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AS31004Schweizerische Bundesbahnen SBB

SwitzerlandRegistryRIPE NCCTypeContent

As of 27th September 2026, AS31004 (Schweizerische Bundesbahnen SBB), a content network registered in Switzerland with RIPE NCC, originates 5 IPv4 prefixes covering 2.3k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 24,094th-largest of the 79,523 networks we see originating IPv4, and the 219th-largest of 739 in Switzerland. It is seen behind 3 upstream networks, most often AS8220 (COLT) and AS6730 (Sunrise GmbH). Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 83% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

5

IPv6 prefixes

1

IPv4 addresses

2.3k

IPv6 /64s

4.3B

Upstream graph

The networks AS31004 is seen behind, one and two hops out, drawn from real AS paths.

AS31004Toward the internet core
Upstream graph for AS31004: 9 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS31004Schweizerische Bu…This networkAS3303Swisscom (Schweiz…AS6730Sunrise GmbHAS8220COLTAS2914NTT America, Inc.AS6939Hurricane Electri…AS6830Liberty Global Eu…AS51907Kanton ZugAS3356Lumen (Level 3)AS15576NTS workspace AG

Networks observed one and two hops upstream of AS31004 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

6

adjacent networks

Upstreams
350%
Peers
350%
Downstreams
00%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS31004
NetworkCountryRelationshipPathsVantage pts
AS8220COLTGBPeer247109
AS6730Sunrise GmbHCHPeer14035
AS3303Swisscom (Schweiz) AGCHPeer11

Prefixes

The largest blocks AS31004 originates, widest first.

Largest prefixes originated by AS31004
PrefixAddressesVisibility
91.230.140.0/2351281/81
193.203.120.0/2351281/81
194.116.210.0/2351281/81
194.150.244.0/2351281/81
91.230.140.0/242561/81
2a00:4bc0::/324.3B × /6463/64

Routing health

How AS31004's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid100.0%6
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more83.3%5
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%16.7%1

Prefix sizes

IPv4 — 5 prefixes

IPv6 — 1 prefixes

  • /324.3B × /64100.0%1

Recent changes

Announcements that started or stopped since 28th Aug 2026.

No announcement by AS31004 started or stopped in this period.

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.