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AS40271

SFMIX-TRANSIT

San Francisco Metropolitan Internet Exchange (SFMIX)

Registry

Authoritative registration data

AS number
40271
Name
SFMIX-TRANSIT
Organisation
San Francisco Metropolitan Internet Exchange (SFMIX)
Country
—
RIR
ARIN
Registered
Source:asn:rdap retrieved

IPv4 prefixes

2

IPv6 prefixes

1

Total announced

3

Announced prefixes

Observed in BGP by route collectors, not a registry allocation list

Prefixes announced by AS40271
149.112.188.0/23 IPv4 /23 not checked
149.112.115.0/24 IPv4 /24 not checked
2620:11a:b002::/48 IPv6 /48 not checked

No rows match “”.

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Source:ripestat:announced-prefixes observed

Internet Exchanges

Exchanges where this network has a listed peering LAN connection

Internet Exchange memberships listed for AS40271
Address families
Equinix San Jose 100,000 Mbps IPv4 · IPv6

No rows match “”.

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Source:peeringdb retrieved

Exchange membership means the network has a listed connection; it does not prove peering with other members.

Observed adjacencies

Networks seen next to AS40271 in BGP paths by route collectors.

Source:ripestat:asn-neighbours observed

Observed upstreams

1 networks seen before AS40271 in AS paths

Observed upstreams
Families
AS6939 HURRICANE 302 1,093
v4 v6

No rows match “”.

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Observed downstreams

3 networks seen after AS40271 in AS paths

Observed downstreams
Families
AS63129 AIRRABBIT-NETWORK 4 54
v4
AS6140 TWO-P 2 36
v4 v6
AS35008 KERFUFFLE 6 29
v4 v6

No rows match “”.

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Uncertain adjacencies

6 adjacencies that may be an artefact of collector peering

Uncertain adjacencies
Families
AS24482 SGGS-AS-AP 6 84
v4 v6
AS1828 UNITAS 6 29
v4 v6
AS35280 F5 2 11
v4
AS199524 GCORE 2 11
v4
AS49544 i3Dnet 1 6
v4 v6
AS36236 NETACTUATE 1 3
v4 v6

No rows match “”.

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Note:
These are observed adjacencies derived from BGP path data, not confirmed commercial relationships. A network appearing before another in an AS path does not establish that it is a paying transit customer, a settlement free peer, or anything else contractual. Adjacencies marked uncertain were seen only as direct peers of a route collector, so the collector's own peering may have created them.