12:50:17
216.163.250.0/24 6,765 2026-09-10 12:49:54
209.164.220.0/24 6,763 2026-09-10 12:49:54
216.163.249.0/24 6,762 2026-09-10 12:50:17
209.164.221.0/24 6,756 2026-09-10 12:51:06
216.163.248.0/24 6,750 2026-09-10 12:50:28
216.163.254.0/24 6,744 2026-09-10 12:50:28

Zeige Top 50 of 279 angekündigte Präfixe nach Stichprobenvolumen.

Frequently Asked Questions

Was ist AS203?

AS203 ist eine Autonomous System Number, die Level 3 Parent, LLC zugewiesen ist. Eine ASN identifiziert ein Netzwerk, das einen bestimmten Satz von IP-Adressen kontrolliert und bestimmt, wie der Datenverkehr über das Internet via BGP (Border Gateway Protocol) geleitet wird.

Wie viele IP-Adressen kündigt AS203 an?

AS203 kündigt 307.7K IPv4-Adressen an, verteilt auf 104 geroutete CIDR-Präfixe. Das Netzwerk ist in United States registriert.

Wer betreibt AS203?

AS203 wird von Level 3 Parent, LLC betrieben. Die Organisation hat ihren Sitz in United States. Sie können alle IP-Bereiche und zugehörigen ASNs auf der Organisationsseite einsehen.

In welchem Land ist AS203 registriert?

AS203 ist in United States registriert. Dies gibt an, wo der Netzwerkbetreiber seinen Hauptsitz hat, obwohl die von ihm angekündigten IP-Adressen Benutzer weltweit bedienen können.

Zuletzt aktualisiert: 2026-09-10 14:41:01 UTC
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