Fairfax County Dept of Information Technology
AS3926 is Fairfax County Dept of Information Technology (fairfax.va.us). It announces 69,632 IPv4 addresses in 8 prefixes, and 0 IPv6 prefixes.
United States· ARIN· allocated 1994-10-12· business
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 States69,632 · 100.00%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- FFX-CNTY
- name
- Fairfax County Dept of Information Technology
- org
- FCDIT
- org name
- Fairfax County Dept of Information Technology
- org address
- 12000 Government Center Parkway, Fairfax, VA, 22035-0043
- org city
- Fairfax
- org country
- US
- country
- US
- source
- arin
- created
- 1994-10-12
- updated
- 1994-10-12
- abuse name
- Fay Nazareno
- abuse email
- fnazar@fairfax.va.us
- abuse phone
- +1-703-324-2742
- abuse kind
- person
- abuse city
- Fairfax
- abuse country
- US
- admin name
- Fay Nazareno
- admin email
- fnazar@fairfax.va.us
- admin phone
- +1-703-324-2742
- admin kind
- person
- admin city
- Fairfax
- admin country
- US
- tech
- FN4-ARIN
- tech name
- Fay Nazareno
- tech email
- fnazar@fairfax.va.us
- tech phone
- +1-703-324-2742
- tech kind
- person
- tech city
- Fairfax
- 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
- geonode, anyip, ippeak0.02%
- 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 |
|---|---|---|---|---|
| 166.94.0.0/16 | United States | not found | 17 | 2026-10-02 |
| 166.94.15.0/24 | United States | not found | 17 | 2026-10-02 |
| 166.94.16.0/24 | United States | not found | 17 | 2026-10-02 |
| 166.94.112.0/24 | United States | not found | 17 | 2026-10-02 |
| 166.94.113.0/24 | United States | not found | 17 | 2026-10-02 |
| 166.94.150.0/23 | United States | not found | 17 | 2026-10-02 |
| 166.94.176.0/20 | United States | not found | 17 | 2026-10-02 |
| 198.24.16.0/20 | United States | not found | 17 | 2026-10-02 |
Test the real build first.
An evaluation license puts a full current build in your hands — every row, every column, no sampling — so you can measure it against your own traffic before anyone talks about terms.