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Autonomes System

AS203

Level 3 Parent, LLC

Angezeigte IPs
171,520
CIDR-Präfixe
73
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
  • Multiple-origin (MOAS) routing anomaly −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

⚠ 22 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)
216.33.160.0/24 AS203, AS3561, AS10753 2026-07-24 06:23:45
204.17.219.0/24 AS203, AS23015 2026-07-24 06:23:45
63.144.218.0/24 AS203, AS22587 2026-07-24 06:23:45
205.140.226.0/24 AS203, AS3356 2026-07-24 06:23:45
63.150.74.0/23 AS203, AS22587 2026-07-24 06:23:45
170.46.132.0/23 AS203, AS18697 2026-07-24 06:23:45
170.46.162.0/24 AS203, AS18697 2026-07-24 06:23:45
170.46.0.0/16 AS203, AS18697 2026-07-24 06:23:45
65.222.131.0/24 AS203, AS46909 2026-07-24 06:23:45
65.240.184.0/23 AS203, AS22587 2026-07-24 06:23:45
170.46.200.0/24 AS203, AS18697 2026-07-24 06:23:45
205.166.171.0/24 AS203, AS26845 2026-07-24 06:23:45
170.46.150.0/24 AS203, AS18697 2026-07-24 06:23:45
63.106.6.0/24 AS203, AS22587 2026-07-24 06:23:45
216.114.73.0/24 AS203, AS400494 2026-07-24 06:23:45

Zeige die 15 zuletzt erkannten von 22 MOAS-Präfixen. Viele Multi-Origin-Präfixe in großen Netzwerken sind harmlos (Anycast); siehe alle MOAS-Anomalien.

Top CIDR-Bereiche

CIDRIPsPTR DensityOrganisationLandStateCity
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
161.209.192.0/19 8.2K
0.0%
Level 3 Parent, LLC US California South Gate
161.209.96.0/20 4.1K
0.0%
Level 3 Parent, LLC US
216.163.240.0/20 4.1K
5.2%
Level 3 Parent, LLC US New Jersey Chatham
161.209.96.0/21 2.0K
0.0%
Level 3 Parent, LLC 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
205.139.104.0/22 1.0K
2.7%
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
143.199.140.0/23 512
0.0%
Level 3 Parent, LLC US
170.46.132.0/23 512
0.0%
Level 3 Parent, LLC US
204.153.154.0/23 512
2.1%
Level 3 Parent, LLC US Arizona Chandler
205.139.102.0/23 512
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
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 New Jersey Cherry Hill
66.193.107.0/24 256
0.0%
Level 3 Parent, LLC US
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 District of Columbia Washington
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
170.46.10.0/24 256
0.0%
Level 3 Parent, LLC US
170.46.150.0/24 256
0.0%
Level 3 Parent, LLC US
170.46.155.0/24 256
0.0%
Level 3 Parent, LLC US
170.46.162.0/24 256
0.0%
Level 3 Parent, LLC US
170.46.200.0/24 256
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
204.146.159.0/24 256
0.0%
Level 3 Parent, LLC US
204.164.72.0/24 256
7.4%
Level 3 Parent, LLC US
205.139.108.0/24 256
0.0%
Level 3 Parent, LLC US
206.79.6.0/24 256
0.0%
Level 3 Parent, LLC US
206.169.67.0/24 256
0.0%
Level 3 Parent, LLC US
209.164.207.0/24 256
0.4%
Level 3 Parent, LLC US
209.164.211.0/24 256
0.0%
Level 3 Parent, LLC US
209.164.223.0/24 256
0.8%
Level 3 Parent, LLC US
216.32.151.0/24 256
0.4%
Level 3 Parent, LLC US
216.33.160.0/24 256
5.1%
Level 3 Parent, LLC US
216.114.73.0/24 256
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
204.146.159.0/24 7,736 2026-07-24 06:05:40
143.199.135.0/24 6,309 2026-07-24 06:06:05
143.199.28.0/24 6,308 2026-07-24 06:06:05
192.26.214.0/24 6,305 2026-07-24 06:05:50
143.199.222.0/24 6,292 2026-07-24 06:06:05
143.199.109.0/24 6,290 2026-07-24 06:06:05
148.59.168.0/24 6,198 2026-07-24 06:06:05
8.41.218.0/24 5,931 2026-05-31 02:33:00
143.199.140.0/23 5,585 2026-07-24 06:06:05
143.199.96.0/24 5,580 2026-07-24 06:06:05
161.7.38.0/24 5,378 2026-06-04 15:43:25
161.7.129.0/24 5,347 2026-06-04 15:43:25
143.199.145.0/24 4,971 2026-07-24 06:06:05
8.18.63.0/24 4,812 2026-07-24 06:05:35
8.44.205.0/24 4,630 2026-07-24 06:05:35
8.20.69.0/24 4,498 2026-07-24 06:05:35
8.25.26.0/24 4,481 2026-07-24 06:05:35
8.15.229.0/24 4,315 2026-07-24 06:05:35
165.193.54.0/23 4,309 2026-06-03 22:36:21
205.139.32.0/23 4,295 2026-06-03 22:36:21
189.125.51.0/24 4,294 2026-07-24 06:05:40
8.7.155.0/24 4,176 2026-07-24 06:05:35
212.26.53.0/24 4,092 2026-07-13 06:46:21
50.58.252.0/24 3,953 2026-07-24 04:26:03
205.166.171.0/24 3,926 2026-07-24 02:57:04
38.107.240.0/24 3,870 2026-07-24 06:05:40
62.67.222.0/24 3,767 2026-07-24 06:05:40
64.241.121.0/24 3,679 2026-07-24 06:05:40
64.241.120.0/24 3,647 2026-07-24 06:05:40
128.177.179.0/24 3,632 2026-07-24 06:06:03
64.208.127.0/24 3,615 2026-07-24 06:05:40
156.42.224.0/19 3,601 2026-07-24 06:05:40
161.209.96.0/20 3,598 2026-07-24 06:05:40
161.209.100.0/24 3,590 2026-07-24 06:05:40
63.128.1.0/24 3,590 2026-07-24 06:05:40
63.128.14.0/24 3,589 2026-07-24 06:05:40
63.128.24.0/24 3,586 2026-07-24 06:05:40
63.128.0.0/22 3,584 2026-07-24 06:05:40
161.209.225.0/24 3,583 2026-07-24 06:05:40
63.128.12.0/24 3,579 2026-07-24 06:05:40
161.209.192.0/19 3,578 2026-07-24 06:05:40
156.42.64.0/19 3,576 2026-07-24 06:05:40
63.128.7.0/24 3,575 2026-07-24 06:05:40
64.209.141.0/24 3,574 2026-07-24 06:05:40
156.42.160.0/19 3,573 2026-07-24 06:05:40
64.22.148.0/24 3,568 2026-07-24 06:05:40
161.209.97.0/24 3,568 2026-07-24 06:05:40
158.120.127.0/24 3,568 2026-07-24 06:05:40
161.209.103.0/24 3,567 2026-07-24 06:05:40
161.209.96.0/24 3,566 2026-07-24 06:05:40

Zeige Top 50 of 207 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 171.5K IPv4-Adressen an, verteilt auf 73 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: 2026-07-24 06:25:33 UTC
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