Système Autonome

AS174

Cogent Communications, LLC

Cogent Communications, LLC United States 🌐 cogentco.com

IPs annoncées

25,236,732

Préfixes CIDR

10,463

ASN

AS174

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 Cogent Communications

Cogent Communications Holdings, Inc. is a multinational internet service provider based in the United States.

Founded

1999

Headquarters

Washington, D.C.

Industry

telecommunications industry

Official website ↗ Summary from Wikipedia, CC BY-SA 4.0 · Data from Wikidata

⚠ 100+ Préfixe MOASes — plusieurs ASN d'origine détectés

Toutes les anomalies MOAS →

Un préfixe auparavant stable, originaire de l'AS174 est maintenant également annoncé par un autre ASN (MOAS — Multiple-Origin AS), détecté par nos collecteurs RIPE RIS. Souvent bénin (anycast, multi-homing, ou un transfert récent) — mais cela peut signaler une fuite de route ou un détournement de préfixe, il est donc utile de l'inspecter.

Préfixe	ASN d'origine	Dernière détection (UTC)
82.129.27.0/24	AS174, AS209152	2026-09-10 16:40:46
38.105.3.0/24	AS174, AS999, AS1031	2026-09-10 16:40:46
38.46.10.0/24	AS174, AS9294	2026-09-10 16:40:46
154.30.154.0/24	AS174, AS395111	2026-09-10 16:40:46
206.62.97.0/24	AS174, AS272843	2026-09-10 16:40:46
38.9.211.0/24	AS174, AS273755	2026-09-10 16:40:46
149.86.0.0/18	AS174, AS201838	2026-09-10 16:40:46
66.102.123.0/24	AS174, AS150671	2026-09-10 16:40:46
38.19.237.0/24	AS174, AS153963	2026-09-10 16:40:46
38.45.217.0/24	AS174, AS401944	2026-09-10 16:40:46
38.211.252.0/24	AS174, AS263966	2026-09-10 16:40:46
66.102.125.0/24	AS174, AS150671	2026-09-10 16:40:46
38.72.159.0/24	AS174, AS395111	2026-09-10 16:40:46
38.91.112.0/24	AS174, AS9294	2026-09-10 16:40:46
38.45.216.0/24	AS174, AS401944	2026-09-10 16:40:46

Affichage des 15 plus récemment détectés parmi 100+ préfixes MOAS. De nombreux préfixes multi-origines sur de grands réseaux sont bénins (anycast) ; voir toutes les anomalies MOAS.

Network profile

Source: PeeringDB →

Network type NSP

Traffic level 100+Tbps

Geographic scope Global

Peering policy No

Website ↗ Looking glass ↗

Web3 footprint

AS174 hosts 29 observed decentralized-network nodes across 3 networks. It’s a neutral signal — it does not affect the reputation score. See the full web3 node map.

IPFS IPFS 16 ◎ Solana 10 FIL Filecoin 3

AS174 — empreinte IP mondiale

Villes où l'AS174 a une allocation IPv4 mesurable. Cliquez sur n'importe quel point pour ouvrir la page de cette ville. La taille et la couleur varient en fonction du nombre d'IP.

