Autonomous system
AS51395 AS-SOFTPLUS
Residential RIPE
Summary
Datasource AG
isp residential cable switzerland
AS-SOFTPLUS is operated by Datasource AG.
What it's used for
- The address space carries residential and business internet access, evidenced by netnames such as
CH-DATASOURCEandCH-SCIT-20141124, and reverse DNS entries likeegw126.tyle.ch. - The AS announces 18,432 IPv4 addresses across 25 prefixes and 8 IPv6 prefixes, while maintaining 52 observed neighbours. This ratio of moderate address space to a high number of peering partners indicates a regional access provider with significant transit and peering requirements.
- As a cable and DSL ISP in Switzerland, the traffic consists primarily of subscriber eyeballs, including web browsing, streaming, and VoIP services for residential and small business customers.
Notable
- Registrants largely align with the announcer, with most prefixes registered to
Datasource AG, though some blocks are registered toScIT Informatik GmbHandRalph Kraemer. - The address inventory is fragmented into numerous /22 and /24 blocks, reflecting organic growth and acquisition of smaller ranges over time rather than a single large allocation.
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
Recorded at 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| SwissIX | Zurich, Switzerland | 91.206.52.65 |
Transit providers
9 upstream, 5 downstream and 19 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 2026-10-14, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 25 prefixes · 18.43K addresses IPv6 8 prefixes
| Country | Name | Prefixes |
|---|---|---|
| CH | Switzerland | 33 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS51395- Registry name
- AS-SOFTPLUS
- Registrant
- MNT-DA327
- Abuse contact
- noc@datasource.ch
- Registered
- 2010-08-12
- Last changed
- 2026-07-28
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 36 valid, 0 with no ROA
- ROAs
- 42 authorising AS51395
- ASPA
- no ASPA record
- IRR
- 100% registered · 36 of 36 announcements
- Route objects
- 31 naming AS51395
Reputation
Classification and threat
Residential Fixed-line consumer ISP. Addresses here are homes.
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: 442 networks and 1,773 prefixes, as published 2026-10-13. 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