asn.dev

Autonomous system

AS56816 CDFNET

Unclassified RIPE

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

Summary

CDFnet

Serbia · AI-generated

isp serbia small

CDFNET is operated by CDFnet d.o.o.

What it's used for

  • The address space carries netnames registered to CDFnet for both announced prefixes.
  • The AS announces 1024 IPv4 addresses across 2 prefixes with 1 observed neighbour, indicating a small access or local network role.
  • Traffic from this AS consists of subscriber or local network traffic within Serbia.

Notable

  • Registrants for both prefixes are CDFnet d.o.o.; CDFnet, matching the AS holder.
  • The address inventory consists of two contiguous /23 blocks in the 91.228.0.0/16 range.

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
AS8400TELEKOM SRBIJA a.d.183

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

Shape and geography

IPv4 2 prefixes · 1.02K addresses IPv6 0 prefixes

CountryNamePrefixes
RSSerbia2

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS56816
Registry name
CDFnet
Registrant
CDFnet-MNT
Abuse contact
milos@cdf.rs
Registered
2011-05-20
Last changed
2025-11-25
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 3 valid, 0 with no ROA
ROAs
2 authorising AS56816
ASPA
no ASPA record
IRR
100% registered · 3 of 3 announcements
Route objects
6 naming AS56816

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

Cross-check