AS174

Name: AS174 — Cogent Communications, LLC
Creator: ipdex

Cogent Communications, LLC ISP registered in United States

2,420IPv4 prefixes

65IPv6 prefixes

21%RPKI-valid

#4AS Rank

328/328RIS visibility

#10Rank in United States

1996-05-16Allocated

Cogent Communications, LLC (AS174) — ISP, registered in United States. announces 2,420 IPv4 prefixes + 65 IPv6 prefixes. Rank in United States: #10. Allocated: 1996-05-16.

IPv4 2,420IPv6 65

Announced prefixes · 2,485

v4 38.133.186.0/24 unknown
v4 38.134.151.0/24 unknown
v4 38.135.184.0/22 unknown
v4 38.135.184.0/24 unknown
v4 38.135.185.0/24 unknown
v4 38.135.186.0/24 unknown
v4 38.135.187.0/24 unknown
v4 38.137.168.0/21 unknown
v4 38.143.240.0/24 unknown
v4 38.143.241.0/24 unknown
v4 38.143.242.0/24 unknown
v4 38.143.243.0/24 unknown
v4 38.143.244.0/24 unknown
v4 38.143.245.0/24 unknown
v4 38.143.246.0/24 unknown
v4 38.143.247.0/24 unknown
v4 38.145.100.0/23 unknown
v4 38.145.100.0/24 unknown
v4 38.145.101.0/24 unknown
v4 38.145.124.0/23 unknown
v4 38.145.124.0/24 unknown
v4 38.145.125.0/24 unknown
v4 38.147.13.0/24 unknown
v4 38.150.0.0/24 unknown
v4 38.150.1.0/24 unknown
v4 38.150.2.0/24 unknown
v4 38.150.3.0/24 unknown
v4 38.150.4.0/24 unknown
v4 38.150.5.0/24 unknown
v4 38.150.6.0/24 unknown
v4 38.150.7.0/24 unknown
v4 38.156.240.0/23 unknown
v4 38.156.240.0/24 unknown
v4 38.156.241.0/24 unknown
v4 38.156.242.0/23 unknown
v4 38.156.242.0/24 unknown
v4 38.156.243.0/24 unknown
v4 38.156.69.0/24 unknown
v4 38.156.78.0/23 unknown
v4 38.156.78.0/24 unknown
v4 38.156.79.0/24 unknown
v4 38.159.164.0/24 unknown
v4 38.159.176.0/24 unknown
v4 38.159.182.0/24 unknown
v4 38.159.229.0/24 unknown
v4 38.172.200.0/24 unknown
v4 38.172.214.0/24 unknown
v4 38.172.215.0/24 unknown
v4 38.177.0.0/24 unknown
v4 38.177.1.0/24 unknown

RPKI: rpki.cloudflare.com · 2026-06-22

Routing: 4,156 IPv4 · 514 IPv6 announced · RIS visibility 328/328 RIS peers · RIPEstat · 2026-06-22

Prefix history

Announced prefixes Source: ipdex daily snapshot · sparse rows, value holds until the next change (steps)

Data table

Day	Announced prefixes
2026-06-12	2435
2026-06-13	2435
2026-06-14	2435
2026-06-16	2426
2026-06-17	2492
2026-06-19	2500
2026-06-20	2484
2026-06-21	2485
2026-06-22	2485

Facilities · 818

818 Facilities · 45 Countries

1-Net East Singapore
1025Connect Westbury
123.NET - DC1 - 24700 Northwestern Hwy. Southfield
1500 Champa Denver
1530 SWIFT - NOCIX North Kansas City
2Connect DC10 Budapest
365 Data Centers Chicago (CH6) Chicago
365 Data Centers Detroit (DT1) Southfield
365 Data Centers New York (NY10) New York
365 Data Centers Philadelphia (PH2) Philadelphia
4 Data Center Katowice
43915 Devin Shafron Ashburn
75 Broad Street New York
AINET - Beltsville Beltsville
ANS - MAN4 Manchester
ANS - MAN5 Manchester
ANS - MAN6 Manchester
AT TOKYO (CC1/CC2) Tokyo
ATMAN Data Center Warsaw-2 (WAW-2, Konstruktorska 5) Warsaw
Adam - MAD Alcalá de Henares
Africa Data Centres, Johannesburg JHB1, South Africa Midrand
AiNET MD-300L Baltimore
AiNET WDC11 Laurel
Aligned Dallas (DFW-01) Plano
Aligned Phoenix (PHX-01) Phoenix

+793

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AS174

Announced prefixes · 2,485

Prefix history

Facilities · 818

AS topology · Customer cone 40,552

Peers · 93

Customers · 6,580

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