asn.dev

Autonomous system

AS51383 SGROUP

Unclassified RIPE

IPv4 addresses 256 1 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly BG
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

S Group International JSC

Bulgaria · AI-generated

business corporate bulgaria

The AS handle SGROUP is held by S Group International JSC.

What it's used for

  • The address space carries corporate traffic, evidenced by the netname SGROUP-BG and the registrant A1 Bulgaria EAD Abuse.
  • The AS announces 256 IPv4 addresses across 1 prefix with 2 observed neighbours, indicating a small-scale internal corporate estate rather than a transit or access network.
  • Traffic from this AS consists of internal corporate endpoints and backhaul for S Group International JSC's operations in Bulgaria.

Notable

  • The registrant A1 Bulgaria EAD Abuse differs from the AS holder S Group International JSC, suggesting the address space was originally allocated to A1 Bulgaria and is now used by S Group, possibly due to a business relationship or acquisition.
  • The inventory consists of a single /24 block (195.34.97.0/24), which is a standard size for a corporate site or small business allocation.

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

2 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS8717A1 Bulgaria EAD52
AS205132Vivacom Bulgaria EAD9

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-31, 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 · 256 addresses IPv6 0 prefixes

CountryNamePrefixes
BGBulgaria1

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS51383
Registry name
SGROUP
Registrant
S Group International JSC
Abuse contact
lir@a1.bg
Registered
2010-08-05
Last changed
2018-09-04
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 1 valid, 0 with no ROA
ROAs
1 authorising AS51383
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
1 naming AS51383

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: 447 networks and 1,845 prefixes, as published 2026-10-31. 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