ResearchRouting table, looking glass, RPKI & IRR

63.133.192.0/21 Telstra Global

Announced by AS4637 Telstra Global. RPKI valid Seen by 5 of our 5 looking glass sessions.

Summary

What the table says about 63.133.192.0/21

Prefix
63.133.192.0/21
Origin
AS4637 ASN-TELSTRA-GLOBAL
RPKI
RPKI valid
Size
2,048 addresses
Less specific
63.133.192.0/20 AS3257 GTT-BACKBONE
More specifics
0
IRR route objects
9 exact, 2 covering
In RouteViews
2026-10-13 20:02 UTC
Paths

How 63.133.192.0/21 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 13760 3356 4637
OriginAS4637 Telstra Global
Origin codeIGP
Communities3356:3 3356:22 3356:86 3356:575 3356:666 3356:901 3356:2050 36601:150 36601:2001 36601:13760
Updated3h 0m ago
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 4637
OriginAS4637 Telstra Global
Origin codeIGP
Communities903:900 903:13760
Updated6d 3h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 4637
OriginAS4637 Telstra Global
Origin codeIGP
Communities36295:100
Updated6d 3h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Jacksonville, FL)Collector-2-COCOA-FL36295 6939 4637
OriginAS4637 Telstra Global
Origin codeIGP
Communitiesnone
Updated6d 3h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Orlando, FL)Collector-2-COCOA-FL36295 174 1299 4637×4
OriginAS4637 Telstra Global
Origin codeIGP
Communities174:21000 174:22013 36295:100 36295:174
Updated9d 20h ago
RPKI

Route origin authorizations

Covered by a ROA authorizing AS4637 to originate 63.133.192.0/21 up to /24. Validate another origin.

ROA prefixMax lengthAuthorized originTrust anchor
63.133.192.0/21/24AS3320 DTAGARIN
63.133.192.0/21/24AS4637 ASN-TELSTRA-GLOBALARIN
63.133.192.0/21/24AS6079 RCN-ASARIN
63.133.192.0/21/24AS6762 SEABONE-NETARIN
63.133.192.0/21/24AS7029 WINDSTREAMARIN
63.133.192.0/21/24AS8881 VERSATELARIN
63.133.192.0/21/24AS11404 AS-WAVE-1ARIN
63.133.192.0/21/24AS20115 CHARTER-20115ARIN
63.133.192.0/21/24AS398465 RACKDOG-LLCARIN
IRR

Route objects

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

RouteOriginSourceDescriptionMaintained by
63.133.192.0/21AS3320 DTAGARINAirband Communications, IncMNT-AIRB
63.133.192.0/21AS4637 ASN-TELSTRA-GLOBALARINAirband Communications, IncMNT-AIRB
63.133.192.0/21AS6079 RCN-ASARINAirband Communications, IncMNT-AIRB
63.133.192.0/21AS6762 SEABONE-NETARINAirband Communications, IncMNT-AIRB
63.133.192.0/21AS7029 WINDSTREAMARINAirband Communications, IncMNT-AIRB
63.133.192.0/21AS8881 VERSATELARINAirband Communications, IncMNT-AIRB
63.133.192.0/21AS11404 AS-WAVE-1ARINAirband Communications, IncMNT-AIRB
63.133.192.0/21AS20115 CHARTER-20115ARINAirband Communications, IncMNT-AIRB
63.133.192.0/21AS398465 RACKDOG-LLCARINAirband Communications, IncMNT-AIRB
63.133.192.0/20 coveringAS3257 GTT-BACKBONEARINGTTMNT-AIRB
63.133.192.0/20 coveringAS20077 IPNETZONE-ASNARINGTTMNT-AIRB
Less specific

Covering prefixes

Announced prefixes that contain this one, most specific first.

63.133.192.0/20 AS3257 GTT-BACKBONE
Tools

Check 63.133.192.0/21 live

Looking glassIP to ASN APIRPKI APIIRR API