San Francisco Metropolitan Internet Exchange
San Francisco Metropolitan Internet Exchange (SFMIX)
Data as of 2026-10-18
BGP inherited
This organisation
| Netblocks | 10 · 1,536 IPv4 addresses |
| IPv6 | 5 prefixes (largest 2620:11a:b000::/44) |
| Also registered under this name | 80 netblocks across 16 separate records |
| Record ID | 250212473 |
| Registry | BGP |
| Customers | see who runs inside this network → |
Evidence & provenance ?
| Attribution | BGP parent (inherited) |
| Shared handles | clustered on 8 shared RIR contact/maintainer handles |
| Registry names | 2 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works · report an issue | |
IP Ranges (10)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 149.112.5.0/24 | San Francisco Metropolitan Internet Exchange (SFMIX) | ARIN | DIRECT ALLOCATION | ● high |
| 149.112.115.0/24 | San Francisco Metropolitan Internet Exchange (SFMIX) | ARIN | DIRECT ALLOCATION | ● high |
| 149.112.188.0/23 | San Francisco Metropolitan Internet Exchange (SFMIX) | BGP | ANNOUNCED | ● high |
| 192.33.255.0/24 | San Francisco Metropolitan Internet Exchange (SFMIX) | ARIN | DIRECT ALLOCATION | ● high |
| 206.197.187.0/24 | San Francisco Metropolitan Internet Exchange (SFMIX) | ARIN | DIRECT ALLOCATION | ● high |
| 2001:504:30::/48 | San Francisco Metropolitan Internet Exchange (SFMIX) | ARIN | DIRECT ALLOCATION | ● high |
| 2620:8b:e000::/48 | San Francisco Metropolitan Internet Exchange (SFMIX) | ARIN | DIRECT ALLOCATION | ● high |
| 2620:11a:b000::/44 | San Francisco Metropolitan Internet Exchange (SFMIX) | BGP | ANNOUNCED | ● high |
| 2620:11a:b000::/48 | San Francisco Metropolitan Internet Exchange (SFMIX) | BGP | ANNOUNCED | ● high |
| 2620:11a:b002::/48 | San Francisco Metropolitan Internet Exchange (SFMIX) | BGP | ANNOUNCED | ● high |
IPv6 ranges (5)
Footprint over time
16 weekly snapshots · JSON
14
+8 netblocks since 2026-07-05
2026-07-05
peak 14
2026-10-18
Network trust
what's this?
RPKI hygiene: B
how networks compare →
85.7%
of checked blocks have valid RPKI ROA coverage
(12 of 14)
No discrepancies found among checked blocks.
NIC Handles
AS12276
AS40271
LASSO11-ARIN
MPE54-ARIN
SFMIES
STRA-ARIN
STRA-ARIN
TP47-ARIN