AS11687
City of Hope Medical Center
AS11687 is City of Hope Medical Center (coh.org). It announces 16,640 IPv4 addresses in 4 prefixes, and 0 IPv6 prefixes.
United States· ARIN· allocated 1998-11-16· government
16,640
IPv4 addresses announced
4
IPv4 prefixes
0
IPv6 prefixes
0.00%
of its routes RPKI-valid
16,640
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 States16,640 · 100.00%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- CITY-OF-HOPE
- name
- City of Hope Medical Center
- org
- CHMC-3
- org name
- City of Hope Medical Center
- org address
- 1500 E. Duarte Road, Duarte, CA, 91010
- org city
- Duarte
- org country
- US
- country
- US
- source
- arin
- created
- 1998-11-16
- updated
- 2012-03-02
- abuse name
- Information Technology Services POC
- abuse email
- ARIN-POC@coh.org
- abuse phone
- +1-626-256-4673
- abuse kind
- role
- abuse city
- Duarte
- abuse country
- US
- admin name
- Information Technology Services POC
- admin email
- ARIN-POC@coh.org
- admin phone
- +1-626-256-4673
- admin kind
- role
- admin city
- Duarte
- admin country
- US
- tech
- ITSP-ARIN
- tech name
- Information Technology Services POC
- tech email
- ARIN-POC@coh.org
- tech phone
- +1-626-256-4673
- tech kind
- role
- tech city
- Duarte
- 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
- thordata0.01%
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- 0.03%
- None here
- 0.01%
IPv4 prefixes
Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 151.152.92.0/24 | United States | not found | 17 | 2026-10-02 |
| 151.152.96.0/19 | United States | not found | 18 | 2026-10-02 |
| 151.152.99.0/24 | United States | not found | 18 | 2026-10-02 |
| 151.152.128.0/19 | United States | not found | 18 | 2026-10-02 |
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