199.253.128.0/21 Blue Cross Blue Shield of North Dakota
Announced by AS13660 Blue Cross Blue Shield of North Dakota. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 199.253.128.0/21
Prefix
Origin
AS13660 BCBSND-AS
RPKI
RPKI valid
Size
2,048 addresses
Less specific
none
More specifics
0
IRR route objects
1 exact, 0 covering
In RouteViews
2026-10-14 04:02 UTC
Paths
How 199.253.128.0/21 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 3356 13660
| Origin | AS13660 Blue Cross Blue Shield of North Dakota |
| Origin code | IGP |
| Communities | 174:21000 174:22013 36601:150 36601:174 36601:2001 |
| Updated | 1h 15m ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 13660
| Origin | AS13660 Blue Cross Blue Shield of North Dakota |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 6d 11h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 3356 13660
| Origin | AS13660 Blue Cross Blue Shield of North Dakota |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 6d 11h ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS13660 to originate 199.253.128.0/21 up to /21. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 199.253.128.0/21 | /21 | AS209 CENTURYLINK-US-LEGACY-QWEST | ARIN |
| 199.253.128.0/21 | /21 | AS3356 LEVEL3 | ARIN |
| 199.253.128.0/21 | /21 | AS13660 BCBSND-AS | ARIN |
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 |
|---|---|---|---|---|
| 199.253.128.0/21 | AS13660 BCBSND-AS | RADB | Noridian Mutual Insurance Company primary IPv4 address space | MAINT-AS13660 |