AS19312
John Muir Health
AS19312 is John Muir Health (johnmuirhealth.com). It announces 768 IPv4 addresses in 3 prefixes, and 0 IPv6 prefixes.
United States· ARIN· allocated 2006-06-28· Business
768
IPv4 addresses announced
3
IPv4 prefixes
0
IPv6 prefixes
0.00%
of its routes RPKI-valid
768
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 States768 · 100.00%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- JOHN-MUIR-HEALTH
- name
- John Muir Health
- org
- JMH-5
- org name
- John Muir Health
- org address
- 1400 Treat Blvd., Walnut Creek, CA, 94596
- org city
- Walnut Creek
- org country
- US
- country
- US
- source
- arin
- created
- 2006-06-28
- updated
- 2021-01-19
- abuse name
- Jeremy Hardy
- abuse email
- jeremy.hardy@johnmuirhealth.com
- abuse phone
- +1-925-947-5349
- abuse kind
- person
- abuse city
- Walnut Creek
- abuse country
- US
- admin name
- Cindy Pocklington
- admin email
- cindy.pocklington@johnmuirhealth.com
- admin phone
- +1-925-947-4466
- admin kind
- person
- admin city
- Walnut Creek
- admin country
- US
- tech name
- Jeremy Hardy
- tech email
- jeremy.hardy@johnmuirhealth.com
- tech phone
- +1-925-947-5349
- tech kind
- person
- tech city
- Walnut Creek
- tech country
- US
- abuse unvalidated since
- 2019-11-12
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.
- 0.91%
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- Carrier IP256AT&T33.33%
- None here
- None here
- None here
- None here
- None here
- 0.39%
- 0.13%
IPv4 prefixes
Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 12.25.162.0/24 | United States | Not found | 17 | 2026-10-02 |
| 50.59.177.0/24 | United States | Not found | 17 | 2026-10-02 |
| 206.107.211.0/24 | United States | Not found | 17 | 2026-10-02 |
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