ASNumber: 4167 ASName: AP-2440-4167 ASHandle: AS4167 RegDate: 2026-03-03 Updated: 2026-03-03 Ref: https://rdap.arin.net/registry/autnum/4167 OrgName: Anthropic, PBC OrgId: AP-2440 Address: 548 Market St. Address: PMB 90375 City: San Francisco StateProv: CA PostalCode: 94104-5401 Country: US RegDate: 2023-07-31 Updated: 2023-08-22 Ref: https://rdap.arin.net/registry/entity/AP-2440 OrgRoutingHandle: ANTHR5-ARIN OrgRoutingName: Anthropic OrgRoutingPhone: +1-415-236-0599 OrgRoutingEmail: arin@anthropic.com OrgRoutingRef: https://rdap.arin.net/registry/entity/ANTHR5-ARIN OrgAbuseHandle: ANTHR5-ARIN OrgAbuseName: Anthropic OrgAbusePhone: +1-415-236-0599 OrgAbuseEmail: arin@anthropic.com OrgAbuseRef: https://rdap.arin.net/registry/entity/ANTHR5-ARIN OrgNOCHandle: ANTHR5-ARIN OrgNOCName: Anthropic OrgNOCPhone: +1-415-236-0599 OrgNOCEmail: arin@anthropic.com OrgNOCRef: https://rdap.arin.net/registry/entity/ANTHR5-ARIN OrgTechHandle: ANTHR5-ARIN OrgTechName: Anthropic OrgTechPhone: +1-415-236-0599 OrgTechEmail: arin@anthropic.com OrgTechRef: https://rdap.arin.net/registry/entity/ANTHR5-ARIN OrgDNSHandle: ANTHR5-ARIN OrgDNSName: Anthropic OrgDNSPhone: +1-415-236-0599 OrgDNSEmail: arin@anthropic.com OrgDNSRef: https://rdap.arin.net/registry/entity/ANTHR5-ARIN