asn.dev

Autonomous system

AS204110 SINCH

Unclassified RIPE

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

Summary

Sinch

Germany · AI-generated

cpas telecom messaging voice

The AS handle SINCH is held by Sinch Germany GmbH.

What it's used for

  • The address space carries infrastructure for a Communications Platform as a Service (CPaaS) provider, evidenced by the netname net-sinch and registrant Sinch Admin.
  • The AS announces 512 IPv4 addresses within a single prefix (193.151.46.0/23) and maintains 2 observed neighbours, indicating a focused internal estate rather than a transit or large-scale access network.
  • Traffic from this AS consists of web/API endpoints and signalling for messaging, voice, and email communications services.

Notable

  • Registrants align with the announcer, listing Sinch Admin and Sinch Germany GmbH for the announced prefix.
  • Sinch AB, formerly known as CLX Communications, operates this network as part of its global CPaaS infrastructure.
  • The inventory consists of a single contiguous IPv4 block with no announced IPv6 prefixes.

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
AS5539SpaceNet GmbH62
AS24961WIIT AG59

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-30, 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 · 512 addresses IPv6 0 prefixes

CountryNamePrefixes
DEGermany1

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS204110
Registry name
Sinch
Registrant
GLOBALS-MNT
Abuse contact
admin.munich@sinch.com
Registered
2015-08-24
Last changed
2024-04-04
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 2 with no ROA
ROAs
0 authorising AS204110
ASPA
no ASPA record
IRR
100% registered · 2 of 2 announcements
Route objects
2 naming AS204110

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: 447 networks and 1,849 prefixes, as published 2026-10-30. 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