asn.dev

Autonomous system

AS47174 TUVARNA-AS Technical University of Varna

Unclassified APNIC

IPv4 addresses 256 1 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly BG
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

Technical University of Varna

Bulgaria · AI-generated

education university bulgaria

TUVARNA-AS is operated by Technical University of Varna.

What it's used for

  • The address space carries university infrastructure, identified by the netname TU-VARNA and registrant Technical University of Varna.
  • The AS announces 256 IPv4 addresses across 1 prefix with 2 observed neighbours, a ratio consistent with a small, self-contained institutional network rather than a transit or large-scale access provider.
  • Traffic from this AS consists of academic and administrative endpoints for the university's campus in Varna, including student and staff connectivity.

Notable

  • The RDAP registrant Technical University of Varna and netname TU-VARNA align directly with the AS handle TUVARNA-AS.
  • The address inventory consists of a single /24 block (195.216.228.0/24), representing a compact and uniform allocation typical of a single-site educational institution.

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

2 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS8717A1 Bulgaria EAD48
AS6802Bulgarian Research and Education Network Association (BREN)15

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-18, 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
BGBulgaria1

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
AS47174
Registry name
TUVARNA-AS
Registrant
MNT-TUVARNA
Abuse contact
abuse@tu-varna.bg
Registered
2008-05-09
Last changed
2023-07-19
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 1 valid, 0 with no ROA
ROAs
1 authorising AS47174
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
1 naming AS47174

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 1,784 prefixes, as published 2026-10-19. 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