AS63747 Central Post and Telecommunication (CPT)

CPT-AS-VN - Central Post and Telecommunication (CPT) · registered in Vietnam

IPv4 addresses4,0962 prefixes · <0.001% of announced IPv4

Rank in Vietnam#57largest network in VN by IPv4 space, of 539 · 0.03% of VN

Rank worldwide#16,302of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryVietnam551 ASNs registered there

Open AS63747 in ASN lookup Look up an IP in this network (45.252.240.1) All networks in Vietnam

IPv4 prefixes

All 2 prefixes, in address order.

45.252.240.0/21
103.221.224.0/21

Similar-sized networks in Vietnam

ASNNameIPv4 addresses

AS135932#54 VNDATA-AS-VN - Viet Storage Technology Joint Stock Company4,352

AS55309#55 MTT-AS-VN - Minh Tu Telecom Limited Company4,096

AS45542#56 VNU-AS-VN - VietNam National University Ha Noi4,096

AS135987#58 INDRA-RELOAD-AS-VN - Reload Company Limited3,840

AS131435#59 HOABINH-VN - Vietnam Esports and Entertainment Joint Stock Company3,840

AS63731#60 TPTECO-AS-VN - TIEN PHAT TECHNOLOGY CORPORATION3,584

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