156.74.248.0/21 City of Seattle, Dept. of Admin. Services
Announced by AS3401 City of Seattle, Dept. of Admin. Services. RPKI not found Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 156.74.248.0/21
Prefix
Origin
AS3401 SEATTLE
RPKI
RPKI not found
Size
2,048 addresses
Less specific
none
More specifics
2
IRR route objects
0 exact, 1 covering
In RouteViews
2026-10-14 20:02 UTC
Paths
How 156.74.248.0/21 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 3401
| Origin | AS3401 City of Seattle, Dept. of Admin. Services |
| Origin code | IGP |
| Communities | 174:21001 174:22013 36601:150 36601:174 36601:2001 |
| Updated | 6d 20h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 3401×2
| Origin | AS3401 City of Seattle, Dept. of Admin. Services |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 7d 4h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6461 174 3401
| Origin | AS3401 City of Seattle, Dept. of Admin. Services |
| Origin code | IGP |
| Communities | 6461:5997 36295:100 36295:6461 |
| Updated | 6h 41m ago |
RPKI
Route origin authorizations
No ROA covers this prefix, so RPKI has nothing to say about who may originate it. Validate another origin.
IRR
Route objects
Registered in the IRR for this prefix and the ones covering it. Look it up live.
| Route | Origin | Source | Description | Maintained by |
|---|---|---|---|---|
| 156.74.0.0/16 covering | AS3401 SEATTLE | RADB | City of Seattle-IIT | MAINT-AS3401 |
More specific
Prefixes inside 156.74.248.0/21
2 announced prefixes fall inside this one.