74.4.176.0/21 CenturyLink Communications, LLC
Announced by AS14921 CenturyLink Communications, LLC. RPKI not found Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 74.4.176.0/21
Prefix
Origin
AS14921 CENTURYLINK-LEGACY-EMBARQ-HDRV
RPKI
RPKI not found
Size
2,048 addresses
Less specific
More specifics
0
IRR route objects
2 exact, 0 covering
In RouteViews
2026-10-12 12:02 UTC
Paths
How 74.4.176.0/21 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 209 14921
| Origin | AS14921 CenturyLink Communications, LLC |
| Origin code | IGP |
| Communities | 174:21000 174:22013 36601:150 36601:174 36601:2001 |
| Updated | 4d 10h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 209 14921
| Origin | AS14921 CenturyLink Communications, LLC |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 4d 18h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 3356 209 14921
| Origin | AS14921 CenturyLink Communications, LLC |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 4d 18h 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 |
|---|---|---|---|---|
| 74.4.176.0/21 | AS14921 CENTURYLINK-LEGACY-EMBARQ-HDRV | LEVEL3 | EMBARQ HDRV HSD | EMBARQ-MNT |
| 74.4.176.0/21 | AS22561 CENTURYLINK-LEGACY-LIGHTCORE | LEVEL3 | add route | LIGHTCORE-MNT |
Less specific
Covering prefixes
Announced prefixes that contain this one, most specific first.