Autonomous system
AS43231 cardtek KARBIL YAZILIM VE BILISIM TEKNOLOJILERI TIC. A.S.
Unclassified RIPE
Summary
Cardtek
business software turkey
CARDTEK is operated by KARBIL YAZILIM VE BILISIM TEKNOLOJILERI TIC. A.S.
What it's used for
- The address space carries corporate infrastructure for a Turkish software and information technology company, as indicated by the registrant name and netnames
TR-KARBIL-20170131andTR-KARBIL-20051129. - The AS announces 1280 IPv4 addresses across 2 prefixes with only 1 observed neighbour, 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 web/API endpoints associated with the company's software development and IT services business.
Notable
- Both announced prefixes are registered to
KARBIL YAZILIM VE BILISIM TEKNOLOJILERI TIC. A.S., matching the AS holder. - The address inventory is small and finely subdivided into two distinct blocks, reflecting site-by-site segmentation for an internal corporate 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
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.
| AS | Network | Paths seen |
|---|---|---|
| AS34984 | Superonline Iletisim Hizmetleri A.S. | 306 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-02, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 2 prefixes · 1.28K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| TR | Turkey | 2 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS43231- Registry name
- cardtek
- Registrant
- KARBIL YAZILIM VE BILISIM TEKNOLOJILERI TIC. A.S.
- Abuse contact
- network@paycore.com
- Registered
- 2017-02-02
- Last changed
- 2019-07-20
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 5 valid, 0 with no ROA
- ROAs
- 5 authorising AS43231
- ASPA
- no ASPA record
- IRR
- 100% registered · 5 of 5 announcements
- Route objects
- 5 naming AS43231
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: 448 networks and 1,851 prefixes, as published 2026-11-03. 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