asn.dev

Autonomous system

AS57397 SPEX

Unclassified RIPE

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

Summary

SPEX

Turkey · AI-generated

business cybersecurity software

The AS handle SPEX is held by SPEX Yazılım ve Siber Güvenlik Hizmetleri Anonim Şirketi.

What it's used for

  • The address space carries corporate infrastructure, indicated by the netnames STERLY_Veri-Merkezi_AS (Sterly Data Center) and Spex-Yazilim-AS.
  • The inventory consists of 512 IPv4 addresses across 2 prefixes, with a single observed neighbour, implying a direct peering or transit relationship for a small, self-contained corporate network.
  • Traffic from this AS represents internal business operations for a software and cybersecurity firm, including office workers and web/API endpoints, rather than residential subscriber traffic.

Notable

  • Registrants align with the announcer, listing STERLY VERI MERKEZI YAZILIM VE SIBER GUVENLIK HIZMETLERI A.S. and SPEX-AS for the respective prefixes.
  • The address inventory is small and finely subdivided into two /24 blocks, consistent with an internal corporate estate rather than a large access network.

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

1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS48678Pentech Bilisim Teknolojileri Sanayi Ve Ticaret Limited Sirketi58

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-19, 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
TRTurkey1

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS57397
Registry name
SPEX
Registrant
bggroupittelecom-mnt
Abuse contact
info@spex.com.tr
Registered
2022-10-24
Last changed
2026-08-25
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 1 valid, 0 with no ROA
ROAs
1 authorising AS57397
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
1 naming AS57397

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: 442 networks and 1,783 prefixes, as published 2026-10-20. 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