Voir sur le globe 3D →

Principales plages CIDR

CIDR	IPs	PTR Density	Organisation	Pays	State	City
38.216.0.0/13	524.3K	2.3%	Cogent Communications, LLC	US	—	—
38.216.0.0/14	262.1K	2.2%	Cogent Communications, LLC	US	Maryland	Mount Airy
38.232.0.0/14	262.1K	0.1%	Cogent Communications, LLC	US	California	Torrance
149.92.0.0/14	262.1K	0.0%	Cogent Communications, LLC	US	—	—
204.204.0.0/14	262.1K	0.0%	Cogent Communications, LLC	US	—	—
206.4.0.0/14	262.1K	2.1%	Cogent Communications, LLC	US	—	—
38.0.0.0/15	131.1K	0.5%	Cogent Communications, LLC	US	Texas	Alvin
38.4.0.0/15	131.1K	0.3%	Cogent Communications, LLC	US	California	San Jose
38.36.0.0/15	131.1K	1.0%	Cogent Communications, LLC	US	—	—
38.138.0.0/15	131.1K	1.0%	Cogent Communications, LLC	US	New York	New York
38.152.0.0/15	131.1K	14.5%	Cogent Communications, LLC	US	California	Los Angeles
38.160.0.0/15	131.1K	1.9%	Cogent Communications, LLC	US	New York	New York
38.184.0.0/15	131.1K	3.6%	Cogent Communications, LLC	US	California	Los Angeles
38.214.0.0/15	131.1K	0.7%	Cogent Communications, LLC	US	—	—
38.222.0.0/15	131.1K	2.0%	Cogent Communications, LLC	US	—	—
38.230.0.0/15	131.1K	0.0%	Cogent Communications, LLC	US	—	—
38.238.0.0/15	131.1K	0.0%	DXTL Tseung Kwan O Service	US	—	—
149.66.0.0/15	131.1K	0.0%	Cogent Communications, LLC	US	—	—
154.24.0.0/15	131.1K	10.1%	Cogent Communications, LLC	US	Stockholm County	Stockholm
38.5.0.0/16	65.5K	0.7%	Cogent Communications, LLC	US	Kansas	Olathe
38.8.0.0/16	65.5K	0.0%	Cogent Communications, LLC	US	—	—
38.16.0.0/16	65.5K	0.0%	Cogent Communications, LLC	US	Idaho	Idaho Falls
38.24.0.0/16	65.5K	0.1%	Cogent Communications, LLC	US	California	Los Angeles
38.26.0.0/16	65.5K	0.0%	Cogent Communications, LLC	US	—	—
38.32.0.0/16	65.5K	4.3%	Cogent Communications, LLC	US	—	—
38.104.0.0/16	65.5K	22.5%	Cogent Communications, LLC	US	Arizona	Scottsdale
38.120.0.0/16	65.5K	0.7%	Cogent Communications, LLC	US	District of Columbia	Washington
38.122.0.0/16	65.5K	12.5%	Cogent Communications, LLC	US	Texas	Houston
38.136.0.0/16	65.5K	2.0%	Cogent Communications, LLC	US	Pennsylvania	Merion
38.142.0.0/16	65.5K	7.7%	Cogent Communications, LLC	US	—	—
38.144.0.0/16	65.5K	0.2%	Cogent Communications, LLC	US	—	—
38.149.0.0/16	65.5K	2.1%	Cogent Communications, LLC	US	New York	The Bronx
38.151.0.0/16	65.5K	4.8%	Cogent Communications, LLC	US	Florida	Palm Beach Gardens
38.157.0.0/16	65.5K	1.7%	Cogent Communications, LLC	US	—	—
38.163.0.0/16	65.5K	2.9%	Cogent Communications, LLC	US	—	—
38.164.0.0/16	65.5K	0.0%	Cogent Communications, LLC	US	Pennsylvania	Morrisville
38.167.0.0/16	65.5K	0.8%	Cogent Communications, LLC	US	—	—
38.168.0.0/16	65.5K	1.8%	Cogent Communications, LLC	US	—	—
38.170.0.0/16	65.5K	15.4%	Cogent Communications, LLC	US	—	—
38.176.0.0/16	65.5K	1.6%	Cogent Communications, LLC	US	Virginia	Sterling
38.193.0.0/16	65.5K	17.8%	Cogent Communications, LLC	US	—	—
38.195.0.0/16	65.5K	6.7%	Cogent Communications, LLC	US	Illinois	Chicago
38.197.0.0/16	65.5K	1.2%	Cogent Communications, LLC	US	Illinois	Chicago
38.198.0.0/16	65.5K	0.6%	Cogent Communications, LLC	US	Wisconsin	Milwaukee
38.208.0.0/16	65.5K	1.5%	Cogent Communications, LLC	US	—	—
38.220.0.0/16	65.5K	1.9%	Cogent Communications, LLC	US	Florida	Palm Beach Gardens
38.227.0.0/16	65.5K	0.0%	Cogent Communications, LLC	US	New Jersey	Totowa
38.228.0.0/16	65.5K	0.0%	Cogent Communications, LLC	US	Massachusetts	Boston
