Check-Host.cc

Autonomous System

AS174 · Cogent Communications, Inc.

Aggregated from public BGP, CT logs, our scan layer, honeypots and global probes.

Announced IPs
38.47M
IPv4
IPv4 Prefixes
6,152
IPv6 Prefixes
454
Hosted Domains
731k
resolve into this AS
Peers
109
Customers
6,730

AS Profile

AS Name
Cogent Communications, Inc.
AS Type
NSP
Scope
Global
Traffic
100+Tbps
RIR
ARIN
Country
US
Allocated
1996-05-16

RPKI Validity

Total ROAs
11,952
Valid Prefixes
629
NotFound
5,977
Announced (BGP)
6,606
RPKI Coverage
9.5%

Geographic Footprint

Countries where this AS's scanned IPs are geolocated, by open-IP count.

US
561,512
HK
80,919
CA
37,356
FR
28,774
GB
16,247
BR
14,782
JP
12,578
PE
11,036
AR
9,546
NL
9,326
DE
8,728
MX
8,485

Top Open Ports

Most common open ports across IPs in this AS (last 30 days).

Port Open IPs
80 45,371
443 36,960
22 21,296
2000 15,770
888 10,967
7547 10,253
60000 8,948
40000 8,744
9100 7,446
21 6,810
179 6,732
8888 5,834
8080 5,795
7777 5,717
5555 5,352

Upstreams

Tier-1 / transit-free network

CAIDA AS-Relationships sees no upstream transit provider for this ASN — either a tier-1 carrier, a settlement-free routing arrangement, or an ASN that peers privately. Tier-1s like AS174, AS3356, AS6939 also show empty here.