ResearchRouting table, looking glass, RPKI & IRR

143.112.0.0/17 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 143.112.0.0/17

Prefix
143.112.0.0/17
Origin
AS203 CENTURYLINK-LEGACY-LVLT-203
RPKI
RPKI valid
Size
32,768 addresses
Less specific
none
More specifics
1
IRR route objects
4 exact, 0 covering
In RouteViews
2026-10-14 08:02 UTC
Paths

How 143.112.0.0/17 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
OriginAS203 Level 3 Parent, LLC
Origin codeIGP
Communities174:21000 174:22013 36601:150 36601:174 36601:2001
Updated4h 53m ago
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 203
OriginAS203 Level 3 Parent, LLC
Origin codeIGP
Communities903:900 903:13760
Updated6d 15h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 3356 203
OriginAS203 Level 3 Parent, LLC
Origin codeIGP
Communities36295:100
Updated6d 15h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Jacksonville, FL)Collector-2-COCOA-FL36295 174 3356 203
OriginAS203 Level 3 Parent, LLC
Origin codeIGP
Communities174:21000 174:22013
Updated6d 15h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Orlando, FL)Collector-2-COCOA-FL36295 174 3356 203
OriginAS203 Level 3 Parent, LLC
Origin codeIGP
Communities174:21000 174:22013 36295:100 36295:174
Updated10d 8h ago
RPKI

Route origin authorizations

Covered by a ROA authorizing AS203 to originate 143.112.0.0/17 up to /22. Validate another origin.

ROA prefixMax lengthAuthorized originTrust anchor
143.112.0.0/17/22AS202 CENTURYLINK-LEGACY-LVLT-202ARIN
143.112.0.0/17/22AS203 CENTURYLINK-LEGACY-LVLT-203ARIN
143.112.0.0/17/22AS3356 LEVEL3ARIN
143.112.0.0/17/22AS10599 MCKESSONARIN
IRR

Route objects

Registered in the IRR for this prefix and the ones covering it. Look it up live.

RouteOriginSourceDescriptionMaintained by
143.112.0.0/17AS202 CENTURYLINK-LEGACY-LVLT-202ARINMcKesson Corp.MNT-MCKESS
143.112.0.0/17AS203 CENTURYLINK-LEGACY-LVLT-203ARINMcKesson Corp.MNT-MCKESS
143.112.0.0/17AS3356 LEVEL3ARINMcKesson Corp.MNT-MCKESS
143.112.0.0/17AS10599 MCKESSONARINMcKesson Corp.MNT-MCKESS
More specific

Prefixes inside 143.112.0.0/17

1 announced prefix fall inside this one.

Show the 1 prefixes
143.112.68.0/22 AS203 CENTURYLINK-LEGACY-LVLT-203
Tools

Check 143.112.0.0/17 live

Looking glassIP to ASN APIRPKI APIIRR API