asn.dev

Autonomous system

AS47964 DATA-CENTER

Unclassified RIPE

IPv4 addresses 512 2 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly BG
Exchanges 0 recorded by PCH
Upstreams 3 0 downstream
Flagged prefixes 0 none

Summary

Data Center Ltd.

Bulgaria · AI-generated

hosting datacenter bulgaria

The AS handle DATA-CENTER is held by Data Center Ltd.

What it's used for

  • The address space carries data center and cloud services, evidenced by reverse DNS entries such as 64.91.tsbg.eu and 127.91.tsbg.eu, and the registrant netnames COGENT-149-13-16 and COGENT-149-91-16.
  • The AS announces 512 IPv4 addresses across 2 prefixes with 4 observed neighbours, indicating a small-scale hosting or colocation footprint rather than a large transit or access network.
  • Traffic from this AS consists of data center workloads, including cloud servers and colocation services, consistent with the operator's business in Bulgaria.

Notable

  • The RDAP registrants for both announced prefixes are Cogent Communications, LLC, which differs from the AS holder Data Center Ltd., suggesting the address space was originally allocated to or managed by Cogent before being announced by this AS.
  • The address inventory is small and concentrated in two /24 blocks, with no IPv6 prefixes announced, reflecting a limited and specific deployment scope.

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 5 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS9002RETN Limited52
AS174Cogent Communications, LLC40
AS47872Sofia Connect EAD26

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-30, 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 2 prefixes · 512 addresses IPv6 0 prefixes

CountryNamePrefixes
BGBulgaria2

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS47964
Registry name
Data-Center
Registrant
mnt-bg-tsbghosting-1
Abuse contact
abuse@data-center.site
Registered
2023-07-31
Last changed
2026-03-11
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 2 with no ROA
ROAs
0 authorising AS47964
ASPA
no ASPA record
IRR
100% registered · 2 of 2 announcements
Route objects
4 naming AS47964

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 1,849 prefixes, as published 2026-10-30. 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