asn.dev

Autonomous system

AS25166 MAIL-

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 1 0 downstream
Flagged prefixes 0 none

Summary

Mail.bg

Bulgaria · AI-generated

business email bulgaria

MAIL- is operated by Mail.bg Ssc.

What it's used for

  • The space carries email infrastructure, evidenced by the reverse DNS record mx-br.mail.bg and the netname MAIL-BG.
  • The AS announces a single IPv4 prefix (193.201.172.0/24) comprising 256 addresses, with 0 IPv6 prefixes.
  • With only 1 observed neighbour, the low address-to-neighbour ratio indicates a small, dedicated business network rather than a transit or large access provider.

Notable

  • The RDAP registrant MAIL.BG Ssc matches the registry holder and the announced netname, confirming consistent ownership.
  • The address inventory consists of a single /24 block, representing a compact and specific allocation for the operator's services.

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
AS8866Vivacom Bulgaria EAD61

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, 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
AS25166
Registry name
Mail-BG
Registrant
BT95-ADM
Abuse contact
abuse-ip@vivacom.bg
Registered
2002-08-19
Last changed
2017-11-15
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 1 valid, 0 with no ROA
ROAs
2 authorising AS25166
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
2 naming AS25166

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: 442 networks and 1,771 prefixes, as published 2026-10-15. 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