Autonomous system
AS43284 IWB-TELEKOM Industrielle Werke Basel
Unclassified RIPE NSP
Summary
IWB Industrielle Werke Basel
utility telecom municipal switzerland
IWB-TELEKOM is operated by IWB Industrielle Werke Basel.
What it's used for
- The address space carries municipal utility and telecom infrastructure, evidenced by netnames
CH-IWB-20011022,CH-IWB-20000301, andIWB-CORPORATEregistered to IWB-NOC. - With 12,032 IPv4 addresses across 7 prefixes and 47 observed neighbours, the network functions as a local access and corporate backbone for the city of Basel.
- Traffic consists of municipal service endpoints, office workers, and datacenter connectivity, as IWB operates the city's optical network and a major public datacenter.
Notable
- Registrants for the majority of prefixes align with the announcer, specifically IWB-NOC and IWB Industrielle Werke Basel.
- Two prefixes are registered to distinct entities:
NET-MERIANfor Merian Iselin Stiftung andBVB-BLOCK-5for Basler Verkehrs-Betriebe, indicating leased or historically related space. - The inventory includes a large /32 IPv6 block alongside smaller IPv4 allocations, reflecting a modernized municipal network estate.
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 | 91.206.52.136 |
Transit providers
8 upstream, 2 downstream and 17 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 2026-10-10, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 7 prefixes · 12.03K addresses IPv6 2 prefixes
| Country | Name | Prefixes |
|---|---|---|
| CH | Switzerland | 9 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS43284- Registry name
- IWB-TELEKOM
- Registrant
- IWB-MNT
- Abuse contact
- abuse@iwb.ch
- Registered
- 2007-07-09
- Last changed
- 2026-09-24
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- IWB
- Also known as
- IWB Telekom
- Network type
- NSP
- Scope
- Europe
- Traffic ratio
- Balanced
- Peering policy
- Open
- IRR as-set
AS-IWB- Present at
- 1 exchanges
- Facilities
- 2 facilities
- Website
- https://telekom.iwb.ch/
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
- 89% valid · 8 valid, 1 with no ROA
- ROAs
- 8 authorising AS43284
- ASPA
- no ASPA record
- IRR
- 100% registered · 9 of 9 announcements
- Route objects
- 9 naming AS43284
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