AS10309
County of Marin
AS10309 is County of Marin (marin.org). It announces 7,936 IPv4 addresses in 12 prefixes, and 0 IPv6 prefixes.
United States· ARIN· allocated 1997-06-23· government
7,936
IPv4 addresses announced
12
IPv4 prefixes
0
IPv6 prefixes
12.50%
of its routes RPKI-valid
7,936
of its IPv4 geolocated
1
country
Where its space is
The IPv4 it announces that IP Geolocation places, by country. A /24 counts for the AS announcing most of it.
- United States7,936 · 100.00%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- MARIN-MIDAS
- name
- County of Marin
- org
- COUNTY-59
- org name
- County of Marin
- org address
- 3501 Cicic Center Dr, San Rafael, CA, 94903
- org city
- San Rafael
- org country
- US
- country
- US
- source
- arin
- created
- 1997-06-23
- updated
- 1997-06-23
- abuse name
- County of Marin
- abuse email
- eric.newburn@marincounty.gov
- abuse phone
- +1-415-473-3627
- abuse kind
- role
- abuse city
- San Rafael
- abuse country
- US
- admin name
- County of Marin
- admin email
- eric.newburn@marincounty.gov
- admin phone
- +1-415-473-3627
- admin kind
- role
- admin city
- San Rafael
- admin country
- US
- tech
- JN1916-ARIN
- tech name
- Jan Nakashige
- tech email
- jnakashi@marin.org
- tech phone
- +1-415-499-6302
- tech kind
- person
- tech city
- Novato
- tech country
- US
What the databases see
Addresses each address-keyed database holds in the IPv4 it announces, as a share of that space, with its largest providers. Counts overlap.
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
IPv4 prefixes
Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 107.0.46.0/23 | United States | valid | 16 | 2026-10-02 |
| 199.88.64.0/21 | United States | not found | 17 | 2026-10-02 |
| 199.88.72.0/22 | United States | not found | 17 | 2026-10-02 |
| 199.88.76.0/23also AS22139 | United States | not found | 7 | 2026-10-02 |
| 199.88.79.0/24also AS22139 | United States | not found | 7 | 2026-10-02 |
| 199.88.80.0/21 | United States | not found | 17 | 2026-10-02 |
| 199.88.88.0/22 | United States | not found | 17 | 2026-10-02 |
| 199.88.113.0/24also AS31802 | United States | not found | 12 | 2026-10-02 |
| 199.88.114.0/23also AS22139 | United States | not found | 7 | 2026-10-02 |
| 199.88.116.0/23 | United States | not found | 17 | 2026-10-02 |
| 199.88.118.0/24 | United States | not found | 17 | 2026-10-02 |
| 199.88.120.0/23 | United States | not found | 17 | 2026-10-02 |
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