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Autonomous System

AS51074 · GOSTARESH-E-ERTEBATAT-E MABNA COMPANY (Private Joint Stock)

Overview

AS51074 is announced on the Internet: RIPE RIS route collectors currently see 6 IPv4 prefixes and 1 IPv6 prefix originated by this network. Together, its IPv4 prefixes cover 34,304 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 2 upstream neighbours (transit providers or peers) and 26 downstream neighbours (customers or networks it carries). Its most visible upstreams are Asiatech Data Transmission company (AS43754) and Iran Information Technology Company PJSC (AS12880). AS51074 was assigned by RIPE NCC, and its registration country is Iran.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 17, 2026 at 9:44 AM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 31.184.128.1, the first address of 31.184.128.0/18. An address picked inside a prefix may not answer (nothing listens there, or the network filters probes): the trace then shows the path up to the last network that replies.

Announced prefixes

IPv4 prefixes (6 prefixes)

PrefixAddresses
31.184.128.0/1816,384
37.130.200.0/23512
37.130.202.0/23512
178.252.128.0/1816,384
178.252.138.0/24256
185.115.148.0/23512

IPv6 prefixes (1 prefix)

Prefix
2a02:2b58::/29

Neighbours

Upstreams (transit or peers) (2)

ASNetworkVisibility
AS43754Asiatech Data Transmission company10,148
AS12880Iran Information Technology Company PJSC268

Downstreams (customers) (26)

ASNetworkVisibility
AS61173Green Web Samaneh Novin PJSC1,446
AS206596Computer Research Center of Islamic Sciences1,124
AS35766Mizbani Dadehaye Mabna PJSC583
AS205550Tejarat Iranian Technology infrastructure PJSC403
AS41620Iran University Of Science and Technology327
AS56375Imam Khomeini Relief Foundation IKRF299
AS42043BertinaTechnologyCompany Parsian High Tech Company PJSC287
AS51241Islamic Republic of Iran Post PJSC287
AS215974Taliya Taliya Communicational Development Company (Private Joint Stock)287
AS39571Sadad Informatics Corporation PJSC283
AS204781-283
AS41856-282
AS50177-282
AS59708-282
AS21170-281
AS52070-281
AS57292-281
AS42019-280
AS50114-280
AS59501-280
AS206862-263
AS13231-262
AS208231-262
AS207920-258
AS208246-4
AS59431-1

Visibility is RIPEstat's count of how often the route collectors observed the link. It compares neighbours with each other; it is not a traffic volume.

How to read this page

An Autonomous System (AS) is a network run under one routing policy: an internet provider, a cloud, a content network, a university. Each one has a number, its ASN, assigned by a regional registry (ARIN, RIPE NCC, APNIC, LACNIC, AFRINIC), and uses BGP, the protocol networks use to tell each other where addresses are, to announce the blocks of addresses it delivers to.

A prefix such as 203.0.113.0/24 is a block of addresses: the number after the slash says how many bits are fixed, so a /24 holds 256 IPv4 addresses and a /16 holds 65,536. Networks often announce a large block and smaller pieces of it at the same time, which is why the address total counts each address once.

Neighbours come from the paths themselves. A network that appears just before this one in a path, on the collector's side, is an upstream: a transit provider or a peer. One that appears just after it is a downstream, usually a customer. Peering at an internet exchange also shows up as an upstream, so the upstream list is not a list of paid transit.

The data comes from RIPEstat, run by the RIPE NCC, which gathers the routing tables of hundreds of networks through its RIS route collectors. This page reads it when it is visited and keeps it for 12 hours at most; the BGP viewer reads it live.

Frequently asked questions

How do I find the ASN of an IP address?
Type the address in the BGP viewer: it shows the prefix that covers it, the AS that originates that prefix and the paths seen towards it. A traceroute also names the network of each hop, so you can see every AS a connection crosses.
Why does one company have several ASNs?
Large operators split their network by region, by activity or by history: a cloud may use one number for its backbone and another for a region, and every acquisition brings its own numbers. Each number has its own page, with its own prefixes and neighbours.
Why do prefix counts differ from one site to another?
Each source sees the routing table from different collectors, at a different time, and counts differently: some include prefixes withdrawn in recent weeks, some merge a block and its pieces. This page counts the prefixes RIPE RIS collectors see originated by the network at the end of the latest two-week window, and counts each IPv4 address once.
Is this the list of IP ranges of a cloud provider?
It is what its networks announce, which is what the Internet routes to them. Many providers also publish an official list of ranges per service and region; that list is the reference for firewall rules, because a range can be announced before it is used, or announced by another of their AS numbers.