subnet.im

AS37457Telkom SA Ltd.

South AfricaRegistryAFRINICTypeEyeball

As of 23rd October 2026, AS37457 (Telkom SA Ltd.), an access network registered in South Africa with AFRINIC, originates 1,661 IPv4 prefixes covering 3.1M addresses and 10 IPv6 prefixes. By IPv4 address space that makes it the 195th-largest of the 79,652 networks we see originating IPv4, and the 4th-largest of 653 in South Africa. It is seen behind 7 upstream networks, most often AS6939 (Hurricane Electric LLC) and AS3741 (Dimension Data), and in front of 5 downstream networks. 89% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. Under 1% of its routes reach at least 90% of full-feed peers, and 4 prefixes are also originated by another network.

At a glance

IPv4 prefixes

1,661

IPv6 prefixes

10

IPv4 addresses

3.1M

IPv6 /64s

151B

Upstream graph

The networks AS37457 is seen behind, one and two hops out, drawn from real AS paths.

AS37457Toward the internet core
Upstream graph for AS37457: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS37457Telkom SA Ltd.This networkAS3741Dimension DataAS5713Telkom SA Ltd.AS6939Hurricane Electri…AS37100SEACOM LimitedAS37497Network Platforms…AS174Cogent Communicat…AS2914NTT America, Inc.AS18106Viewqwest Pte LtdAS20130Depaul UniversityAS3491PCCW Global (HK) …AS6453TATA Communicatio…AS1299Arelion (fka. Tel…

Networks observed one and two hops upstream of AS37457 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

55

adjacent networks

Upstreams
713%
Peers
4378%
Downstreams
59%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS37457
NetworkCountryRelationshipPathsVantage pts
AS6939Hurricane Electric LLCUSPeer5,57935
AS3741Dimension DataZAPeer1,6591
AS5713Telkom SA Ltd.ZAPeer1,618102
AS37497Network Platforms (PTY) LTDZAPeer5222
AS37100SEACOM LimitedMUPeer4671
AS58453China Mobile InternationalHKPeer4441
AS37468Angola CablesAOPeer3271

Prefixes

All 1,671

The largest blocks AS37457 originates, widest first.

Largest prefixes originated by AS37457
PrefixAddressesVisibility
105.184.0.0/14262k77/77
105.224.0.0/14262k77/77
105.228.0.0/15131k77/77
197.228.0.0/15131k77/77
41.144.0.0/1665.5k16/77
41.149.0.0/1665.5k16/77
102.248.0.0/1665.5k16/77
102.249.0.0/1665.5k16/77
102.250.0.0/1665.5k16/77
102.251.0.0/1665.5k16/77

Routing health

How AS37457's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid89.0%1,487
  • Invalid0.0%0
  • No ROA11.0%184

Propagation

  • Globally propagated90% of full-feed peers or more0.8%14
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%99.2%1,657

Prefix sizes

IPv4 — 1,661 prefixes

IPv6 — 10 prefixes

  • /2868.7B × /6420.0%2
  • /324.3B × /6430.0%3
  • /341.1B × /6410.0%1
  • /418.4M × /6420.0%2
  • /45524k × /6420.0%2

Recent changes

Announcements that started or stopped since 23rd Sept 2026.

  • Announced105.228.12.0/2218th Oct 2026
  • Announced105.228.16.0/2218th Oct 2026
  • Announced105.228.28.0/2218th Oct 2026
  • Announced105.228.4.0/2218th Oct 2026
  • Announced105.228.8.0/2218th Oct 2026
  • Withdrawn105.228.12.0/2217th Oct 2026
  • Withdrawn105.228.16.0/2217th Oct 2026
  • Withdrawn105.228.28.0/2217th Oct 2026
  • Withdrawn105.228.4.0/2217th Oct 2026
  • Withdrawn105.228.8.0/2217th Oct 2026

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.