Network adapter

IP address

216.73.216.20

ISP / ASN

Anthropic, PBC (AS16509)

Registered to

Anthropic, PBC (per RDAP, usually more specific than the ASN operator)

Network name

AWS-ANTHROPIC (assignment)

Allocated range

216.73.216.0/22

Block registered

2024-06-05

Country

US (NA)

Region

Ohio

City

Columbus (43215)

Timezone

America/New_York

Approx. coords

39.96118, -82.99879 (see on map)

Cloudflare colo

CMH (nearest CF data center serving you)

TCP round-trip

2 ms

Delivery rate

2504107 B/s (most recent edge estimate for this connection)

Transport and security

HTTP version

HTTP/2

TLS version

TLSv1.3

TLS cipher

AEAD-AES256-GCM-SHA384

Accept-Encoding

gzip, br

Stream priority

weight=16;exclusive=0;group=0;group-weight=0

TLS extensions

/ckgjqfL5Batj6c6taGhwPuexDk= (SHA-1 of the extension list)

Computer

Best guess

a bot on an unknown OS

User agent

Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

Languages

—

Do-not-track

not set

This session

Received at

2026-10-04T01:06:50.862Z (when the edge rendered these values)

Referrer

… (read by your browser from what it sent with this page)

Cookies sent

none

Cloudflare ray

a450494bd9ccb36e (the edge's id for the request that fetched these values)