206208 looking glass

AS12276 San Francisco Metropolitan Internet Exchange (SFMIX) 🇺🇸 US

Announcing 3 prefixes, seen at the RIS collectors.

IPv4 prefixes
1
256 (1 × /24)
IPv6 prefixes
2
17 × /48
Upstreams
3
transit providers observed
Peers
0
settlement-free adjacencies
Downstreams
0
transit customers observed
Customer cone
0
ASes reachable through it

Registry and operator data

AS number
AS12276
Name
San Francisco Metropolitan Internet Exchange (SFMIX)
Organisation
SFMIX
Country
🇺🇸 US
RIR
ARIN
Allocated
2007-06-04
Network type
Non-Profit
Scope
Regional
Peering policy
Open
IRR as-set
AS-SFMIX-MGMT
Website
http://sfmix.org/
Looking glass
http://lg.sfmix.org/cgi-bin/bgplg?cmd=show+ip+bgp+summary&req=
PeeringDB
net/8123
Exchanges
1
Facilities
2

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

3 valid (100.0%) 0 invalid (0.0%) 0 no ROA (0.0%)

Announced prefixes

3 in total

Prefix RPKI Peers Sample path First seen
192.33.255.0/24 v4 RPKI valid 48 693912276 2026-09-18
2620:11a:b000::/44 v6 RPKI valid 36 693912276 2026-09-18
2620:11a:b000::/48 v6 RPKI valid 36 693912276 2026-09-18