Anthropic, PBC
AS399358 is Anthropic, PBC (anthropic.com). It announces 512 IPv4 addresses in 1 prefixes, and 2 IPv6 prefixes.
United States· ARIN· allocated 2023-09-20· 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 States512 · 100.00%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- ANTHROPIC
- name
- Anthropic, PBC
- org
- AP-2440
- org name
- Anthropic, PBC
- org address
- 548 Market St., PMB 90375, San Francisco, CA, 94104-5401
- org city
- San Francisco
- org country
- US
- country
- US
- source
- arin
- created
- 2023-09-20
- updated
- 2024-01-08
- abuse name
- Anthropic
- abuse email
- arin@anthropic.com
- abuse phone
- +1-415-236-0599
- abuse kind
- role
- abuse city
- San Francisco
- abuse country
- US
- admin name
- Anthropic
- admin email
- arin@anthropic.com
- admin phone
- +1-415-236-0599
- admin kind
- role
- admin city
- San Francisco
- admin country
- US
- tech name
- Anthropic
- tech email
- arin@anthropic.com
- tech phone
- +1-415-236-0599
- tech kind
- role
- tech city
- San Francisco
- 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
- Hosting IP512100.00%
- None here
- None here
- Anycast IP512100.00%
- 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 |
|---|---|---|---|---|
| 160.79.104.0/23 | United States | valid | 18 | 2026-10-02 |
IPv6 prefixes
Every IPv6 prefix BGP Route saw it announce.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 2607:6bc0::/48 | United States | valid | 20 | 2026-10-02 |
| 2607:6bc0:11::/48 | United States | valid | 18 | 2026-10-02 |
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