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AS211421Asiatech Data Transmission company

IranRegistryRIPE NCC

As of 26th September 2026, AS211421 (Asiatech Data Transmission company), a network registered in Iran with RIPE NCC, originates 8 IPv4 prefixes covering 2.3k addresses. By IPv4 address space that makes it the 24,092nd-largest of the 79,516 networks we see originating IPv4, and the 160th-largest of 572 in Iran. It is seen behind 2 upstream networks, most often AS43754 (Asiatech Data Transmission company) and AS41797 (Apadana Ceram Co PJSC), and in front of 14 downstream networks. Every one of its announcements has 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

8

IPv6 prefixes

0

IPv4 addresses

2.3k

IPv6 /64s

0

Upstream graph

The networks AS211421 is seen behind, one and two hops out, drawn from real AS paths.

AS211421Toward the internet core
Upstream graph for AS211421: 4 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS211421Asiatech Data Tra…This networkAS41797Apadana Ceram Co …AS43754Asiatech Data Tra…AS42337Respina Networks …AS41689Asiatech Data Tra…

Networks observed one and two hops upstream of AS211421 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

33

adjacent networks

Upstreams
26%
Peers
1752%
Downstreams
1442%

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

Upstreams of AS211421
NetworkCountryRelationshipPathsVantage pts
AS43754Asiatech Data Transmission companyIRPeer7,85581
AS41797Apadana Ceram Co PJSCIRPeer8181

Prefixes

The largest blocks AS211421 originates, widest first.

Largest prefixes originated by AS211421
PrefixAddressesVisibility
80.249.112.0/2351281/81
94.184.9.0/2425681/81
94.184.16.0/2425681/81
152.89.44.0/2425681/81
152.89.45.0/2425681/81
152.89.46.0/2425681/81
152.89.47.0/2425681/81
213.109.199.0/2425681/81

Routing health

How AS211421'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

  • Valid100.0%8
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%8
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 8 prefixes

Recent changes

Announcements that started or stopped since 28th Aug 2026.

No announcement by AS211421 started or stopped in this period.

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