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AS3741Dimension Data

South AfricaRegistryAFRINICTypeEyeball

As of 10th November 2026, AS3741 (Dimension Data), an access network registered in South Africa with AFRINIC, originates 538 IPv4 prefixes covering 3.4M addresses and 4 IPv6 prefixes. By IPv4 address space that makes it the 183rd-largest of the 80,723 networks we see originating IPv4, and the 3rd-largest of 657 in South Africa. It is seen behind 48 upstream networks, most often AS2914 (NTT America, Inc.) and AS3356 (Lumen (Level 3)), and in front of 97 downstream networks. 70% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 91% of its routes reach at least 90% of full-feed peers, and 1 prefix is also originated by another network.

At a glance

IPv4 prefixes

538

IPv6 prefixes

4

IPv4 addresses

3.4M

IPv6 /64s

137B

Upstream graph

The networks AS3741 is seen behind, one and two hops out, drawn from real AS paths.

AS3741Toward the internet core
Upstream graph for AS3741: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS3741Dimension DataThis networkAS174Cogent Communicat…AS2914NTT America, Inc.AS3356Lumen (Level 3)AS3491PCCW Global (HK) …AS6939Hurricane Electri…AS1299Arelion (fka. Tel…AS151326DCConnect Communi…AS49544i3D.net B.VAS215859Hetzner Cloud - S…AS3549Lumen (fka. Globa…AS24516Virtutel Pty LtdAS58511Swoop (Anycast Gl…

Networks observed one and two hops upstream of AS3741 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

1,027

adjacent networks

Upstreams
485%
Peers
88286%
Downstreams
979%

Networks carrying this one's traffic toward the rest of the internet. Listing the 40 seen on the most AS paths, of 48.

Upstreams of AS3741
NetworkCountryRelationshipPathsVantage pts
AS2914NTT America, Inc.USPeer29,766137
AS3356Lumen (Level 3)USPeer23,30650
AS174Cogent Communications, LLCUSPeer12,80731
AS3491PCCW Global (HK) Ltd.HKPeer7,91719
AS6939Hurricane Electric LLCUSPeer4,00669
AS6667Elisa OyjFIPeer3,8624
AS18106Viewqwest Pte LtdSGPeer3,5854
AS13030Init7 (Switzerland) Ltd.CHPeer3,1185
AS25091IP-Max SACHPeer2,8083
AS41811CONVERGENCE (GROUP NETWORKS) LIMITEDGBPeer2,2011

Prefixes

All 542

The largest blocks AS3741 originates, widest first.

Largest prefixes originated by AS3741
PrefixAddressesVisibility
196.208.0.0/13524k75/76
197.96.0.0/13524k75/76
196.36.0.0/14262k76/76
196.208.0.0/14262k76/76
196.34.0.0/15131k76/76
139.53.0.0/1665.5k76/76
155.234.0.0/1665.5k76/76
155.237.0.0/1665.5k76/76
155.240.0.0/1665.5k76/76
156.8.0.0/1665.5k76/76

Routing health

How AS3741'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

  • Valid70.3%381
  • Invalid0.0%0
  • No ROA29.7%161

Propagation

  • Globally propagated90% of full-feed peers or more91.0%493
  • Partially propagated40% to 90%0.6%3
  • Seen by few peersUnder 40%8.5%46

Prefix sizes

IPv4 — 538 prefixes

IPv6 — 4 prefixes

  • /27137B × /6425.0%1
  • /4865.5k × /6475.0%3

Recent changes

Announcements that started or stopped since 11th Oct 2026.

52 announced and 6 withdrawn in all; the most recent are shown.

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