38.238.0.0/16	65.5K	0.0%	Cogent Communications, LLC	US	—	—
38.241.0.0/16	65.5K	0.1%	Cogent Communications, LLC	US	Illinois	Evanston
38.245.0.0/16	65.5K	0.4%	Cogent Communications, LLC	US	Texas	Dallas
38.249.0.0/16	65.5K	0.0%	Cogent Communications, LLC	US	—	—
38.251.0.0/16	65.5K	0.4%	Cogent Communications, LLC	US	New York	New York
66.247.0.0/16	65.5K	0.0%	Cogent Communications, LLC	US	—	—
128.145.0.0/16	65.5K	0.0%	Cogent Communications, LLC	US	—	—
136.161.0.0/16	65.5K	0.0%	Cogent Communications, LLC	US	—	—
143.240.0.0/16	65.5K	0.0%	Cogent Communications, LLC	US	—	—
144.228.0.0/16	65.5K	3.4%	Cogent Communications, LLC	US	Virginia	Yorktown
144.232.0.0/16	65.5K	7.0%	Cogent Communications, LLC	US	Pennsylvania	Harrisburg
148.254.0.0/16	65.5K	0.0%	Cogent Communications, LLC	US	—	—
149.9.0.0/16	65.5K	0.0%	Cogent Communications, LLC	US	—	—
149.11.0.0/16	65.5K	6.0%	Cogent Communications, LLC	US	—	—
149.16.0.0/16	65.5K	0.0%	Cogent Communications, LLC	US	—	—
149.29.0.0/16	65.5K	1.3%	Cogent Communications, LLC	US	—	—
149.35.0.0/16	65.5K	0.0%	Cogent Communications, LLC	US	—	—
149.38.0.0/16	65.5K	0.1%	Cogent Communications, LLC	US	—	—
149.53.0.0/16	65.5K	0.0%	Cogent Communications, LLC	US	—	—
149.85.0.0/16	65.5K	0.0%	Cogent Communications, LLC	US	New Jersey	Clifton
149.123.0.0/16	65.5K	0.0%	Cogent Communications, LLC	US	—	—
149.127.0.0/16	65.5K	0.1%	Cogent Communications, LLC	US	Virginia	Falls Church
156.46.0.0/16	65.5K	7.0%	Cogent Communications, LLC	US	—	—
160.81.0.0/16	65.5K	1.7%	Cogent Communications, LLC	US	New Jersey	Clifton
167.141.0.0/16	65.5K	0.4%	Cogent Communications, LLC	US	—	—
199.100.0.0/16	65.5K	1.1%	Cogent Communications, LLC	US	—	—
204.5.0.0/16	65.5K	1.7%	Cogent Communications, LLC	US	—	—
204.7.0.0/16	65.5K	1.5%	Cogent Communications, LLC	US	—	—
204.183.0.0/16	65.5K	0.0%	Cogent Communications, LLC	US	Virginia	Ashburn
204.240.0.0/16	65.5K	0.0%	Cogent Communications, LLC	US	—	—
204.243.0.0/16	65.5K	1.6%	Cogent Communications, LLC	US	—	—
205.199.0.0/16	65.5K	0.0%	Cogent Communications, LLC	US	—	—
206.2.0.0/16	65.5K	13.1%	Cogent Communications, LLC	US	—	—
206.149.0.0/16	65.5K	24.5%	Cogent Communications, LLC	US	—	—
206.233.0.0/16	65.5K	1.7%	Cogent Communications, LLC	US	—	—
206.234.0.0/16	65.5K	1.1%	Cogent Communications, LLC	US	—	—
206.236.0.0/16	65.5K	0.4%	Cogent Communications, LLC	US	—	—
206.249.0.0/16	65.5K	0.2%	Cogent Communications, LLC	US	—	—
206.250.0.0/16	65.5K	0.0%	Cogent Communications, LLC	US	—	—
207.142.0.0/16	65.5K	0.6%	Cogent Communications, LLC	US	Florida	Miami
208.35.0.0/16	65.5K	0.0%	Cogent Communications, LLC	US	Colorado	Parker
38.4.128.0/17	32.8K	0.0%	Cogent Communications, LLC	US	—	—
38.5.128.0/17	32.8K	0.0%	Cogent Communications, LLC	US	—	—
38.26.128.0/17	32.8K	0.0%	Cogent Communications, LLC	US	—	—
38.30.0.0/17	32.8K	0.3%	Cogent Communications, LLC	US	New York	New York
38.31.128.0/17	32.8K	0.0%	Cogent Communications, LLC	US	—	—
38.40.128.0/17	32.8K	0.0%	Cogent Communications, LLC	US	—	—
38.53.0.0/17	32.8K	0.0%	Cogent Communications, LLC	US	—	—
38.54.128.0/17	32.8K	0.0%	Cogent Communications, LLC	US	—	—
38.63.0.0/17	32.8K	0.0%	Cogent Communications, LLC	US	—	—
38.71.128.0/17	32.8K	0.0%	Cogent Communications, LLC	US	Illinois	Elk Grove Village
38.73.0.0/17	32.8K	3.9%	Cogent Communications, LLC	US	California	San Jose

