ResearchRouting table, looking glass, RPKI & IRR

123.205.0.0/18 Taiwan Infrastructure Network Technologie

Announced by AS18049 Taiwan Infrastructure Network Technologie. RPKI valid Seen by 5 of our 5 looking glass sessions.

Summary

What the table says about 123.205.0.0/18

Prefix
123.205.0.0/18
Origin
AS18049 TINP-TW
RPKI
RPKI valid
Size
16,384 addresses
Less specific
123.205.0.0/17 AS18049 TINP-TW
More specifics
21
IRR route objects
2 exact, 3 covering
In RouteViews
2026-10-13 20:02 UTC
Paths

How 123.205.0.0/18 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 6453 4780 18049
OriginAS18049 Taiwan Infrastructure Network Technologie
Origin codeIGP
Communities174:21000 174:22013 36601:150 36601:174 36601:2001
Updated5d 20h ago
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 9002 4780 18049
OriginAS18049 Taiwan Infrastructure Network Technologie
Origin codeIGP
Communities903:900 903:13760
Updated6d 5h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 4780 18049
OriginAS18049 Taiwan Infrastructure Network Technologie
Origin codeIGP
Communities36295:100
Updated6d 5h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Jacksonville, FL)Collector-2-COCOA-FL36295 6939 4780 18049
OriginAS18049 Taiwan Infrastructure Network Technologie
Origin codeIGP
Communitiesnone
Updated6d 5h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Orlando, FL)Collector-2-COCOA-FL36295 174 6453 4780 18049
OriginAS18049 Taiwan Infrastructure Network Technologie
Origin codeIGP
Communities174:21000 174:22013 36295:100 36295:174
Updated9d 22h ago
RPKI

Route origin authorizations

Covered by a ROA authorizing AS18049 to originate 123.205.0.0/18 up to /24. Validate another origin.

ROA prefixMax lengthAuthorized originTrust anchor
123.205.0.0/18/24AS18049 TINP-TWAPNIC
123.205.0.0/17/24AS18049 TINP-TWAPNIC
123.205.0.0/16/24AS4780 SEEDNETAPNIC
123.205.0.0/16/24AS9919 NCIC-TWAPNIC
123.204.0.0/15/24AS4780 SEEDNETAPNIC
123.204.0.0/15/24AS9919 NCIC-TWAPNIC
IRR

Route objects

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

RouteOriginSourceDescriptionMaintained by
123.205.0.0/18AS4780 SEEDNETRADBSeedNetMAINT-AS4780
123.205.0.0/18AS18049 TINP-TWRADBPACNET (proxy-registered route object)MAINT-AS4637
123.205.0.0/17 coveringAS4780 SEEDNETRADBSeedNetMAINT-AS4780
123.205.0.0/16 coveringAS4780 SEEDNETRADBSeedNetMAINT-AS4780
123.204.0.0/15 coveringAS4780 SEEDNETRADBSeedNetMAINT-AS4780
Less specific

Covering prefixes

Announced prefixes that contain this one, most specific first.

123.205.0.0/17 AS18049 TINP-TW123.205.0.0/16 AS4780 SEEDNET123.204.0.0/15 AS4780 SEEDNET
More specific

Prefixes inside 123.205.0.0/18

21 announced prefixes fall inside this one.

Show the 21 prefixes
123.205.0.0/21 AS18049 TINP-TW123.205.0.0/24 AS4780 SEEDNET123.205.8.0/21 AS18049 TINP-TW123.205.15.0/24 AS4780 SEEDNET123.205.16.0/21 AS18049 TINP-TW123.205.19.0/24 AS9919 NCIC-TW123.205.24.0/21 AS18049 TINP-TW123.205.32.0/19 AS4780 SEEDNET123.205.32.0/21 AS18049 TINP-TW123.205.32.0/24 AS18049 TINP-TW123.205.34.0/24 AS18049 TINP-TW123.205.35.0/24 AS18049 TINP-TW123.205.36.0/24 AS18049 TINP-TW123.205.37.0/24 AS18049 TINP-TW123.205.38.0/24 AS18049 TINP-TW123.205.39.0/24 AS18049 TINP-TW123.205.40.0/21 AS18049 TINP-TW123.205.47.0/24 AS4780 SEEDNET123.205.48.0/21 AS18049 TINP-TW123.205.56.0/21 AS18049 TINP-TW123.205.56.0/24 AS4780 SEEDNET
Tools

Check 123.205.0.0/18 live

Looking glassIP to ASN APIRPKI APIIRR API