asn.dev

Autonomous system

AS59484 SIS-NET

Unclassified RIPE

IPv4 addresses 2.30K 5 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly BG
Exchanges 0 recorded by PCH
Upstreams 1 1 downstream
Flagged prefixes 0 none

Summary

SiS Net 05 EOOD

Bulgaria · AI-generated

business bg eood

The AS handle is SIS-NET and the holder is SiS Net 05 EOOD.

What it's used for

  • The address space carries corporate and business traffic, evidenced by netnames such as SIS05, SisNet_05_EOOD, SisNet05, and SisNET.
  • The AS announces 2304 IPv4 addresses across 5 prefixes with only 2 observed neighbours, a ratio that indicates a small-scale access or internal corporate network rather than a transit provider.
  • Traffic from this AS consists of internal corporate endpoints and business operations for the holder, a Bulgarian limited liability company.

Notable

  • Registrants for the majority of prefixes are listed as A1 Bulgaria EAD or A1 Bulgaria EAD Abuse, while the smallest prefix is registered to Sis Net 05 EOOD, suggesting a relationship or lease between the two entities.
  • The address inventory is composed of five distinct IPv4 blocks, all located in Bulgaria, with no IPv6 prefixes in the inventory.

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, 1 downstream and 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS8717A1 Bulgaria EAD540

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 5 prefixes · 2.30K addresses IPv6 0 prefixes

CountryNamePrefixes
BGBulgaria5

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS59484
Registry name
SiS-NET
Registrant
AZ39139-MNT
Abuse contact
mitko@mbal.net
Registered
2012-07-20
Last changed
2018-09-04
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 9 valid, 0 with no ROA
ROAs
9 authorising AS59484
ASPA
no ASPA record
IRR
100% registered · 9 of 9 announcements
Route objects
9 naming AS59484

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