Autonomous system
AS48514 CSB
Unclassified RIPE
Summary
Chalmers Studentbostäder
education residential student sweden
CSB is operated by Stiftelsen Chalmers Studenthem, the student housing foundation for Chalmers University of Technology.
What it's used for
- The address space carries student residential traffic, evidenced by reverse DNS names such as
cust-95-80-47-254.csbnet.seandnet-95-80-16-0-20.csbnet.se. - The AS announces 17,408 IPv4 addresses across 2 prefixes and 1 IPv6 prefix, with only 2 observed neighbours, indicating a local access network rather than a transit provider.
- Traffic consists of student and guest researcher internet access within the Chalmers campus housing estate.
Notable
- Registrants for both announced prefixes are listed as "Chalmers Studentbostader's Networking Group; Stiftelsen Chalmers Studenthem", matching the AS holder.
- The inventory is split between a large /18 block (95.80.0.0/18) and a smaller /22 block (45.134.56.0/22), with the latter acquired later as indicated by the netname date 20190726.
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.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-17, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 2 prefixes · 17.41K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| SE | Sweden | 3 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS48514- Registry name
- CSB
- Registrant
- NVG-MNT
- Abuse contact
- abuse@csbnet.se
- Registered
- 2008-12-04
- Last changed
- 2024-05-23
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 6 with no ROA
- ROAs
- 0 authorising AS48514
- ASPA
- no ASPA record
- IRR
- 100% registered · 6 of 6 announcements
- Route objects
- 7 naming AS48514
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: 442 networks and 1,783 prefixes, as published 2026-10-17. 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