ResearchRouting table, looking glass, RPKI & IRR

143.112.192.0/19 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 143.112.192.0/19

Prefix
143.112.192.0/19
Origin
AS203 CENTURYLINK-LEGACY-LVLT-203
RPKI
RPKI valid
Size
8,192 addresses
Less specific
none
More specifics
0
IRR route objects
4 exact, 0 covering
In RouteViews
2026-10-15 08:02 UTC
Paths

How 143.112.192.0/19 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
Updated1d 5h 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
Updated7d 16h 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
Updated7d 16h 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
Updated7d 16h 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
Updated11d 9h ago
RPKI

Route origin authorizations

Covered by a ROA authorizing AS203 to originate 143.112.192.0/19 up to /24. Validate another origin.

ROA prefixMax lengthAuthorized originTrust anchor
143.112.192.0/19/24AS202 CENTURYLINK-LEGACY-LVLT-202ARIN
143.112.192.0/19/24AS203 CENTURYLINK-LEGACY-LVLT-203ARIN
143.112.192.0/19/24AS3356 LEVEL3ARIN
143.112.192.0/19/24AS10599 MCKESSONARIN
IRR

Route objects

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

RouteOriginSourceDescriptionMaintained by
143.112.192.0/19AS202 CENTURYLINK-LEGACY-LVLT-202ARINMcKesson Corp.MNT-MCKESS
143.112.192.0/19AS203 CENTURYLINK-LEGACY-LVLT-203ARINMcKesson Corp.MNT-MCKESS
143.112.192.0/19AS3356 LEVEL3ARINMcKesson Corp.MNT-MCKESS
143.112.192.0/19AS10599 MCKESSONARINMcKesson Corp.MNT-MCKESS
Tools

Check 143.112.192.0/19 live

Looking glassIP to ASN APIRPKI APIIRR API