AS39074 — IR-SEPANTA SEPANTA Internet and MPLS services provider co.

AS39074 announces 28 IPv4 prefixes covering 16,640 addresses and 1 IPv6 prefixes.

About this network

IR-SEPANTA is operated by Sepanta Communication Development Co. Ltd.

What it's used for

• The address space carries subscriber access traffic, evidenced by reverse DNS entries such as 85.133.187.254.pos-1-0.7tir.sepanta.net and 85.133.129.255.sepanta.net.
• The AS announces 16,128 IPv4 addresses across 28 prefixes and 1 IPv6 prefix, while maintaining only 3 observed routing neighbours.
• This high address-to-neighbour ratio indicates an access or eyeball network rather than a transit provider, consistent with Sepanta's role as an internet service provider in Tehran.

Notable

• Registrants for the largest prefixes are listed as "Public Role" or "Sepanta Communication Development Co. Ltd", aligning with the AS holder.
• The inventory consists primarily of /22 and /23 blocks within the 85.133.0.0/16 range, with a single /20 block.
• The network has been visible in routing tables since 2006.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 85.133.128.0/22
• 85.133.132.0/23
• 85.133.135.0/24
• 85.133.136.0/22
• 85.133.141.0/24
• 85.133.142.0/24
• 85.133.145.0/24
• 85.133.146.0/23
• 85.133.148.0/23
• 85.133.150.0/24
• 85.133.154.0/23
• 85.133.156.0/22
• 85.133.164.0/22
• 85.133.168.0/24
• 85.133.171.0/24
• 85.133.172.0/22
• 85.133.176.0/20
• 85.133.192.0/24
• 85.133.209.0/24
• 85.133.210.0/23
• 85.133.212.0/23
• 85.133.218.0/24
• 85.133.222.0/23
• 85.133.231.0/24
• 85.133.232.0/24
• 85.133.235.0/24
• 85.133.251.0/24
• 85.133.255.0/24
• 2a04:87c1::/32

Upstream networks

• AS49100 Pishgaman Toseeh Ertebatat Company (Private Joint Stock)

Downstream networks

• AS57986 Sigma IT Infrastructures Development Co. (Ltd.)
• AS61246 IRAN METEOROLOGICAL ORGANIZATION
• AS62039 Iran Power Plant Projects Management (MAPNA) PJS

Adjacent networks

• AS49100 Pishgaman Toseeh Ertebatat Company (Private Joint Stock)
• AS57986 Sigma IT Infrastructures Development Co. (Ltd.)
• AS61246 IRAN METEOROLOGICAL ORGANIZATION
• AS62039 Iran Power Plant Projects Management (MAPNA) PJS

Routing security

• RPKI: 66 valid, 0 invalid and 0 not-found announcements; 94 ROAs.
• ASPA: 1 authorised providers.
• IRR: 95% of announcements registered; 99 route objects.
• Listed in as-sets: AS-AF81NET, AS-ASIATECH, AS-DCI, AS-HURRICANE, AS-IR-ASN, AS-PISHGAMAN, AS-RESPINA, AS-RETN-ACTUAL-V4, AS-SET-SPNT, AS-SHATEL, AS-TICGW, AS-TICIR, AS-TRANSROUTE-SPEC, AS263813:AS-CUSTOMER2, AS266748:AS-CUSTOMERS, AS34984:AS-TELLCOM, AS41194:AS-RASCOM, AS50810:AS-DOWNSTREAMS, AS7473:AS-CUSTOMERS:AS12880.