asn.dev

Autonomous system

AS56843 CNT-ISP-AS

Hosting RIPE NCC

IPv4 addresses 1.02K 1 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly RS
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

Centar Novih Tehnologija

Serbia · AI-generated

isp serbia business

CNT-ISP-AS is operated by Centar Novih Tehnologija DOO.

What it's used for

  • The address space carries the netname ORG-CNTD2-RIPE registered to Centar Novih Tehnologija DOO.
  • The AS announces 1024 IPv4 addresses and 1 IPv6 prefix, with 2 observed neighbours, indicating a small-scale access or business network.
  • Traffic from this AS consists of business and enterprise connectivity for the operator's clients in Serbia.

Notable

  • The registrant Centar Novih Tehnologija DOO matches the AS holder and the netname ORG-CNTD2-RIPE.
  • The address inventory consists of a single IPv4 block, 94.154.104.0/22, and one IPv6 prefix, 2a02:2951::/32.

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
AS57207Orion Telekom Tim d.o.o.Beograd305
AS9125Drustvo za telekomunikacije Orion telekom doo Beograd-Zemun34

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-10, 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 · 1.02K addresses IPv6 1 prefixes

CountryNamePrefixes
RSSerbia2

Registry

Allocation record

RIPE NCC · via Atlas (registry data)
Registry
RIPE NCC
Registered
2011-05-25
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 6 valid, 0 with no ROA
ROAs
6 authorising AS56843
ASPA
no ASPA record
IRR
100% registered · 6 of 6 announcements
Route objects
6 naming AS56843

Reputation

Classification and threat

Hosting Datacenter or cloud provider. Addresses are servers, not people.

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 1,775 prefixes, as published 2026-10-11. 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