AS37251 Telkom SA Ltd.

Telkom SA Ltd. - Telkom SA Ltd. · registered in South Africa

IPv4 addresses1,0243 prefixes · <0.001% of announced IPv4

Rank in South Africa#393largest network in ZA by IPv4 space, of 653 · <0.01% of ZA

Rank worldwide#37,260of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountrySouth Africa658 ASNs registered there

Open AS37251 in ASN lookup Look up an IP in this network (165.143.109.1) All networks in South Africa

IPv4 prefixes

All 3 prefixes, in address order.

165.143.109.0/24
165.143.110.0/24
197.228.128.0/23

Other ASNs named Telkom SA Ltd.

4 other networks use the same organisation name; together with AS37251 they announce 3,126,528 IPv4 addresses.

ASNNameIPv4 addresses

AS37457Telkom SA Ltd. - Telkom SA Ltd. ZA1,577,216

AS5713Telkom SA Ltd. - Telkom SA Ltd. ZA1,452,544

AS5734Telkom SA Ltd. - Telkom SA Ltd. ZA94,976

AS37167Telkom SA Ltd. - Telkom SA Ltd. ZA768

Similar-sized networks in South Africa

ASNNameIPv4 addresses

AS37145#390 Umoya Networks - Umoya Networks1,024

AS37159#391 Alexandre Miller cc t/a Imaginet - Alexandre Miller cc t/a Imaginet1,024

AS37160#392 Grindrod Management Services (Pty) Ltd - Grindrod Management Services (Pty) Ltd1,024

AS37275#394 ETC (Pty) Ltd - ETC (Pty) Ltd1,024

AS209167#395 TCC TERACOM COMMUNICATIONS (PTY) LTD1,024

AS327772#396 Fulloutput 1086 cc - Fulloutput 1086 cc1,024

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