asn.dev

Autonomous system

AS43674 ALTERTEL-PL-2

Unclassified RIPE

IPv4 addresses 512 2 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly PL
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

AlterTEL

Poland · AI-generated

telecom business poland

ALTERTEL-PL-2 is operated by AlterTEL Sp. z o.o.

What it's used for

  • The address space is registered under the netname ORG-ASzo14-RIPE with registrants identified as AlterTEL NOC and AlterTEL Sp. z o.o.
  • The AS announces 512 IPv4 addresses across 2 prefixes and maintains 1 observed neighbour, a ratio consistent with a small-scale access or business network rather than a transit provider.
  • As a wired telecommunications carrier based in Warsaw, the traffic carried by this AS consists of business and enterprise connectivity services.

Notable

  • The RDAP registrants for both announced prefixes (91.198.100.0/24 and 193.43.90.0/24) align directly with the AS holder, AlterTEL Sp. z o.o.
  • The address inventory is compact, comprising two /24 blocks that total 512 addresses, with no IPv6 prefixes currently announced.

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
AS44655MetroLine Sp. z o.o.116

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-20, 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 2 prefixes · 512 addresses IPv6 0 prefixes

CountryNamePrefixes
PLPoland2

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS43674
Registry name
ALTERTEL-PL-2
Registrant
ALTERTEL-MNT
Abuse contact
abuse-ripe@dcenter.pl
Registered
2007-09-11
Last changed
2022-11-30
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 2 valid, 0 with no ROA
ROAs
2 authorising AS43674
ASPA
no ASPA record
IRR
100% registered · 2 of 2 announcements
Route objects
2 naming AS43674

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 1,778 prefixes, as published 2026-10-20. 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