Autonomous system
AS204144 COMFORT-AS
Unclassified RIPE
Summary
Comfort XXI Century
isp residential russia telecom
COMFORT-AS is operated by Comfort XXI Century Ltd.
What it's used for
- The address space carries residential and business internet access, evidenced by netnames such as
RU-COMFORT-20090518andRU-COMFORT-20150813, and reverse DNS entries likeip0-74.113.185.azovnet.com. - The AS announces 18 IPv4 prefixes covering 18,176 addresses with 32 observed neighbours, a ratio consistent with an access network serving local subscribers rather than a transit provider.
- Traffic from this AS consists of subscriber eyeballs and local business endpoints within the Russian Federation, specifically in regions associated with the registrants such as Azov and Crimea.
Notable
- Registrants are mixed: most prefixes are registered to Comfort XXI Century Ltd., while
45.80.240.0/22,45.85.212.0/22, and45.88.252.0/22are registered to Joint stock company "For", and91.197.132.0/22is registered to Crimean telecommunications Ltd. - The inventory is fragmented across 18 distinct prefixes, including a large /20 block and numerous /22 and /24 blocks, indicating a network built through incremental acquisition or regional consolidation.
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
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Transit providers
11 upstream, 0 downstream and 11 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-31, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 18 prefixes · 18.18K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| RU | Russian Federation | 18 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS204144- Registry name
- COMFORT-AS
- Registrant
- Comfort XXI Century Ltd.
- Abuse contact
- abuse@komfort21vek.ru
- Registered
- 2015-08-13
- Last changed
- 2023-12-13
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- Comfort XXI Century
- Scope
- Not Disclosed
- Traffic ratio
- Not Disclosed
- Peering policy
- Open
- IRR as-set
RIPE::AS-CXXI
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
- RPKI
- 90% valid · 18 valid, 1 with no ROA 1 RPKI-invalid
- ROAs
- 18 authorising AS204144
- ASPA
- no ASPA record
- IRR
- 95% registered · 19 of 20 announcements
- Route objects
- 21 naming AS204144
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 1,845 prefixes, as published 2026-10-31. 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