asn.dev

Autonomous system

AS203321 RETVO

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

100 Derece Bilisim A.S.

Turkey · AI-generated

business turkey static

RETVO is operated by 100 Derece Bilisim A.S.

What it's used for

  • The address space carries static endpoints, as indicated by reverse DNS records such as static-64-254-142-94.retvo.com and the netname TR-100DERECE-20220829.
  • The AS announces 256 IPv4 addresses across 1 prefix with 1 observed neighbour, a ratio consistent with a small-scale business or internal corporate network rather than a transit provider.
  • Traffic from this AS consists of static web or API endpoints associated with the operator's business operations in Ankara.

Notable

  • The registrant 100 DERECE BILISIM A.S. and contact Volkan BIYIKLI align with the AS handle RETVO and the announced prefix.
  • The address inventory consists of a single /24 block (94.142.254.0/24) 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

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

ASNetworkPaths seen
AS49565Pole Telekomunikasyon Sanayi ve Ticaret Anonim Sirketi61

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-25, 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
AS203321
Registry name
RETVO
Registrant
100 DERECE BILISIM A.S.
Abuse contact
volkan@100derece.com
Registered
2022-08-16
Last changed
2024-03-12
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 1 valid, 0 with no ROA
ROAs
5 authorising AS203321
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
5 naming AS203321

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: 443 networks and 1,779 prefixes, as published 2026-10-24. 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