AS43754Asiatech Data Transmission company
As of 26th September 2026, AS43754 (Asiatech Data Transmission company), an access network registered in Iran with RIPE NCC, originates 317 IPv4 prefixes covering 527k addresses and 16 IPv6 prefixes. By IPv4 address space that makes it the 697th-largest of the 79,516 networks we see originating IPv4, and the 6th-largest of 572 in Iran. It is seen behind 1 upstream network, most often AS41689 (Asiatech Data Transmission company), and in front of 87 downstream networks. Over 99% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 100% 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 AS43754 is seen behind, one and two hops out, drawn from real AS paths.
Networks observed one and two hops upstream of AS43754 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
178
adjacent networks
- Upstreams
- 11%
- Peers
- 9051%
- Downstreams
- 8749%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS41689Asiatech Data Transmission company | Peer | 171,584 | 145 |
Prefixes
All 333The largest blocks AS43754 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 46.143.0.0/17 | 32.8k | 81/81 |
| 79.127.0.0/17 | 32.8k | 81/81 |
| 86.57.0.0/17 | 32.8k | 81/81 |
| 164.215.128.0/17 | 32.8k | 81/81 |
| 46.245.64.0/18 | 16.4k | 81/81 |
| 79.127.0.0/18 | 16.4k | 81/81 |
| 79.127.64.0/18 | 16.4k | 81/81 |
| 164.215.128.0/18 | 16.4k | 81/81 |
| 164.215.192.0/18 | 16.4k | 81/81 |
| 46.143.0.0/19 | 8.2k | 81/81 |
Routing health
How AS43754'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
- Valid99.7%332
- Invalid0.0%0
- No ROA0.3%1
Propagation
- Globally propagated90% of full-feed peers or more100.0%333
- Partially propagated40% to 90%0.0%0
- Seen by few peersUnder 40%0.0%0
Prefix sizes
IPv4 — 317 prefixes
IPv6 — 16 prefixes
- /26275B × /646.3%1
- /2934.4B × /6418.8%3
- /3017.2B × /646.3%1
- /324.3B × /646.3%1
- /37134M × /6450.0%8
- /4865.5k × /6412.5%2
Recent changes
Announcements that started or stopped since 27th Aug 2026.
- Announced185.189.120.0/2422nd Sept 2026
- Announced2a04:f080::/2922nd Sept 2026
- Announced2a05:1a00:1000::/3722nd Sept 2026
- Announced2a05:1a00:1800::/3722nd Sept 2026
- Announced2a05:1a00:2000::/3722nd Sept 2026
- Announced2a05:1a00:2800::/3722nd Sept 2026
- Announced2a05:1a00:3000::/3722nd Sept 2026
- Announced2a05:1a00:3800::/3722nd Sept 2026
- Announced2a05:1a00:800::/3722nd Sept 2026
- Announced2a05:1a00::/2622nd Sept 2026
- Announced2a05:1a00::/3722nd Sept 2026
- Announced2a05:1a10:2001::/4822nd Sept 2026
17 announced and 0 withdrawn in all; the most recent are shown.
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.