asn.dev

Autonomous system

AS39246 LIULINNET Liulin Net Ltd.

Hosting RIPE

IPv4 addresses 12.80K 20 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly BG
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

Liulin Net

Bulgaria · AI-generated

residential isp fiber bg

LIULINNET is operated by Liulin Net Ltd. (also known as Optical Structural Network Ltd.).

What it's used for

  • The address space carries residential broadband traffic, evidenced by reverse DNS records pointing to easytvnet.bg and netnames such as LIULINNET-NET and BG-OPTICAL-20090924.
  • The AS announces 12,800 IPv4 addresses across 20 prefixes while maintaining only 1 observed neighbour, a ratio characteristic of an access network providing last-mile connectivity rather than transit.
  • Traffic consists of subscriber eyeballs for a regional fiber-optic internet service provider serving the Sofia area in Bulgaria.

Notable

  • Registrants align with the announcer, listing Optical Structural Network Ltd. and Abuse-C Role for the majority of prefixes, with one prefix registered to PON.BG Ltd. under the netname BG-PONBG-20041126.
  • The inventory is composed of multiple /22 and /23 blocks, including a large /21 block at 77.78.136.0/21, indicating a consolidated but segmented address estate.

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

1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS31287IPACCT CABLE Ltd3,000

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, 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 20 prefixes · 12.80K addresses IPv6 0 prefixes

CountryNamePrefixes
BGBulgaria20

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS39246
Registry name
LIULINNET
Registrant
IPACCT-MNT
Abuse contact
abuselyulinnet@gmail.com
Registered
2006-01-18
Last changed
2022-11-09
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
98% valid · 49 valid, 1 with no ROA
ROAs
58 authorising AS39246
ASPA
no ASPA record
IRR
100% registered · 50 of 50 announcements
Route objects
74 naming AS39246

Reputation

Classification and threat

Hosting Datacenter or cloud provider. Addresses are servers, not people.

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: 436 networks and 1,771 prefixes, as published 2026-10-13. 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