Préfixes BGP annoncés

Anomalies BGP en direct →

Préfixes AS174 provient réellement du BGP, observé par nos collecteurs RIPE RIS. Cette vue de routage en direct peut différer de l'allocation de registre ci-dessus.

Prefix	Échantillons d'annonce	Dernière vue
208.4.159.0/24	47,335	2026-09-10 16:42:49
69.54.244.0/22	44,664	2026-09-10 16:43:37
154.13.252.0/23	44,619	2026-09-10 16:43:37
154.13.254.0/23	44,598	2026-09-10 16:43:37
154.13.244.0/22	44,591	2026-09-10 16:43:37
154.13.206.0/23	44,550	2026-09-10 16:43:37
161.199.227.0/24	44,532	2026-09-10 16:43:37
185.76.40.0/22	44,507	2026-09-10 16:43:37
154.13.212.0/22	44,460	2026-09-10 16:43:37
140.235.116.0/22	44,459	2026-09-10 16:43:37
154.13.204.0/23	44,451	2026-09-10 16:43:37
69.54.252.0/22	44,448	2026-09-10 16:43:37
64.22.72.0/24	44,442	2026-09-10 16:43:37
175.29.64.0/19	44,401	2026-09-10 16:43:37
154.29.2.0/24	44,400	2026-09-10 16:43:37
154.13.248.0/22	44,376	2026-09-10 16:43:37
154.13.198.0/23	44,374	2026-09-10 16:43:37
154.214.0.0/24	44,366	2026-09-10 16:43:37
154.88.42.0/23	44,341	2026-09-10 16:43:37
154.28.67.0/24	44,316	2026-09-10 16:43:37
154.37.76.0/24	44,280	2026-09-10 16:43:37
64.112.92.0/22	44,262	2026-09-10 16:43:37
154.37.72.0/24	44,222	2026-09-10 16:43:37
204.11.144.0/22	44,204	2026-09-10 16:43:37
170.39.80.0/22	44,195	2026-09-10 16:43:37
154.17.157.0/24	44,173	2026-09-10 16:43:37
154.194.48.0/23	44,160	2026-09-10 16:43:37
154.17.188.0/23	44,092	2026-09-10 16:43:37
208.64.220.0/22	44,073	2026-09-10 16:43:37
65.172.132.0/24	41,676	2026-09-10 16:43:37
154.13.14.0/23	38,757	2026-09-10 16:43:37
154.3.225.0/24	38,645	2026-09-10 16:43:37
209.10.119.0/24	38,363	2026-09-10 16:43:37
65.110.42.0/24	37,446	2026-09-10 16:43:37
69.33.141.0/24	37,425	2026-09-10 16:43:37
69.33.137.0/24	37,322	2026-09-10 16:43:37
69.33.142.0/24	37,312	2026-09-10 16:43:37
69.33.143.0/24	37,302	2026-09-10 16:43:37
69.33.139.0/24	37,293	2026-09-10 16:43:37
72.14.157.0/24	37,273	2026-09-10 16:43:37
64.204.178.0/24	37,270	2026-09-10 16:43:37
69.33.138.0/24	37,268	2026-09-10 16:43:37
69.33.148.0/24	37,267	2026-09-10 16:43:37
64.40.152.0/24	37,261	2026-09-10 16:43:37
104.234.12.0/24	37,233	2026-09-10 16:43:37
50.114.38.0/23	37,219	2026-09-10 16:43:37
104.234.162.0/23	37,199	2026-09-10 16:43:37
92.113.71.0/24	37,185	2026-09-10 16:43:37
45.133.76.0/22	37,176	2026-09-10 16:43:37
92.113.160.0/24	37,172	2026-09-10 16:43:37

Affichage des meilleurs 50 of 5,670 préfixes annoncés par volume d'échantillons.

Frequently Asked Questions

Qu'est-ce que l'AS174 ?

L'AS174 est un numéro de système autonome attribué à Cogent Communications, LLC. Un ASN identifie un réseau qui contrôle un ensemble spécifique d'adresses IP et détermine comment le trafic est acheminé sur internet via BGP (Border Gateway Protocol).

Combien d'adresses IP l'AS174 annonce-t-il ?

L'AS174 annonce 25.24M adresses IPv4 réparties sur 10,463 préfixes CIDR routés. Le réseau est enregistré en United States.

Qui opère l'AS174 ?

L'AS174 est opéré par Cogent Communications, LLC. L'organisation est basée en United States. Vous pouvez consulter toutes les plages IP et les ASN associés sur la page de l'organisation.

Dans quel pays l'AS174 est-il enregistré ?

L'AS174 est enregistré en United States. Cela indique où le siège de l'opérateur de réseau est situé, bien que les adresses IP qu'il annonce puissent servir des utilisateurs dans le monde entier.

Dernière mise à jour : 2026-09-10 16:39:05 UTC