$ query “AS3741” --type=asn → 1 result(s)

AS3741 · NTT-DATA-INC

Dimension Data

AS3741 belongs to Dimension Data and is a major transit provider, registered in South Africa since 2006. The system announces an impressive 2.9 million IPv4 addresses, including a /13, and supports IPv6. Most of its address space is geolocated to South Africa, with additional presence in Germany and the United States, and a smaller footprint in another country. This AS's prefix announcements have been recently modified.

  • Top 5% — Top 5% of all autonomous systems by reach and degree
  • #98 by Reach — Top 100 by customer cone size
  • #1 in South Africa — Top 10 by reach within country

Basic Information

Country
🇿🇦 South Africa
Category
Internet Service Provider
Network Role
Major Transit
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Registered
October 14, 2006
Last Changed
October 01, 2026
Last Seen
October 10, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
493 / 306
IPv6 Prefixes (raw / aggregated)
3 / 2
IPv4 Addresses
2 942 464
Largest IPv4 Prefix
/13 (524 288 addresses)
Largest IPv6 Prefix
/27
Geolocated Countries
🇿🇦 South Africa (2 941 440 IPs), 🇩🇪 Germany (512 IPs), 🇺🇸 United States (256 IPs) and 1 more
Prefix Changed
October 11, 2026

Reputation

Reputation
Good — 4 flagged IPs out of 2 942 464 total (0.00%)

Connectivity Summary

Upstream Providers
6 upstreams providing transit
Peers
715 networks exchanging traffic without transit
Downstream Customers
212 downstreams buying transit
Unclassified
4 unclassified BGP neighbors
Degree
937 unique BGP neighbors
Reach
621 networks in customer cone

Upstream Providers (6)

  • AS3356 — LEVEL3 (Tier-1 transit)
  • AS174 — COGENT-174 (Tier-1 transit)
  • AS2914 — NTT-DATA-2914 (Tier-1 transit)
  • AS6204 — ZET-NET
  • AS3491 — PCCWG-APAC-HK (Tier-1 transit)
  • AS6453 — AS6453 (Tier-1 transit)

Prefix Lists

IPv4 Prefixes (493 total)

  • 196.208.0.0/13 (524 288 addresses (/13 prefix))
  • 197.96.0.0/13 (524 288 addresses (/13 prefix))
  • 164.148.0.0/14 (262 144 addresses (/14 prefix))
  • 196.36.0.0/14 (262 144 addresses (/14 prefix))
  • 196.34.0.0/15 (131 072 addresses (/15 prefix))
  • 139.53.0.0/16 (65 536 addresses (/16 prefix))
  • 155.234.0.0/16 (65 536 addresses (/16 prefix))
  • 155.237.0.0/16 (65 536 addresses (/16 prefix))
  • 155.240.0.0/16 (65 536 addresses (/16 prefix))
  • 156.8.0.0/16 (65 536 addresses (/16 prefix))
  • 160.123.0.0/16 (65 536 addresses (/16 prefix))
  • 163.203.0.0/16 (65 536 addresses (/16 prefix))
  • 165.4.0.0/16 (65 536 addresses (/16 prefix))
  • 168.89.0.0/16 (65 536 addresses (/16 prefix))
  • 168.142.0.0/16 (65 536 addresses (/16 prefix))
  • 168.209.0.0/16 (65 536 addresses (/16 prefix))
  • 168.210.0.0/16 (65 536 addresses (/16 prefix))
  • 196.14.0.0/16 (65 536 addresses (/16 prefix))
  • 196.23.0.0/16 (65 536 addresses (/16 prefix))
  • 196.26.0.0/16 (65 536 addresses (/16 prefix))
  • 196.33.0.0/16 (65 536 addresses (/16 prefix))
  • 197.84.192.0/18 (16 384 addresses (/18 prefix))
  • 196.10.160.0/19 (8 192 addresses (/19 prefix))
  • 152.111.16.0/20 (4 096 addresses (/20 prefix))
  • 196.1.32.0/20 (4 096 addresses (/20 prefix))
  • 196.4.224.0/20 (4 096 addresses (/20 prefix))
  • 196.12.16.0/20 (4 096 addresses (/20 prefix))
  • 196.22.32.0/20 (4 096 addresses (/20 prefix))
  • 196.45.96.0/20 (4 096 addresses (/20 prefix))
  • 197.86.16.0/20 (4 096 addresses (/20 prefix))
  • 41.77.104.0/21 (2 048 addresses (/21 prefix))
  • 163.199.104.0/21 (2 048 addresses (/21 prefix))
  • 192.96.120.0/21 (2 048 addresses (/21 prefix))
  • 196.1.16.0/21 (2 048 addresses (/21 prefix))
  • 196.4.176.0/21 (2 048 addresses (/21 prefix))
  • 196.4.216.0/21 (2 048 addresses (/21 prefix))
  • 196.10.152.0/21 (2 048 addresses (/21 prefix))
  • 196.10.192.0/21 (2 048 addresses (/21 prefix))
  • 197.85.184.0/21 (2 048 addresses (/21 prefix))
  • 198.54.24.0/21 (2 048 addresses (/21 prefix))
  • 198.54.32.0/21 (2 048 addresses (/21 prefix))
  • 200.16.8.0/21 (2 048 addresses (/21 prefix))
  • 204.235.32.0/21 (2 048 addresses (/21 prefix))
  • 41.86.116.0/22 (1 024 addresses (/22 prefix))
  • 102.65.32.0/22 (1 024 addresses (/22 prefix))
  • 152.111.8.0/22 (1 024 addresses (/22 prefix))
  • 152.111.32.0/22 (1 024 addresses (/22 prefix))
  • 152.111.44.0/22 (1 024 addresses (/22 prefix))
  • 152.111.132.0/22 (1 024 addresses (/22 prefix))
  • 152.111.172.0/22 (1 024 addresses (/22 prefix))

IPv6 Prefixes (3 total)

  • 2c0f:fc00::/27
  • 2c0f:f400:10fe::/47