Autonomous system
AS43892 BASIS-AS
Unclassified RIPE
Summary
Sensa ehf
isp residential iceland broadband
BASIS-AS is operated by Sensa ehf, an Icelandic telecommunications provider.
What it's used for
- The address space carries residential and business broadband traffic, evidenced by reverse DNS entries pointing to
rev4.vist.is(Vísir, a major Icelandic ISP brand associated with Sensa). - With 5,120 IPv4 addresses and 20 IPv6 prefixes announced against only 4 observed neighbours, the network functions as an access provider rather than a transit hub.
- Traffic consists of subscriber eyeballs, including web browsing, streaming, and VoIP services for Icelandic households and businesses.
Notable
- All registrants for the announced prefixes are listed as
Sensa ehf, matching the AS holder nameBASIS-AS(Basis being a former brand name for the company). - The address inventory is finely subdivided into six IPv4 prefixes and ten IPv6 prefixes, indicating internal segmentation for different service tiers or geographic regions within Iceland.
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 2026-10-10, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 6 prefixes · 5.12K addresses IPv6 20 prefixes
| Country | Name | Prefixes |
|---|---|---|
| IS | Iceland | 26 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS43892- Registry name
- BASIS-AS
- Registrant
- is-sensa-1-mnt
- Abuse contact
- abuse@sensa.is
- Registered
- 2007-10-16
- Last changed
- 2025-12-12
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- Basis
- Scope
- Not Disclosed
- Traffic ratio
- Not Disclosed
- Peering policy
- Selective
- Website
- https://www.sensa.is
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
- 100% valid · 7 valid, 0 with no ROA
- ROAs
- 14 authorising AS43892
- ASPA
- no ASPA record
- IRR
- 100% registered · 7 of 7 announcements
- Route objects
- 19 naming AS43892
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: 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