Autonomous system
AS48181 PROLAN-AS
Unclassified RIPE
Summary
Prolan
isp residential fiber bulgaria
The AS handle PROLAN-AS is held by Prolan Ltd.
What it's used for
- The address space carries residential fiber internet and digital television services, with registrant netnames such as
BG-FIBERBG-20120816andBG-FIBERBG-20190313assigned to "Passive Optical Networks FiberBG EOOD". - The network announces 4608 IPv4 addresses across 5 prefixes and maintains 2 observed neighbours, a ratio indicative of a local access provider rather than a transit carrier.
- Traffic from this AS consists of subscriber eyeballs in the Sofia districts of Simeonovo, Dragalevtsi, Boyana, and surrounding areas, utilizing PON technology for last-mile connectivity.
Notable
- All five announced prefixes are registered to "Passive Optical Networks FiberBG EOOD", which aligns with the AS holder Prolan Ltd., indicating a unified corporate estate.
- The inventory consists of five distinct IPv4 blocks, including a /21 and three /22s, with no IPv6 prefixes currently announced.
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
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
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
IPv4 5 prefixes · 4.61K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| BG | Bulgaria | 5 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS48181- Registry name
- PROLAN-AS
- Registrant
- bg-fiberbg-1-mnt
- Abuse contact
- abuse@prolan.bg
- Registered
- 2008-10-22
- Last changed
- 2026-01-23
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 5 valid, 0 with no ROA
- ROAs
- 5 authorising AS48181
- ASPA
- no ASPA record
- IRR
- 100% registered · 5 of 5 announcements
- Route objects
- 7 naming AS48181
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 1,784 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