asn.dev

Autonomous system

AS209285 ESB

Unclassified RIPE

IPv4 addresses 1.02K 1 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly IE
Exchanges 0 recorded by PCH
Upstreams 3 0 downstream
Flagged prefixes 0 none

Summary

ESB

Ireland · AI-generated

utility corporate irish state-owned

The AS handle ESB is held by Electricity Supply Board.

What it's used for

  • The address space carries corporate infrastructure for the Irish state-owned electricity utility, as indicated by the netname IE-ESB-20190219 and registrant Electricity Supply Board.
  • The network announces 1024 IPv4 addresses across 1 prefix (45.67.188.0/22) with 3 observed neighbours, a ratio consistent with a small internal corporate estate rather than a transit or access provider.
  • Traffic from this AS consists of internal corporate systems, office workers, and utility operations for ESB, which manages generation, transmission, and distribution of electricity in Ireland.

Notable

  • The registrant Electricity Supply Board matches the AS holder and netname, confirming consistent ownership.
  • ESB is a vertically integrated utility established in 1927, operating across the electricity market in Ireland.
  • The inventory consists of a single /22 block, indicating a compact and focused address allocation for corporate use.

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 3 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS198949Radware Ltd232
AS6830Liberty Global Europe Holding B.V.102
AS34245Magnet Networks Limited74

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-26, 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 · 1.02K addresses IPv6 0 prefixes

CountryNamePrefixes
IEIreland1

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS209285
Registry name
ESB
Registrant
mnt-ie-esb-1
Abuse contact
abuse@esb.ie
Registered
2019-03-05
Last changed
2019-03-05
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 7 with no ROA
ROAs
0 authorising AS209285
ASPA
no ASPA record
IRR
100% registered · 7 of 7 announcements
Route objects
1 naming AS209285

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