ANTHROPIC, PBC
Anthropic, PBC
Data as of 2026-07-26
GLEIF verified
LEI
984500B6DEB8CEBC4Z70
Registered name
ANTHROPIC, PBC
Jurisdiction
Ultimate parent
No parent on file in GLEIF
Cluster stats
| Netblocks | 6 · 67,840 IPv4 addresses |
| IPv6 | 2 prefixes (largest 2607:6bc0:11::/48) |
| Cluster ID | 213602168 |
| Registry | BGP |
| Owner jurisdiction | US-DE |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | GLEIF legal-entity match |
| Legal identity | LEI 984500B6DEB8CEBC4Z70 |
| Shared handles | clustered on 9 shared RIR contact/maintainer handles |
| Registry names | 2 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works · report an issue | |
Footprint over time
5 weekly snapshots · JSON
6
0 netblocks since 2026-07-05
2026-07-05
peak 6
2026-07-26
IP Ranges (6)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 160.79.104.0/23 | Anthropic, PBC | BGP | ANNOUNCED | ● high |
| 209.249.57.0/24 | Anthropic, PBC | BGP | ANNOUNCED | ● high |
| 2607:6bc0::/48 | Anthropic, PBC | BGP | ANNOUNCED | ● high |
| 2607:6bc0:11::/48 | Anthropic, PBC | BGP | ANNOUNCED | ● high |
| 153.61.0.0/16 | Anthropic, PBC | ARIN | DIRECT ALLOCATION | ● low |
| 160.79.104.0/21 | Anthropic, PBC | ARIN | DIRECT ALLOCATION | ● low |
IPv6 ranges (2)
Domains hosted in this network
what's this?Network trust
what's this?
RPKI hygiene: C
how networks compare →
66.7%
of checked blocks have valid RPKI ROA coverage
(4 of 6)
Possible discrepancies (2)
These blocks are registered to Anthropic, PBC but cryptographically authorized for a different, unrelated network (1 distinct holder) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.
| 2607:6bc0::/48 /48 | authorized for AS13335 — Cloudflare, Inc. |
| 2607:6bc0:11::/48 /48 | authorized for AS13335 — Cloudflare, Inc. |
NIC Handles
ANTHR5-ARIN
ANTHR5-ARIN
ANTHR5-ARIN
ANTHR5-ARIN
ANTHR5-ARIN
ANTHR5-ARIN
AP-2440
AS399358
AS60808