asn.dev

Autonomous system

AS199803 COMSOURCE

Hosting RIPE Network Services

IPv4 addresses 1.54K 2 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly CZ
Exchanges 1 recorded by PCH
Upstreams 6 9 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
NIX.CZ - Neutral Internet eXchange for the Czech RepublicPrague, Czech Republic91.210.16.48

Transit providers

6 upstream, 9 downstream and 24 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS1299Arelion Sweden AB52
AS3356Level 3 Parent, LLC48
AS6939Hurricane Electric LLC45
AS24482SG.GS3
AS29504Freenet Liberec, z.s.3
AS1764Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH2

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 2 prefixes · 1.54K addresses IPv6 1 prefixes

CountryNamePrefixes
CZCzechia3

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS199803
Registry name
ComSource
Registrant
mnt-comsource
Abuse contact
hostmaster@comsource.cz
Registered
2014-01-21
Last changed
2022-07-27
Allocation
allocated

Declared

PeeringDB profile

self-reported
Name
ComSource
Network type
Network Services
Scope
Regional
Traffic ratio
Balanced
Peering policy
Open
IRR as-set
AS-COMSOURCE
Present at
3 exchanges
Facilities
2 facilities
Website
https://comsource.cz

PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 3 valid, 0 with no ROA
ROAs
4 authorising AS199803
ASPA
no ASPA record
IRR
100% registered · 3 of 3 announcements
Route objects
11 naming AS199803

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