AS174 Cogent Communications, LLC 🇺🇸 US

Announcing 4,424 prefixes, seen at the RIS collectors.

IPv4 prefixes
3,892
37,709,824 (147,304 × /24)
IPv6 prefixes
532
58 × /32
Upstreams
88
transit providers observed
Peers
22
settlement-free adjacencies
Downstreams
6,456
transit customers observed
Customer cone
67,488
ASes reachable through it

Registry and operator data

AS number
AS174
Name
Cogent Communications, LLC
Organisation
Cogent Communications, Inc.
Country
🇺🇸 US
RIR
ARIN
Allocated
1996-05-16
Network type
NSP
Traffic levels
100+Tbps
Scope
Global
Peering policy
No
PeeringDB
net/267
Facilities
816

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

371 valid (8.4%) 71 invalid (1.6%) 3,982 no ROA (90.0%)

Announced prefixes

532 in total

Prefix RPKI Peers Sample path First seen
2001:550::/32 v6 no ROA 31 34549174 2026-09-18
2001:550:1:c::/64 v6 no ROA 4 20205174 2026-09-18
2001:550:1:100::/56 v6 no ROA 4 20205174 2026-09-18
2001:550:1:300::/64 v6 no ROA 4 20205174 2026-09-18
2001:550:1:301::/64 v6 no ROA 4 20205174 2026-09-18
2001:550:1:304::/64 v6 no ROA 4 20205174 2026-09-18
2001:550:100:8::/64 v6 no ROA 4 20205174 2026-09-18
2001:550:100:9::/64 v6 no ROA 4 20205174 2026-09-20
2001:550:104::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:107::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:108::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:201::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:202::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:203::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:204::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:205::/48 v6 no ROA 9 37721174 2026-10-15
2001:550:206::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:209::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:20a::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:20b::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:302::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:303::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:304::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:306::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:307::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:308::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:309::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:30c::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:30d::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:402::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:403::/48 v6 no ROA 8 37721174 2026-11-02
2001:550:407::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:408::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:40a::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:40b::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:40c::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:40e::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:40f::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:410::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:412::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:602::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:606::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:702::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:800:2::/64 v6 no ROA 4 20205174 2026-09-18
2001:550:800:100::/56 v6 no ROA 4 20205174 2026-09-18
2001:550:801::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:802::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:803::/51 v6 no ROA 4 20205174 2026-09-18
2001:550:803:2000::/51 v6 no ROA 4 20205174 2026-09-18
2001:550:803:6000::/51 v6 no ROA 4 20205174 2026-09-18
2001:550:804::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:805::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:905::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:906::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:908::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:909::/48 v6 no ROA 9 37721174 2026-11-01
2001:550:90b::/48 v6 no ROA 9 37721174 2026-10-01
2001:550:911::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:912::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:913::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:a00::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:a02::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:a04::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:a06::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:a07::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:a09::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:a0a::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:a0b::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:a0c::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:a0d::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:a0e::/49 v6 no ROA 4 20205174 2026-09-18
2001:550:a0e:8000::/49 v6 no ROA 4 20205174 2026-09-18
2001:550:a0f::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:a10::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:a11::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:a12::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:a13::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:a15::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:a16::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:a19::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:a1a::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:a1b::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:a1c::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:a1d::/48 v6 no ROA 9 37721174 2026-10-14
2001:550:a20::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:a21::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:a22::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:a23::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:a24::/48 v6 no ROA 1 33331257174 2026-09-18
2001:550:a25::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:a26::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:a28::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:a29::/48 v6 no ROA 9 37721174 2026-10-08
2001:550:a2a::/48 v6 no ROA 9 37721174 2026-10-08
2001:550:a2b::/48 v6 no ROA 9 37721174 2026-10-17
2001:550:a2c::/48 v6 no ROA 9 37721174 2026-10-31
2001:550:b01::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:c01::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:c02::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:c03::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:c04::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:c05::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:c07::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:d00::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:d02::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:d04::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:d08::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:e02::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:e05::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:f00::/48 v6 no ROA 9 37721174 2026-10-12
2001:550:f02::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:1100::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:1200:3::/64 v6 no ROA 4 20205174 2026-09-18
2001:550:1202::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:1202:1::/64 v6 no ROA 4 20205174 2026-09-18
2001:550:1204::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:1205::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:1207::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:1208::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:120b::/48 v6 no ROA 9 37721174 2026-10-13
2001:550:1303::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:1304::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:1305::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:1401::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:1504::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:1505::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:1506::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:1507::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:1508::/48 v6 no ROA 9 37721174 2026-10-31
2001:550:1602:1::/64 v6 no ROA 4 20205174 2026-09-18
2001:550:1602:2::/64 v6 no ROA 4 20205174 2026-09-18
2001:550:1606::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:1607::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:1609::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:160a::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:1700::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:1801::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:1802::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:1804::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:1805::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:1807::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:1900:1::/64 v6 no ROA 4 20205174 2026-09-18
2001:550:1901::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:1905::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:1b00::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:1b05::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:1b06::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:1b07::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:1b08::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:1b09::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:1b0b::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:1d01::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:1d02::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:1d03::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:1d04::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:1d09::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:1d0e::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:1e00::/64 v6 no ROA 4 20205174 2026-09-18
2001:550:1e01::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:2006::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:2007::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:2008::/48 v6 no ROA 9 37721174 2026-10-14
2001:550:2101::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:2103::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:2108::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:2109::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:2200::/48 v6 no ROA 9 37721174 2026-10-23
2001:550:2201::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:2203::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:2205::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:2206::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:2207::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:2208::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:2209::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:220a::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:220b::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:220c::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:220e::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:2211::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:2212::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:2213::/48 v6 no ROA 9 37721174 2026-10-23
2001:550:2217::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:221a::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:221c::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:221d::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:221e::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:2301::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:2500::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:2502::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:2503::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:2600:100::/56 v6 no ROA 4 20205174 2026-09-18
2001:550:2601::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:2602::/48 v6 no ROA 31 34549174 2026-09-18
2001:550:2604::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:2605::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:2702::/48 v6 no ROA 9 37721174 2026-10-28
2001:550:2703::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:2707::/48 v6 no ROA 9 37721174 2026-09-18
2001:550:2800:100::/64 v6 no ROA 4 20205174 2026-10-16
2001:550:2803::/48 v6 no ROA 9 37721174 2026-09-18