AS38133 CMB

MULTINET-AS-KR-KR - CMB · registered in South Korea

IPv4 addresses20,99215 prefixes · <0.001% of announced IPv4

Rank in South Korea#163largest network in KR by IPv4 space, of 853 · 0.02% of KR

Rank worldwide#5,984of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountrySouth Korea869 ASNs registered there

Open AS38133 in ASN lookup Look up an IP in this network (27.126.0.1) All networks in South Korea

IPv4 prefixes

All 15 prefixes, in address order.

27.126.0.0/22
27.126.8.0/24
27.126.12.0/22
27.126.16.0/23
27.126.24.0/21
27.126.32.0/21
27.126.40.0/22
27.126.44.0/23
27.126.46.0/24
27.126.48.0/21
27.126.56.0/22
27.126.60.0/24
27.126.61.0/24
27.126.62.0/23
122.252.192.0/19

Other ASNs named CMB

1 other network uses the same organisation name; together with AS38133 they announce 64,000 IPv4 addresses.

ASNNameIPv4 addresses

AS38680CMBHK-AS-KR-KR - CMB KR43,008

Similar-sized networks in South Korea

ASNNameIPv4 addresses

AS9530#160 SHINSEGAE-AS-KR - SHINSEGAE I C Co., Ltd.20,992

AS9578#161 CJNET-AS-KR - Cheiljedang.Co.Inc.20,992

AS9868#162 CUTH-AS-KR - Catholic University of DAEGU20,992

AS18319#164 YJNET-AS-KR-KR - YeungNam College of Science Technology20,736

AS18026#165 CHEJU-AS-KR-KR - JEJU NATIONAL UNIVERSITY20,224

AS23570#166 incheon-AS-KR-KR - UNIVERSITY OF INCHEON19,456

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources