asn.dev

Autonomous system

AS12436 BERGON-AS

Unclassified RIPE

IPv4 addresses 9.22K 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

Bergon Internet

Bulgaria · AI-generated

isp eyeball

A Bulgarian provider with a second company's network living inside its DNS.

What it's used for

  • Local internet access. 9,216 addresses in two IPv4 prefixes with three observed BGP neighbours and no IPv6 announced.

Notable

  • 109.104.192.0/19 is netname BG-BERGON-20090908, registered to Bergon Internet Ltd.
  • 45.83.216.0/22 is netname BG-OPTICNET-20190528, registered to OPTIC NET Ltd., a different company.
  • Reverse DNS puts both under the same zone but keeps them apart: 255.207.104.109.static-ip.bergon.net against 255.217.83.45.opticnet.bergon.net.
  • One of the registry contacts is named On all issues.

Interesting

  • That opticnet.bergon.net label is an acquisition caught in the act. The second company's addresses are announced by the first, and rather than renumbering anything, somebody added a subdomain and pointed the reverse zone at it. The old network keeps its identity as a string inside the new one's.
  • Both templates write the address backwards, in the order in-addr.arpa uses, which is a reliable sign the zone was generated from the reverse tree rather than typed. The two differ only in the label that follows, so one script produces both.

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
AS57344Telehouse EAD88
AS41313"NOVATEL" EOOD18
AS12615Global Communication Net Plc14

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-11, 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 · 9.22K addresses IPv6 0 prefixes

CountryNamePrefixes
BGBulgaria2

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS12436
Registry name
BERGON-AS
Registrant
BERGON-MNT
Abuse contact
drago@bergon.net
Registered
2009-09-17
Last changed
2025-12-17
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 2 with no ROA
ROAs
0 authorising AS12436
ASPA
no ASPA record
IRR
100% registered · 2 of 2 announcements
Route objects
4 naming AS12436

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: 431 networks and 1,768 prefixes, as published 2026-10-12. 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