Routing security
AS395011 SF-PSN - City and County of San Francisco
Unclassified ARIN
Announcements
What this network originates
Every prefix observed with AS395011 as its origin, checked against RPKI and the IRR. Problems sort first.
| Prefix | RPKI | IRR | Vantage points |
|---|---|---|---|
| 50.145.45.0/24 | RPKI valid | IRR | 50 |
| 2607:b040::/32 | RPKI valid | IRR | 28 |
RPKI · ROAs
Route origin authorisations
Signed statements by address holders that AS395011 may originate these prefixes, up to the maximum length shown.
| Prefix | Max length | Trust anchor |
|---|---|---|
| 50.145.45.0/24 | /24 | ARIN |
| 2607:b040::/32 | /48 | ARIN |
ROA-based and RPKI-valid-only prefix lists for routers are on asn.ipinfo.app.
RPKI · ASPA
Declared transit providers
This network has signed an ASPA record naming its transit providers. Each is compared against the upstreams observed in routing paths.
| AS | Network | ASPA | Routing paths |
|---|---|---|---|
| AS7922 | Comcast Cable Communications, LLC | Declared | not observed |
| AS33651 | Comcast Cable Communications, LLC | not declared | Observed |
| AS33667 | Comcast Cable Communications, LLC | not declared | Observed |
An observed upstream that is not declared is not necessarily a leak: our upstream inference cannot tell a transit provider from a peer seen in the same position. A declared provider that is never observed is usually a backup path.
IRR
Registered route objects
Route objects naming AS395011 as origin, across RADb, the RIR registries, ALTDB and NTTCOM. Objects that are registered but not announced come first: a stale object lets anyone who can spoof this origin through an IRR-built filter.
| Prefix | Source | Description | Maintainer | Changed | Routing |
|---|---|---|---|---|---|
| 50.145.45.0/24 | ARIN | Comcast Cable Communications, Inc. | MNT-CCCS | 2024-07-16 | Announced |
| 2607:b040::/32 | ARIN | 1 South Van Ness Ave, 2nd Flr, | MNT-CCSF-8 | 2026-09-25 | Announced |
IRR
AS-sets
The as-set is what upstreams expand to build this network's customer filter. Sets that list AS395011 directly show who expects to carry it.
| AS-set | Where | Relationship |
|---|---|---|
AS-COMCAST-EDIA | RADB | Lists AS395011 as a direct member |
AS32329:AS-ALL | ARIN | Lists AS395011 as a direct member |
RPKI from rpki-client, validated 2026-11-08 13:05 UTC. IRR from ARIN, RADB, RIPE, ALTDB, APNIC, LACNIC, NTTCOM, AFRINIC, collected 2026-11-08. Cross-check on bgp.he.net.