ResearchRouting table, looking glass, RPKI & IRR

221.144.0.0/12 Korea Telecom

Announced by AS4766 Korea Telecom. RPKI not found Seen by 5 of our 5 looking glass sessions.

Summary

What the table says about 221.144.0.0/12

Prefix
221.144.0.0/12
Origin
AS4766 KIXS-AS-KR-KR
RPKI
RPKI not found
Size
1,048,576 addresses
Less specific
none
More specifics
51
IRR route objects
1 exact, 0 covering
In RouteViews
2026-10-17 20:01 UTC
Paths

How 221.144.0.0/12 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 4766
OriginAS4766 Korea Telecom
Origin codeIGP
Communities174:21001 174:22013 36601:150 36601:174 36601:2001
Updated9d 18h ago
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 7029 4766
OriginAS4766 Korea Telecom
Origin codeIGP
Communities903:900 903:13760
Updated10d 3h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6461 4766
OriginAS4766 Korea Telecom
Origin codeIGP
Communities6461:5997 36295:100 36295:6461
Updated3d 4h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Jacksonville, FL)Collector-2-COCOA-FL36295 174 4766
OriginAS4766 Korea Telecom
Origin codeIGP
Communities174:21001 174:22013
Updated10d 3h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Orlando, FL)Collector-2-COCOA-FL36295 174 4766
OriginAS4766 Korea Telecom
Origin codeIGP
Communities174:21001 174:22013 36295:100 36295:174
Updated13d 20h ago
RPKI

Route origin authorizations

No ROA covers this prefix, so RPKI has nothing to say about who may originate it. Validate another origin.

IRR

Route objects

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

RouteOriginSourceDescriptionMaintained by
221.144.0.0/12AS4766 KIXS-AS-KR-KRRADBKORnet operation Center(Korea Telecom)MAINT-AS4766
More specific

Prefixes inside 221.144.0.0/12

51 announced prefixes fall inside this one.

Show the 51 prefixes
221.144.0.0/13 AS4766 KIXS-AS-KR-KR221.144.37.0/24 AS4766 KIXS-AS-KR-KR221.144.152.0/24 AS55622 CNUE-AS-KR-KR221.144.191.0/24 AS152198 GWACKR-AS-KR-KR221.145.178.0/24 AS45400 NICNET-KR221.145.224.0/24 AS4766 KIXS-AS-KR-KR221.146.17.0/24 AS4766 KIXS-AS-KR-KR221.146.193.0/24 AS9856 WOORIWM-AS-KR-KR221.146.229.0/24 AS9972 INTINFRA-AS-KR-KR221.147.50.0/24 AS152214 KOREANAIRLINES-AS-KR-KR221.147.51.0/24 AS4766 KIXS-AS-KR-KR221.147.52.0/24 AS4766 KIXS-AS-KR-KR221.147.53.0/24 AS4766 KIXS-AS-KR-KR221.147.54.0/24 AS4766 KIXS-AS-KR-KR221.147.55.0/24 AS4766 KIXS-AS-KR-KR221.147.83.0/24 AS9526 KOSCOM-AS-KR-KR221.147.101.0/24 AS9850 WOWTV-AS-KR221.149.141.0/24 AS10185 HNB-AS-KR221.149.230.0/24 AS45360 SSYC-AS-KR-KR221.149.240.0/22 AS131842 YSP-AS-KR-KR221.150.21.0/24 AS10184 KFCCC-AS-KR221.150.114.0/24 AS55592 KDT-AS-KR-KR221.150.156.0/23 AS4766 KIXS-AS-KR-KR221.150.196.0/24 AS38697 MOK9882-AS-KR-KR221.151.165.0/24 AS38405 GOEKM-AS-KR-KR221.151.172.0/24 AS38112 HUGC-AS-KR-KR221.151.180.0/24 AS9526 KOSCOM-AS-KR-KR221.152.0.0/13 AS4766 KIXS-AS-KR-KR221.153.249.0/24 AS4766 KIXS-AS-KR-KR221.154.82.0/24 AS4766 KIXS-AS-KR-KR221.154.83.0/24 AS4766 KIXS-AS-KR-KR221.154.84.0/24 AS4766 KIXS-AS-KR-KR221.154.85.0/24 AS4766 KIXS-AS-KR-KR221.154.86.0/24 AS4766 KIXS-AS-KR-KR221.154.87.0/24 AS4766 KIXS-AS-KR-KR221.154.88.0/24 AS4766 KIXS-AS-KR-KR221.154.89.0/24 AS4766 KIXS-AS-KR-KR221.154.90.0/24 AS4766 KIXS-AS-KR-KR221.157.100.0/22 AS4766 KIXS-AS-KR-KR221.157.104.0/21 AS4766 KIXS-AS-KR-KR221.157.112.0/22 AS4766 KIXS-AS-KR-KR221.157.116.0/24 AS4766 KIXS-AS-KR-KR221.157.125.0/24 AS152232 KTCC-AS-KR-KR221.157.126.0/24 AS4766 KIXS-AS-KR-KR221.157.127.0/24 AS4766 KIXS-AS-KR-KR221.157.128.0/23 AS4766 KIXS-AS-KR-KR221.158.73.0/24 AS17576 KOSEF-AS-KR-KR221.159.130.0/24 AS4766 KIXS-AS-KR-KR221.159.186.0/24 AS4766 KIXS-AS-KR-KR221.159.187.0/24 AS4766 KIXS-AS-KR-KR221.159.210.0/24 AS55622 CNUE-AS-KR-KR
Tools

Check 221.144.0.0/12 live

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