198.51.121.0/24 Howard County, Maryland
Announced by AS26297 Howard County, Maryland. RPKI not found Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 198.51.121.0/24
Prefix
Origin
AS26297 HCGOV
RPKI
RPKI not found
Size
256 addresses
Less specific
none
More specifics
0
IRR route objects
3 exact, 1 covering
In RouteViews
2026-10-15 16:02 UTC
Paths
How 198.51.121.0/24 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 10886 27026 26297×2
| Origin | AS26297 Howard County, Maryland |
| Origin code | IGP |
| Communities | 174:21001 174:22013 36601:150 36601:174 36601:2001 |
| Updated | 1d 14h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 27026 26297×2
| Origin | AS26297 Howard County, Maryland |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 8d 0h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 27026 26297×2
| Origin | AS26297 Howard County, Maryland |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 8d 0h 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 |
|---|---|---|---|---|
| 198.51.121.0/24 | AS26297 HCGOV | ARIN | CHC IP range advertised by Howard County | MNT-CHC-107 |
| 198.51.121.0/24 | AS6059 UMS2-ASN | LEVEL3 | Proxy-registered route object | LEVEL3-MNT |
| 198.51.121.0/24 | AS26297 HCGOV | RADB | Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 | MAINT-AS7922 |
| 198.51.120.0/23 covering | AS7132 SBIS-AS | RADB | Herndon, VA SBC Internet Services SBCT - CARROL COUNTY HOSPITAL | MAINT-AS7132 |