206208 looking glass

AS174 Cogent Communications, LLC 🇺🇸 US

Announcing 4,518 prefixes, seen at the RIS collectors.

IPv4 prefixes
3,989
37,641,216 (147,036 × /24)
IPv6 prefixes
529
58 × /32
Upstreams
84
transit providers observed
Peers
24
settlement-free adjacencies
Downstreams
6,424
transit customers observed
Customer cone
65,622
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
Website
http://www.cogentco.com/
Looking glass
http://www.cogentco.com/en/network/looking-glass
PeeringDB
net/267
Facilities
816

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

469 valid (10.4%) 23 invalid (0.5%) 4,026 no ROA (89.1%)

Announced prefixes

4,518 in total

Prefix RPKI Peers Sample path First seen
2001:550:201::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:202::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:203::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:204::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:205::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:206::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:209::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:20a::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:20b::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:302::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:303::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:304::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:306::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:307::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:308::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:309::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:30c::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:30d::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:402::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:407::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:408::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:40a::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:40b::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:40c::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:40e::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:40f::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:410::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:412::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:602::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:606::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:702::/48 v6 no ROA 10 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 10 37721174 2026-09-18
2001:550:802::/48 v6 no ROA 10 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 10 37721174 2026-09-18
2001:550:805::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:905::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:906::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:908::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:909::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:90b::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:911::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:912::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:913::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:a00::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:a02::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:a04::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:a06::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:a07::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:a09::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:a0a::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:a0b::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:a0c::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:a0d::/48 v6 no ROA 10 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 10 37721174 2026-09-18
2001:550:a10::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:a11::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:a12::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:a13::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:a15::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:a16::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:a19::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:a1a::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:a1b::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:a1c::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:a1d::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:a20::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:a21::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:a22::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:a23::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:a24::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:a25::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:a26::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:a28::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:b01::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:c01::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:c02::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:c03::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:c04::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:c05::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:c07::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:d00::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:d02::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:d04::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:d08::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:e02::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:e05::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:f00::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:f02::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:1100::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:1200:1::/64 v6 no ROA 4 20205174 2026-09-18
2001:550:1200:3::/64 v6 no ROA 4 20205174 2026-09-18
2001:550:1202::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:1202:1::/64 v6 no ROA 4 20205174 2026-09-18
2001:550:1204::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:1205::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:1207::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:1208::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:120b::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:1303::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:1304::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:1305::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:1401::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:1504::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:1505::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:1506::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:1507::/48 v6 no ROA 10 37721174 2026-09-18
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 10 37721174 2026-09-18
2001:550:1607::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:1609::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:160a::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:1700::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:1801::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:1802::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:1804::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:1805::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:1807::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:1900:1::/64 v6 no ROA 4 20205174 2026-09-18
2001:550:1901::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:1905::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:1b00::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:1b05::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:1b06::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:1b07::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:1b08::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:1b09::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:1b0b::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:1d01::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:1d02::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:1d03::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:1d04::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:1d09::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:1d0e::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:1e00::/64 v6 no ROA 4 20205174 2026-09-18
2001:550:1e01::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:2004::/48 v6 no ROA 5 50300174 2026-09-18
2001:550:2006::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:2007::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:2101::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:2103::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:2108::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:2109::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:2201::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:2203::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:2205::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:2206::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:2207::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:2208::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:2209::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:220a::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:220b::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:220c::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:220e::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:2211::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:2212::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:2217::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:221a::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:221c::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:221d::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:221e::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:2301::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:2500::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:2502::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:2503::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:2600:100::/56 v6 no ROA 4 20205174 2026-09-18
2001:550:2601::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:2602::/48 v6 no ROA 34 34549174 2026-09-18
2001:550:2604::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:2605::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:2702::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:2703::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:2707::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:2800:100::/64 v6 no ROA 4 20205174 2026-09-18
2001:550:2803::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:2804::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:2805::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:2806::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:2807::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:2808::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:2809::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:280b::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:280c::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:280d::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:2900::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:2904::/48 v6 no ROA 10 37721174 2026-09-18
2001:550:2904:1::/64 v6 no ROA 4 20205174 2026-09-18
2001:550:2904:5::/64 v6 no ROA 4 20205174 2026-09-18
2001:550:2904:7::/64 v6 no ROA 4 20205174 2026-09-18
2001:550:2904:9::/64 v6 no ROA 4 20205174 2026-09-18
2001:550:2904:b::/64 v6 no ROA 4 20205174 2026-09-18
2001:550:2904:d::/64 v6 no ROA 4 20205174 2026-09-18
2001:550:2904:f::/64 v6 no ROA 4 20205174 2026-09-18
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