asn.dev

Autonomous system

AS200453 STPR-AS AO Institute Stroyproekt (JSC)

Unclassified RIPE

IPv4 addresses 256 1 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly RU
Exchanges 0 recorded by PCH
Upstreams 3 0 downstream
Flagged prefixes 0 none

Summary

AO Institute Stroyproekt

Russian Federation · AI-generated

business engineering corporate

STPR-AS is held by AO Institute Stroyproekt (JSC).

What it's used for

  • The address space carries corporate infrastructure, identified by the netname Institute-Stroyproekt-subnet-7045760 and registrant AO Institute Stroyproekt (JSC).
  • The AS announces 256 IPv4 addresses across 1 prefix with 3 observed neighbours, a ratio consistent with a small internal corporate estate rather than a transit or access network.
  • Traffic from this AS consists of office workers and engineering staff accessing internal systems and the internet, as the operator is a major Russian design and engineering firm.

Notable

  • The RDAP registrant AO Institute Stroyproekt (JSC) matches the registry holder and the AS handle STPR-AS.
  • The address inventory consists of a single /24 block, 46.46.190.0/24, with no IPv6 prefixes announced.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

3 upstream, 0 downstream and 3 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS57304JSC "RetnNet"53
AS20632PJSC MegaFon5
AS9002RETN Limited2

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-01, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 1 prefixes · 256 addresses IPv6 0 prefixes

CountryNamePrefixes
RURussian Federation1

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS200453
Registry name
STPR-AS
Registrant
MNT-RETNRU
Abuse contact
abuse@stpr.ru
Registered
2022-12-19
Last changed
2022-12-19
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 1 valid, 0 with no ROA
ROAs
1 authorising AS200453
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
1 naming AS200453

Reputation

Classification and threat

Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.

Spamhaus DROP

Not on ASN-DROP The network as a whole is not listed.

No DROP prefixes None of its announced space is on the DROP prefix list.

Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 447 networks and 1,843 prefixes, as published 2026-11-02. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.

FBI IC3

No IC3 indicators Nothing from the FBI IC3 feed.

IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check