National Energy Research Scientific Computing Center
AS2936 is National Energy Research Scientific Computing Center (nersc.gov). It announces 65,536 IPv4 addresses in 1 prefixes, and 1 IPv6 prefixes.
United States· ARIN· allocated 1994-11-23· government
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 States65,536 · 100.00%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- NERSC
- name
- National Energy Research Scientific Computing Center
- org
- NERSC-Z
- org name
- National Energy Research Scientific Computing Center
- org address
- One Cyclotron Rd, Berkeley, CA, 94720
- org city
- Berkeley
- org country
- US
- country
- US
- source
- arin
- created
- 1994-11-23
- updated
- 2024-11-13
- abuse name
- Security
- abuse email
- security@nersc.gov
- abuse phone
- +1-510-501-7918
- abuse kind
- role
- abuse city
- Berkeley
- abuse country
- US
- admin name
- Tavia Stone Gibbins
- admin email
- tcstone@lbl.gov
- admin phone
- +1-510-486-4021
- admin kind
- person
- admin city
- Berkeley
- admin country
- US
- tech
- KUMAR376-ARIN|SGT10-ARIN
- tech name
- Ronal Kumar
- tech email
- ron@lbl.gov
- tech phone
- +1-510-495-2599
- tech kind
- person
- tech city
- Berkeley
- 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
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- 0.01%
- 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 |
|---|---|---|---|---|
| 128.55.0.0/16 | United States | valid | 20 | 2026-10-02 |
IPv6 prefixes
Every IPv6 prefix BGP Route saw it announce.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 2620:0:28b0::/44 | United States | not found | 20 | 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.