143.112.128.0/18 Level 3 Parent, LLC
Announced by AS203 Level 3 Parent, LLC. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 143.112.128.0/18
Prefix
Origin
AS203 CENTURYLINK-LEGACY-LVLT-203
RPKI
RPKI valid
Size
16,384 addresses
Less specific
none
More specifics
2
IRR route objects
4 exact, 0 covering
In RouteViews
2026-10-15 20:02 UTC
Paths
How 143.112.128.0/18 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 203
| Origin | AS203 Level 3 Parent, LLC |
| Origin code | IGP |
| Communities | 174:21000 174:22013 36601:150 36601:174 36601:2001 |
| Updated | 1d 17h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 203
| Origin | AS203 Level 3 Parent, LLC |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 8d 3h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6461 3356 203
| Origin | AS203 Level 3 Parent, LLC |
| Origin code | IGP |
| Communities | 6461:5997 36295:100 36295:6461 |
| Updated | 8h 13m ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS203 to originate 143.112.128.0/18 up to /24. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 143.112.128.0/18 | /24 | AS202 CENTURYLINK-LEGACY-LVLT-202 | ARIN |
| 143.112.128.0/18 | /24 | AS203 CENTURYLINK-LEGACY-LVLT-203 | ARIN |
| 143.112.128.0/18 | /24 | AS3356 LEVEL3 | ARIN |
| 143.112.128.0/18 | /24 | AS10599 MCKESSON | 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 |
|---|---|---|---|---|
| 143.112.128.0/18 | AS202 CENTURYLINK-LEGACY-LVLT-202 | ARIN | McKesson Corp. | MNT-MCKESS |
| 143.112.128.0/18 | AS203 CENTURYLINK-LEGACY-LVLT-203 | ARIN | McKesson Corp. | MNT-MCKESS |
| 143.112.128.0/18 | AS3356 LEVEL3 | ARIN | McKesson Corp. | MNT-MCKESS |
| 143.112.128.0/18 | AS10599 MCKESSON | ARIN | McKesson Corp. | MNT-MCKESS |
More specific
Prefixes inside 143.112.128.0/18
2 announced prefixes fall inside this one.