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AS25163
AS25163 21st Century Technologies Limited
21st Century Technologies Limited - 21st Century Technologies Limited · registered in Nigeria
IPv4 addresses 4,096 1 prefixes · <0.001% of announced IPv4
Rank in Nigeria #39 largest network in NG by IPv4 space, of 228 · 0.17% of NG
Rank worldwide #15,838 of 79,396 networks with IPv4
IPv6 none no IPv6 routes announced
Country Nigeria 232 ASNs registered there
IPv4 prefixes
All 1 prefix, in address order.
Similar-sized networks in Nigeria
ASN Name IPv4 addresses
AS37269 #36 Information Connectivity Solutions Limited - Information Connectivity Solutions Limited4,608
AS37688 #37 BACKBONE CONNECTIVITY NETWORK (NIGERIA) LIMITED - BACKBONE CONNECTIVITY NETWORK (NIGERIA) LIMITED4,352
AS327942 #38 LANDMARK UNIVERSITY OMU-ARAN - LANDMARK UNIVERSITY OMU-ARAN4,352
AS37200 #40 SimbaNET Nigeria Limited - SimbaNET Nigeria Limited4,096
AS37230 #41 Swifttalk Limited - Swifttalk Limited4,096
AS37605 #42 General Telecommunication Networks (NIG) Limited - General Telecommunication Networks (NIG) Limited4,096
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