asn.dev

Autonomous system

AS31004 SBB-CFF-FFS Telecom SBB

Unclassified RIPE NSP

IPv4 addresses 2.05K 4 prefixes
IPv6 prefixes 45 counted as prefixes, not addresses
Countries 1 mostly CH
Exchanges 1 recorded by PCH
Upstreams 3 0 downstream
Flagged prefixes 0 none

Summary

SBB CFF FFS

Switzerland · AI-generated

railway corporate telecom switzerland

SBB-CFF-FFS Telecom SBB is operated by Schweizerische Bundesbahnen SBB, the national railway company of Switzerland.

What it's used for

  • The address space carries internal corporate infrastructure, evidenced by netnames such as SBB-NET-4, SBB-3, and sbb-ch, and registrants including SBB Telecom Management, SBB Security Operation Center, and SBB Telecom Operation Managment Center (OMC).
  • The AS announces 2048 IPv4 addresses across 4 prefixes and 45 IPv6 prefixes, with only 3 observed neighbours, indicating a small, self-contained internal network rather than a transit or access provider.

Notable

  • Registrants consistently identify the Swiss Federal Railways and its internal telecom divisions, aligning with the announcer.
  • The address inventory is finely subdivided into four /23 IPv4 blocks and numerous IPv6 prefixes, reflecting site-by-site segmentation typical of a large corporate estate.
  • The presence of Swisscom IP-Plus Engineering in some registrant fields suggests collaboration or shared infrastructure with the national telecom provider for specific engineering or OMC functions.

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

Full topology · Graph

Internet exchanges

Recorded at 1 exchange in 1 country, largest first.

ExchangeLocationTheir address
SwissIXZurich, Switzerland91.206.52.128

Transit providers

3 upstream, 0 downstream and 4 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS8220COLT Technology Services Group Limited152
AS6730Sunrise GmbH120
AS3303Swisscom (Schweiz) AG2

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

Shape and geography

IPv4 4 prefixes · 2.05K addresses IPv6 45 prefixes

CountryNamePrefixes
CHSwitzerland49

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS31004
Registry name
SBB-CFF-FFS
Registrant
CH-SBB-MNT
Abuse contact
abuse@sbb.ch
Registered
2004-02-03
Last changed
2024-08-14
Allocation
allocated

Declared

PeeringDB profile

self-reported
Name
Schweizerische Bundesbahnen SBB
Also known as
SBB AG
Network type
NSP
Scope
Regional
Traffic ratio
Balanced
Peering policy
Restrictive
Present at
1 exchanges
Facilities
2 facilities
Website
http://www.sbb.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

Full detail
RPKI
100% valid · 6 valid, 0 with no ROA
ROAs
12 authorising AS31004
ASPA
no ASPA record
IRR
100% registered · 6 of 6 announcements
Route objects
6 naming AS31004

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 1,843 prefixes, as published 2026-11-01. 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

Cross-check