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AS25163 21st Century Technologies Limited

21st Century Technologies Limited - 21st Century Technologies Limited · registered in Nigeria

IPv4 addresses4,0961 prefixes · <0.001% of announced IPv4
Rank in Nigeria#39largest network in NG by IPv4 space, of 228 · 0.17% of NG
Rank worldwide#15,838of 79,396 networks with IPv4
IPv6noneno IPv6 routes announced
CountryNigeria232 ASNs registered there

IPv4 prefixes

All 1 prefix, in address order.

  • 80.248.0.0/20

Similar-sized networks in Nigeria

ASNNameIPv4 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