subnet.im

AS20011Dimension Data

South AfricaRegistryAFRINIC

As of 26th September 2026, AS20011 (Dimension Data), a network registered in South Africa with AFRINIC, originates 1,119 IPv4 prefixes covering 1.4M addresses and 3 IPv6 prefixes. By IPv4 address space that makes it the 374th-largest of the 79,480 networks we see originating IPv4, and the 10th-largest of 653 in South Africa. It is seen behind 6 upstream networks, most often AS3741 (Dimension Data) and AS37497 (Network Platforms (PTY) LTD), and in front of 3 downstream networks. Over 99% of its announcements have a valid RPKI ROA; 1 is RPKI-invalid. 50% of its routes reach at least 90% of full-feed peers, and 312 prefixes are also originated by another network.

At a glance

IPv4 prefixes

1,119

IPv6 prefixes

3

IPv4 addresses

1.4M

IPv6 /64s

4.3B

Upstream graph

The networks AS20011 is seen behind, one and two hops out, drawn from real AS paths.

AS20011Toward the internet core
Upstream graph for AS20011: 11 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS20011Dimension DataThis networkAS3741Dimension DataAS37100SEACOM LimitedAS37468Angola CablesAS37497Network Platforms…AS58453China Mobile Inte…AS2914NTT America, Inc.AS6453TATA Communicatio…AS3257GTT Communication…AS3356Lumen (Level 3)AS3491PCCW Global (HK) …AS1299Arelion (fka. Tel…

Networks observed one and two hops upstream of AS20011 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

51

adjacent networks

Upstreams
612%
Peers
4282%
Downstreams
36%

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

Upstreams of AS20011
NetworkCountryRelationshipPathsVantage pts
AS3741Dimension DataZAPeer48,374143
AS37497Network Platforms (PTY) LTDZAPeer1,0862
AS37100SEACOM LimitedMUPeer1,0821
AS37468Angola CablesAOPeer1,0231
AS58453China Mobile InternationalHKPeer8084
AS6939Hurricane Electric LLCUSPeer6469

Prefixes

All 1,122

The largest blocks AS20011 originates, widest first.

Largest prefixes originated by AS20011
PrefixAddressesVisibility
152.110.0.0/1665.5k81/81
196.39.0.0/1665.5k81/81
196.210.0.0/1665.5k80/81
152.110.0.0/1732.8k81/81
152.110.128.0/1732.8k81/81
196.39.128.0/1732.8k81/81
196.210.0.0/1732.8k80/81
197.93.0.0/1732.8k81/81
197.95.0.0/1732.8k81/81
41.132.0.0/1816.4k81/81

Routing health

How AS20011'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

  • Valid99.9%1,121
  • Invalid<0.1%1
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more50.0%561
  • Partially propagated40% to 90%4.1%46
  • Seen by few peersUnder 40%45.9%515

Prefix sizes

IPv4 — 1,119 prefixes

IPv6 — 3 prefixes

  • /324.3B × /6433.3%1
  • /441M × /6466.7%2

Recent changes

Announcements that started or stopped since 27th Aug 2026.

48 announced and 1 withdrawn in all; the most recent are shown.

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