AS12091 — MTNNS-1

AS12091 announces 36 IPv4 prefixes covering 1,254,144 addresses and 1 IPv6 prefixes.

About this network

The South African mobile network of MTN Group, the Johannesburg-headquartered operator that runs mobile businesses across much of Africa and parts of the Middle East.

What it's used for

• Mobile voice and data for one of South Africa's two largest subscriber bases, alongside fixed-wireless and business connectivity.

Notable

• A little over 1.2 million IPv4 addresses across 36 prefixes, every one of them registered to MTN SA in AFRINIC. For a network this size that is unusually tidy — no leased blocks, no third-party registrants, just one operator holding its own space.
• The addressing is characteristically African: 41.0.0.0/8 and 197.0.0.0/8 blocks issued by AFRINIC well after the early RIR allocations, plus a single 2c0f:: IPv6 prefix.

Interesting

• MTN competes directly with Vodacom here, and the two of them are the main on-ramp to the internet in a market where mobile data long outpaced fixed broadband. Addresses in this space are typically handsets behind carrier-grade NAT rather than one device per address.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 41.112.0.0/19
• 41.112.32.0/20
• 41.112.64.0/19
• 41.112.144.0/20
• 41.112.160.0/20
• 41.112.224.0/19
• 41.113.0.0/16
• 41.114.0.0/15
• 41.116.0.0/15
• 41.119.0.0/16
• 41.120.0.0/19
• 41.120.128.0/17
• 41.121.0.0/16
• 41.122.0.0/15
• 41.124.0.0/16
• 41.125.64.0/18
• 41.125.128.0/17
• 41.126.0.0/16
• 41.127.255.0/24
• 66.8.3.0/24
• 66.8.4.0/23
• 66.8.8.0/23
• 66.8.10.0/24
• 105.209.64.0/19
• 105.209.255.0/24
• 196.10.101.0/24
• 196.11.239.0/24
• 196.11.240.0/22
• 196.11.244.0/23
• 196.13.230.0/23
• 196.31.56.0/24
• 197.64.0.0/15
• 197.66.0.0/16
• 197.68.0.0/15
• 197.70.0.0/17
• 197.78.128.0/17
• 2c0f:fb08:ff00::/40

Upstream networks

• AS16637 MTN SA

Adjacent networks

• AS16637 MTN SA