asn.dev

Autonomous system

AS51989 GRADRI-AS

Unclassified RIPE

IPv4 addresses 2.05K 1 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly HR
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

Grad Rijeka-Gradsko Vijece

Croatia · AI-generated

government municipal business

GRADRI-AS is held by Grad Rijeka-Gradsko Vijece, the municipal government of Rijeka, Croatia.

What it's used for

  • The address space is registered under the netname HR-RI-20100920 and is associated with the city's administrative functions.
  • The AS announces 2048 IPv4 addresses within a single prefix (46.31.136.0/21) and maintains 2 observed neighbours, indicating a small-scale internal network rather than a transit or large access provider.
  • Traffic from this AS consists of municipal office workers, city services, and administrative endpoints for the City of Rijeka.

Notable

  • The RDAP registrant Grad Rijeka-Gradsko Vijece matches the AS holder, confirming direct ownership of the address space.
  • The inventory consists of a single contiguous /21 block, typical for a municipal entity managing its own IT infrastructure without subdividing into multiple public prefixes.

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
AS34594Telemach Hrvatska d.o.o.35
AS2108Croatian Academic and Research Network34

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 1 prefixes · 2.05K addresses IPv6 0 prefixes

CountryNamePrefixes
HRCroatia1

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS51989
Registry name
GRADRI-AS
Registrant
gradrijeka-mnt
Abuse contact
zid@rijeka.hr
Registered
2010-12-10
Last changed
2018-09-04
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 1 with no ROA
ROAs
0 authorising AS51989
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
11 naming AS51989

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 1,849 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