Système Autonome

AS174

Cogent Communications, LLC

Cogent Communications, LLC United States 🌐 cogentco.com

IPs annoncées

24,960,507

Préfixes CIDR

9,999

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
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 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

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)
38.196.176.0/24	AS174, AS273844	2026-07-24 03:23:44
38.77.139.0/24	AS174, AS7124	2026-07-24 03:23:44
170.75.160.0/20	AS174, AS394745	2026-07-24 03:23:44
38.147.223.0/24	AS174, AS399353	2026-07-24 03:23:44
38.83.8.0/22	AS174, AS7029	2026-07-24 03:23:44
38.145.124.0/23	AS174, AS395111	2026-07-24 03:23:44
38.156.92.0/24	AS174, AS272137	2026-07-24 03:23:44
38.106.246.0/24	AS174, AS7029	2026-07-24 03:23:44
38.210.65.0/24	AS174, AS273050	2026-07-24 03:23:44
38.147.196.0/24	AS174, AS13536	2026-07-24 03:23:44
38.147.221.0/24	AS174, AS46887	2026-07-24 03:23:44
38.147.205.0/24	AS174, AS13536	2026-07-24 03:23:44
38.147.222.0/24	AS174, AS399353	2026-07-24 03:23:44
38.156.92.0/23	AS174, AS272137	2026-07-24 03:23:44
38.83.202.0/24	AS174, AS56504	2026-07-24 03:23:44

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 31 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 18 ◎ 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	Pennsylvania	Glenside
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	—	—
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	Phoenix
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	Arizona	Phoenix
38.136.0.0/16	65.5K	2.0%	Cogent Communications, LLC	US	New Jersey	Sewell
38.142.0.0/16	65.5K	7.7%	Cogent Communications, LLC	US	Virginia	Arlington
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
38.222.0.0/16	65.5K	0.0%	Cogent Communications, LLC	VE	Falcón	Coro
38.223.0.0/16	65.5K	0.0%	Cogent Communications, LLC	US	—	—
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
38.231.0.0/16	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	Reston
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	Pennsylvania	Fairless Hills
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	—	—
204.240.0.0/16	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	34,594	2026-07-24 02:58:14
208.77.1.0/24	25,161	2026-07-24 02:58:14
103.247.131.0/24	24,376	2026-07-24 02:58:14
154.13.252.0/23	24,139	2026-07-24 02:58:14
154.13.206.0/23	24,114	2026-07-24 02:58:14
154.13.254.0/23	24,108	2026-07-24 02:58:14
154.13.244.0/22	24,091	2026-07-24 02:58:14
161.199.227.0/24	24,074	2026-07-24 02:58:15
69.54.244.0/22	24,072	2026-07-24 02:58:15
185.76.40.0/22	24,043	2026-07-24 02:58:15
154.13.212.0/22	24,027	2026-07-24 02:58:14
154.13.204.0/23	24,021	2026-07-24 02:58:14
140.235.116.0/22	23,955	2026-07-24 02:58:15
154.29.2.0/24	23,955	2026-07-24 03:06:45
154.13.198.0/23	23,941	2026-07-24 02:58:14
154.214.0.0/24	23,920	2026-07-24 02:58:15
154.88.42.0/23	23,912	2026-07-24 02:58:14
154.13.248.0/22	23,887	2026-07-24 02:58:14
154.194.46.0/23	23,877	2026-07-24 02:58:14
154.28.67.0/24	23,862	2026-07-24 02:58:14
69.54.252.0/22	23,855	2026-07-24 02:58:15
64.22.72.0/24	23,848	2026-07-24 02:58:15
154.37.76.0/24	23,843	2026-07-24 02:58:14
175.29.64.0/19	23,842	2026-07-24 02:58:15
154.37.72.0/24	23,795	2026-07-24 02:58:14
204.11.144.0/22	23,748	2026-07-24 02:58:15
154.17.157.0/24	23,742	2026-07-24 02:58:14
154.194.48.0/23	23,725	2026-07-24 02:58:14
170.39.80.0/22	23,723	2026-07-24 02:58:14
64.112.92.0/22	23,678	2026-07-24 02:58:15
154.17.188.0/23	23,645	2026-07-24 02:58:14
208.64.220.0/22	23,628	2026-07-24 02:58:15
38.224.50.0/23	22,052	2026-07-24 02:58:14
154.3.78.0/23	21,943	2026-07-06 17:43:35
65.172.132.0/24	21,068	2026-07-24 02:58:14
103.247.129.0/24	19,021	2026-07-24 02:58:14
198.183.137.0/24	18,548	2026-07-24 02:58:14
198.183.134.0/24	18,511	2026-07-24 02:58:14
198.183.138.0/24	18,493	2026-07-24 02:58:14
172.120.38.0/24	18,262	2026-07-24 02:58:15
209.10.119.0/24	18,016	2026-07-24 02:58:14
45.39.214.0/24	17,915	2026-07-24 02:58:15
207.13.72.0/24	17,889	2026-07-24 02:58:14
95.134.14.0/24	17,844	2026-07-24 02:58:15
173.232.3.0/24	17,812	2026-07-24 02:24:59
70.39.158.0/24	17,694	2026-07-24 02:58:15
66.227.112.0/22	17,691	2026-07-24 02:58:15
96.62.174.0/24	17,688	2026-07-24 02:58:15
65.87.2.0/24	17,688	2026-07-24 02:58:15
96.62.238.0/24	17,663	2026-07-24 02:58:15

Affichage des meilleurs 50 of 5,064 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 24.96M adresses IPv4 réparties sur 9,999 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 : 2026-07-24 03:25:31 UTC