The Thomas Jefferson High School for Science and Tech.
AS3140 is The Thomas Jefferson High School for Science and Tech. (tjhsst.edu). It announces 4,096 IPv4 addresses in 1 prefix, and 1 IPv6 prefix.
United States· ARIN· allocated 1993-11-22· 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 States4,096 · 100.00%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- TJHSST-AS
- name
- The Thomas Jefferson High School for Science and Tech.
- org
- TJHSST-1
- org name
- The Thomas Jefferson High School for Science and Tech.
- org address
- 6560 Braddock Road, Alexandria, VA, 22312
- org city
- Alexandria
- org country
- US
- country
- US
- source
- arin
- created
- 1993-11-22
- updated
- 2018-04-05
- abuse
- PETER65-ARIN|PHILL424-ARIN
- abuse name
- Peter Morasca
- abuse email
- pmorasca@tjhsst.edu
- abuse phone
- +1-703-750-8367
- abuse kind
- person
- abuse city
- Alexandria
- abuse country
- US
- admin name
- Peter Morasca
- admin email
- pmorasca@tjhsst.edu
- admin phone
- +1-703-750-8367
- admin kind
- person
- admin city
- Alexandria
- admin country
- US
- tech
- PETER65-ARIN|PHILL424-ARIN
- tech name
- Peter Morasca
- tech email
- pmorasca@tjhsst.edu
- tech phone
- +1-703-750-8367
- tech kind
- person
- tech city
- Alexandria
- tech country
- US
- abuse unvalidated since
- 2025-07-23
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
- 0.10%
- 0.05%
- 0.07%
- 0.15%
- 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 |
|---|---|---|---|---|
| 198.38.16.0/20 | United States | Not found | 19 | 2026-10-02 |
IPv6 prefixes
Every IPv6 prefix BGP Route saw it announce.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 2001:468:cc0::/48 | United States | Not found | 19 | 2026-10-02 |
Test the real build first.
An evaluation license puts a full current build in your hands, with no sampling, so you can measure it against your own traffic before anyone talks about terms.