2620:11a:b000::/48 San Francisco Metropolitan Internet Exchange (SFMIX)
Announced by AS12276 San Francisco Metropolitan Internet Exchange (SFMIX). RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 2620:11a:b000::/48
Prefix
Origin
AS12276 SFMIX-MGMT
RPKI
RPKI valid
Size
65,536 /64s
Less specific
More specifics
0
IRR route objects
1 exact, 2 covering
In RouteViews
2026-10-16 12:07 UTC
Paths
How 2620:11a:b000::/48 is reached
Every path our looking glass collectors hold for this exact prefix. Open one for its attributes, or see them all side by side in the looking glass.
AS36601 TNT (TNT - Tampa, FL)Collector-1-TAMPA-FL36601 174 1299 12276
| Origin | AS12276 San Francisco Metropolitan Internet Exchange (SFMIX) |
| Origin code | IGP |
| Communities | 174:21000 174:22013 36601:150 36601:2001 |
| Updated | 2d 9h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 6939 12276
| Origin | AS12276 San Francisco Metropolitan Internet Exchange (SFMIX) |
| Origin code | IGP |
| Communities | 903:13760 |
| Updated | 8d 20h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 12276
| Origin | AS12276 San Francisco Metropolitan Internet Exchange (SFMIX) |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 8d 20h ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS12276 to originate 2620:11a:b000::/44 up to /48. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 2620:11a:b000::/44 | /48 | AS12276 SFMIX-MGMT | ARIN |
IRR
Route objects
Registered in the IRR for this prefix and the ones covering it. Look it up live.
| Route | Origin | Source | Description | Maintained by |
|---|---|---|---|---|
| 2620:11a:b000::/48 | AS12276 SFMIX-MGMT | ARIN | San Francisco Metropolitan Internet Exchange (SFMIX) | MNT-SFMIES |
| 2620:11a:b000::/44 covering | AS12276 SFMIX-MGMT | ALTDB | SFMIX - Management | MAINT-AS6140 |
| 2620:11a:b000::/44 covering | AS12276 SFMIX-MGMT | ARIN | SFMIX | MNT-SFMIES |
Less specific
Covering prefixes
Announced prefixes that contain this one, most specific first.