Autonomous system
AS51380 GREY-AS --Downstrem--
Unclassified RIPE
Summary
FOP Kovalchuk Igor Vasilevich
residential isp ukraine small
GREY-AS is held by FOP Kovalchuk Igor Vasilevich.
What it's used for
- The address space carries residential subscriber traffic, evidenced by reverse DNS entries such as
ip-192-128.bestline.net.uaandip-4-128.bestline.net.ua. - The AS announces 1280 IPv4 addresses across 3 prefixes and maintains 27 observed neighbours, a ratio consistent with a small access network providing last-mile connectivity.
- Traffic from this AS consists of residential internet users in Ukraine, as indicated by the
bestline.net.uadomain in the PTR records.
Notable
- All registrants for the announced prefixes are listed as
FOP Kovalchuk Igor Vasilevich, matching the AS holder. - The address inventory is small and fragmented into three distinct blocks:
91.218.192.0/23,195.20.4.0/23, and195.20.6.0/24.
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
Recorded at 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| GNM Internet Exchange Ukraine | Kiev, Ukraine | 178.18.230.29 |
Transit providers
7 upstream, 1 downstream and 8 adjacent networks observed; most-used upstreams first.
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
IPv4 3 prefixes · 1.28K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| UA | Ukraine | 3 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS51380- Registry name
- GREY-AS
- Registrant
- MNT-KOVALCHUK
- Abuse contact
- grey_@ua.fm
- Registered
- 2010-08-05
- Last changed
- 2024-12-16
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 5 valid, 0 with no ROA
- ROAs
- 8 authorising AS51380
- ASPA
- no ASPA record
- IRR
- 100% registered · 5 of 5 announcements
- Route objects
- 10 naming AS51380
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