asn.dev

Autonomous system

AS201661 ASN-AJC

Residential RIPE

IPv4 addresses 2.30K 3 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly PL
Exchanges 1 recorded by PCH
Upstreams 5 2 downstream
Flagged prefixes 0 none

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

Recorded at 1 exchange in 1 country, largest first.

ExchangeLocationTheir address
TPIX - Internet ExchangeWarsaw, Poland195.149.233.198

Transit providers

5 upstream, 2 downstream and 9 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS29535Orange Polska Spolka Akcyjna348
AS62081Stowarzyszenie e-Poludnie62
AS24482SG.GS7
AS5617Orange Polska Spolka Akcyjna6
AS20473The Constant Company, LLC1

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-18, 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 3 prefixes · 2.30K addresses IPv6 1 prefixes

CountryNamePrefixes
PLPoland4

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS201661
Registry name
ASN-AJC
Registrant
AJCBB-MNT
Abuse contact
admin@ajc.com.pl
Registered
2014-08-20
Last changed
2018-09-04
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 7 valid, 0 with no ROA
ROAs
7 authorising AS201661
ASPA
no ASPA record
IRR
100% registered · 7 of 7 announcements
Route objects
8 naming AS201661

Reputation

Classification and threat

Residential Fixed-line consumer ISP. Addresses here are homes.

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 1,784 prefixes, as published 2026-10-19. 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