AS3741Dimension Data
South AfricaRegistryAFRINICTypeEyeballAs of 26th September 2026, AS3741 (Dimension Data), an access network registered in South Africa with AFRINIC, originates 505 IPv4 prefixes covering 3.7M addresses and 3 IPv6 prefixes. By IPv4 address space that makes it the 169th-largest of the 79,480 networks we see originating IPv4, and the 3rd-largest of 653 in South Africa. It is seen behind 52 upstream networks, most often AS2914 (NTT America, Inc.) and AS3356 (Lumen (Level 3)), and in front of 861 downstream networks. 66% 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.
At a glance
IPv4 prefixes
IPv6 prefixes
IPv4 addresses
IPv6 /64s
Upstream graph
The networks AS3741 is seen behind, one and two hops out, drawn from real AS paths.
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
1,801
adjacent networks
- Upstreams
- 523%
- Peers
- 88849%
- Downstreams
- 86148%
Networks carrying this one's traffic toward the rest of the internet. Listing the 40 seen on the most AS paths, of 52.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS2914NTT America, Inc. |  US | Peer | 26,849 | 63 |
| AS3356Lumen (Level 3) | US | Peer | 16,282 | 37 |
| AS3491PCCW Global (HK) Ltd. |  HK | Peer | 8,824 | 15 |
| AS174Cogent Communications, LLC | US | Peer | 8,460 | 34 |
| AS6939Hurricane Electric LLC | US | Peer | 5,355 | 69 |
| AS6667Elisa Oyj |  FI | Peer | 3,544 | 4 |
| AS18106Viewqwest Pte Ltd |  SG | Peer | 3,263 | 4 |
| AS38880Micron21 Datacentre Pty Ltd |  AU | Peer | 3,066 | 2 |
| AS13030Init7 (Switzerland) Ltd. |  CH | Peer | 2,881 | 4 |
| AS25091IP-Max SA | CH | Peer | 2,876 | 4 |
Prefixes
All 508The largest blocks AS3741 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 196.208.0.0/13 | 524k | 80/81 |
| 197.96.0.0/13 | 524k | 80/81 |
| 164.148.0.0/14 | 262k | 81/81 |
| 196.36.0.0/14 | 262k | 81/81 |
| 196.208.0.0/14 | 262k | 81/81 |
| 196.34.0.0/15 | 131k | 81/81 |
| 139.53.0.0/16 | 65.5k | 81/81 |
| 155.234.0.0/16 | 65.5k | 81/81 |
| 155.237.0.0/16 | 65.5k | 81/81 |
| 155.240.0.0/16 | 65.5k | 81/81 |
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
- Valid66.1%336
- Invalid0.0%0
- No ROA33.9%172
Propagation
- Globally propagated90% of full-feed peers or more90.9%462
- Partially propagated40% to 90%8.7%44
- Seen by few peersUnder 40%0.4%2
Prefix sizes
IPv4 — 505 prefixes
IPv6 — 3 prefixes
- /27137B × /6433.3%1
- /4865.5k × /6466.7%2
Recent changes
Announcements that started or stopped since 27th Aug 2026.
- Withdrawn152.111.102.0/2421st Sept 2026
- Withdrawn152.111.106.0/2321st Sept 2026
- Withdrawn152.111.106.0/2421st Sept 2026
- Withdrawn152.111.139.0/2421st Sept 2026
- Withdrawn152.111.142.0/2421st Sept 2026
- Withdrawn152.111.189.0/2421st Sept 2026
- Withdrawn152.111.203.0/2421st Sept 2026
- Withdrawn152.111.205.0/2421st Sept 2026
- Withdrawn152.111.209.0/2421st Sept 2026
- Withdrawn152.111.213.0/2421st Sept 2026
- Withdrawn152.111.214.0/2421st Sept 2026
- Withdrawn152.111.217.0/2421st Sept 2026
0 announced and 45 withdrawn in all; the most recent are shown.
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.