AS31004
Schweizerische Bundesbahnen SBB
Reputation · trust score
A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.
- Baseline (neutral) 65
- Trust score 65 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
Network profile
Source: PeeringDB →Present at 1 internet exchange: SwissIX: Peering
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 91.230.140.0/23 | 512 |
0.0%
|
Schweizerische Bundesbahnen SBB | CH | — | — |
| 193.203.120.0/23 | 512 |
0.0%
|
Schweizerische Bundesbahnen SBB | CH | — | — |
| 194.116.210.0/23 | 512 |
0.0%
|
Schweizerische Bundesbahnen SBB | CH | — | — |
| 194.150.244.0/23 | 512 |
2.5%
|
Schweizerische Bundesbahnen SBB | CH | Vaud | Montreux |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS31004 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.
| Prefix | Announcement samples | Last seen |
|---|---|---|
| 91.230.140.0/23 | 5,771 | 2026-07-30 22:08:27 |
| 193.203.120.0/23 | 5,755 | 2026-07-30 22:08:27 |
| 194.150.244.0/23 | 5,741 | 2026-07-30 22:08:27 |
| 194.116.210.0/23 | 5,741 | 2026-07-30 22:08:27 |
| 91.230.140.0/24 | 224 | 2026-07-27 20:59:09 |
Frequently Asked Questions
What is AS31004?
AS31004 is an Autonomous System Number assigned to Schweizerische Bundesbahnen SBB. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).
How many IP addresses does AS31004 announce?
AS31004 announces 2.0K IPv4 addresses distributed across 4 routed CIDR prefixes. The network is registered in Switzerland.
Who operates AS31004?
AS31004 is operated by Schweizerische Bundesbahnen SBB. The organization is based in Switzerland. You can view all IP ranges and related ASNs on the organization page.
What country is AS31004 registered in?
AS31004 is registered in Switzerland. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
