Thomas Jefferson University Hospitals, Inc.
AS22644 is Thomas Jefferson University Hospitals, Inc. (jefferson.edu). It announces 61,440 IPv4 addresses in 5 prefixes, and 17 IPv6 prefixes.
United States· ARIN· allocated 2001-10-29· education
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 States61,440 · 100.00%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- TJUH
- name
- Thomas Jefferson University Hospitals, Inc.
- org
- TJUH-1
- org name
- Thomas Jefferson University Hospitals, Inc.
- org address
- 833 Chestnut Street, Suite 600, Information Systems, Philadelphia, PA, 19107
- org city
- Philadelphia
- org country
- US
- country
- US
- source
- arin
- created
- 2001-10-29
- updated
- 2022-03-29
- abuse name
- Abuse
- abuse email
- abuse@jefferson.edu
- abuse phone
- +1-215-955-7975
- abuse kind
- role
- abuse city
- Philadelphia
- abuse country
- US
- admin name
- Thomas Ruiz
- admin email
- thomas.ruiz@jefferson.edu
- admin phone
- +1-267-226-1814
- admin kind
- person
- admin city
- Philadelphia
- admin country
- US
- tech
- ERNST4-ARIN
- tech name
- Matthew Ernst
- tech email
- Matthew.Enst@jefferson.edu
- tech phone
- +1-215-503-1199
- tech kind
- person
- tech city
- Philadelphia
- 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.
- vpngate0.00%
- thordata, anyip, cliproxy0.01%
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- 0.00%
- 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 |
|---|---|---|---|---|
| 147.140.0.0/18 | United States | valid | 19 | 2026-10-02 |
| 147.140.80.0/20 | United States | valid | 19 | 2026-10-02 |
| 147.140.96.0/19 | United States | valid | 19 | 2026-10-02 |
| 147.140.128.0/17 | United States | valid | 19 | 2026-10-02 |
| 147.140.255.0/24 | United States | valid | 17 | 2026-10-02 |
IPv6 prefixes
Every IPv6 prefix BGP Route saw it announce.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 2605:2c0::/48 | United States | valid | 20 | 2026-10-02 |
| 2605:2c0:1::/48 | United States | valid | 20 | 2026-10-02 |
| 2605:2c0:1000::/48 | United States | valid | 20 | 2026-10-02 |
| 2605:2c0:1001::/48 | United States | valid | 20 | 2026-10-02 |
| 2605:2c0:3000::/40 | United States | valid | 20 | 2026-10-02 |
| 2605:2c0:4000::/36 | United States | valid | 20 | 2026-10-02 |
| 2605:2c0:5000::/48 | United States | valid | 20 | 2026-10-02 |
| 2605:2c0:5008::/48 | United States | valid | 20 | 2026-10-02 |
| 2605:2c0:5009::/48 | United States | valid | 20 | 2026-10-02 |
| 2605:2c0:6000::/48 | United States | valid | 20 | 2026-10-02 |
| 2605:2c0:6001::/48 | United States | valid | 20 | 2026-10-02 |
| 2605:2c0:6010::/48 | United States | valid | 20 | 2026-10-02 |
| 2605:2c0:6100::/48 | United States | valid | 20 | 2026-10-02 |
| 2605:2c0:6101::/48 | United States | valid | 20 | 2026-10-02 |
| 2605:2c0:6110::/48 | United States | valid | 20 | 2026-10-02 |
| 2605:2c0:6200::/40 | United States | valid | 20 | 2026-10-02 |
| 2605:2c0:6300::/40 | United States | valid | 20 | 2026-10-02 |
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