ResearchRouting table, looking glass, RPKI & IRR

154.21.0.0/16 Cogent Communications, LLC

Announced by AS174 Cogent Communications, LLC. RPKI not found Seen by 5 of our 5 looking glass sessions.

Summary

What the table says about 154.21.0.0/16

Prefix
154.21.0.0/16
Origin
AS174 COGENT-174
RPKI
RPKI not found
Size
65,536 addresses
Less specific
none
More specifics
90
IRR route objects
0 exact, 0 covering
In RouteViews
2026-10-14 04:02 UTC
Paths

How 154.21.0.0/16 is reached

Every path our looking glass collectors hold for this exact prefix. Open one for its attributes, or see them all side by side in the looking glass.

AS36601 TNT (TNT - Tampa, FL)Collector-1-TAMPA-FL36601 174
OriginAS174 Cogent Communications, LLC
Origin codeIGP
Communities174:21001 174:22013 36601:150 36601:174 36601:2001
Updated6d 2h ago
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 174
OriginAS174 Cogent Communications, LLC
Origin codeIGP
Communities903:900 903:13760
Updated6d 10h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6461 174
OriginAS174 Cogent Communications, LLC
Origin codeIGP
Communities6461:5997 36295:100 36295:6461
Updated16h 21m ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Jacksonville, FL)Collector-2-COCOA-FL36295 174
OriginAS174 Cogent Communications, LLC
Origin codeIGP
Communities174:21001 174:22013
Updated6d 10h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Orlando, FL)Collector-2-COCOA-FL36295 174
OriginAS174 Cogent Communications, LLC
Origin codeIGP
Communities174:21001 174:22013 36295:100 36295:174
Updated10d 3h ago
RPKI

Route origin authorizations

No ROA covers this prefix, so RPKI has nothing to say about who may originate it. Validate another origin.

More specific

Prefixes inside 154.21.0.0/16

90 announced prefixes fall inside this one.

Show the 90 prefixes
154.21.8.0/23 AS174 COGENT-174154.21.10.0/23 AS174 COGENT-174154.21.13.0/24 AS400211 PORT80154.21.14.0/24 AS174 COGENT-174154.21.15.0/24 AS272935 AS272935154.21.16.0/22 AS5650 FRONTIER-FRTR154.21.20.0/23 AS174 COGENT-174154.21.22.0/23 AS149487 MCLOCCL-AS-AP154.21.22.0/24 AS149487 MCLOCCL-AS-AP154.21.24.0/23 AS174 COGENT-174154.21.26.0/23 AS174 COGENT-174154.21.31.0/24 AS174 COGENT-174154.21.32.0/24 AS174 COGENT-174154.21.33.0/24 AS174 COGENT-174154.21.34.0/24 AS174 COGENT-174154.21.35.0/24 AS174 COGENT-174154.21.36.0/23 AS174 COGENT-174154.21.38.0/23 AS174 COGENT-174154.21.40.0/24 AS150044 MIEUXTECH-AS-IN154.21.41.0/24 AS174 COGENT-174154.21.56.0/24 AS55066 ESTRUXTURE-BC-B154.21.57.0/24 AS55066 ESTRUXTURE-BC-B154.21.60.0/23 AS174 COGENT-174154.21.62.0/23 AS174 COGENT-174154.21.64.0/23 AS174 COGENT-174154.21.66.0/23 AS174 COGENT-174154.21.68.0/24 AS174 COGENT-174154.21.69.0/24 AS174 COGENT-174154.21.70.0/23 AS174 COGENT-174154.21.80.0/20 AS906 DMIT154.21.80.0/24 AS906 DMIT154.21.81.0/24 AS906 DMIT154.21.82.0/24 AS906 DMIT154.21.83.0/24 AS906 DMIT154.21.84.0/24 AS906 DMIT154.21.85.0/24 AS906 DMIT154.21.86.0/24 AS906 DMIT154.21.87.0/24 AS906 DMIT154.21.88.0/24 AS906 DMIT154.21.89.0/24 AS906 DMIT154.21.90.0/24 AS906 DMIT154.21.91.0/24 AS906 DMIT154.21.92.0/24 AS906 DMIT154.21.93.0/24 AS906 DMIT154.21.94.0/24 AS906 DMIT154.21.95.0/24 AS906 DMIT154.21.96.0/23 AS174 COGENT-174154.21.98.0/24 AS174 COGENT-174154.21.106.0/24 AS174 COGENT-174154.21.107.0/24 AS399275 SOLID154.21.110.0/23 AS174 COGENT-174154.21.112.0/24 AS152491 RMDC-AS-IN154.21.113.0/24 AS152491 RMDC-AS-IN154.21.118.0/24 AS174 COGENT-174154.21.124.0/23 AS174 COGENT-174154.21.126.0/23 AS174 COGENT-174154.21.128.0/22 AS396026 DEASIL-NETWORKS154.21.132.0/22 AS174 COGENT-174154.21.136.0/22 AS396026 DEASIL-NETWORKS154.21.148.0/22 AS396026 DEASIL-NETWORKS154.21.154.0/23 AS174 COGENT-174154.21.157.0/24 AS174 COGENT-174154.21.158.0/23 AS174 COGENT-174154.21.160.0/22 AS133527 HTIL-AS-AP154.21.168.0/23 AS174 COGENT-174154.21.172.0/22 AS174 COGENT-174154.21.192.0/21 AS174 COGENT-174154.21.194.0/24 AS979 NETLAB-SDN154.21.195.0/24 AS979 NETLAB-SDN154.21.196.0/22 AS979 NETLAB-SDN154.21.200.0/22 AS979 NETLAB-SDN154.21.200.0/24 AS979 NETLAB-SDN154.21.201.0/24 AS979 NETLAB-SDN154.21.202.0/24 AS979 NETLAB-SDN154.21.203.0/24 AS979 NETLAB-SDN154.21.204.0/22 AS174 COGENT-174154.21.208.0/23 AS397797 CITYOFMARSHALL-01154.21.210.0/23 AS174 COGENT-174154.21.212.0/23 AS46475 LIMESTONENETWORKS154.21.214.0/24 AS174 COGENT-174154.21.215.0/24 AS56504 HOSTCIRCLE-L-NL154.21.216.0/24 AS174 COGENT-174154.21.217.0/24 AS138890 ACEHLINK-AS-ID154.21.218.0/23 AS174 COGENT-174154.21.224.0/21 AS396026 DEASIL-NETWORKS154.21.232.0/23 AS174 COGENT-174154.21.234.0/23 AS154871 CTSPL-AS-AP154.21.236.0/23 AS174 COGENT-174154.21.238.0/24 AS174 COGENT-174154.21.239.0/24 AS399275 SOLID
Tools

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