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216.73.216.9

Network Information

Network Information

The range of IP addresses allocated as a single block. NetRange shows start/end IPs (192.0.2.0 - 192.0.2.255), CIDR uses slash notation (192.0.2.0/24).

How to Interpret

/24 = 256 IPs (small organizations), /22 = 1,024 IPs (larger businesses), /16 = 65,536 IPs (large ISPs), /8 = 16.7 million IPs (extremely large).

Network Name: AMAZO-4

Network Range: 216.73.208.0 - 216.73.219.255

CIDR: 216.73.216.0/22, 216.73.208.0/21

Network Type: Direct Allocation

Organization

Organization

The legal entity that controls this IP address block. This is the actual owner or operator of the network infrastructure.

How to Interpret

ISP names (Comcast, AT&T) indicate residential/business customers. Cloud providers (Amazon, Microsoft) indicate hosting infrastructure. Direct organizations operate their own networks.

Organization: Amazon.com, Inc. (AMAZO-4)

Org ID: AMAZO-4

Address: Amazon Web Services, Inc.

City: Seattle

State/Province: WA

Country: US

Postal Code: 98108-1226

Geolocation

Geolocation

Physical location where the IP address is being used, determined by geolocation databases. This differs from WHOIS registration data, which shows ownership.

What You'll See

City, region, and country of the server/device

Coordinates with link to map

Timezone and postal code

ISP and organization operating at that location

Security flags: Proxy, VPN, Tor, Hosting/Datacenter

Diagnostic Value

Identify actual server location for latency/compliance

Detect VPNs, proxies, and hosting providers

Verify expected geographic distribution

Identify datacenter vs residential traffic

How to Interpret

WHOIS shows who OWNS the IP (organizational registration). Geolocation shows where it's USED (physical server location). A Lithuanian company can own IPs used in Phoenix datacenter.

History

IP geolocation databases emerged in the early 2000s. Accuracy improved dramatically with commercial services like MaxMind. Modern services achieve city-level accuracy for 80%+ of IPs.

Location: Columbus, Ohio, United States

Coordinates: 39.9611755, -82.9987942

Postal Code: 43216

Timezone: America/New_York

ISP: Amazon.com, Inc.

Organization: Anthropic, Pbc

Contacts

Contacts

Email address for reporting network abuse, spam, hacking attempts, or security incidents originating from this IP block.

How to Interpret

[email protected] indicates a dedicated team. Generic contacts (noc@, security@) may be monitored but less specialized.

Abuse Contact: [email protected]

Tech Contact: [email protected]

Registration

Registration

IP WHOIS provides registration information for IP address blocks, revealing who owns and operates specific IP addresses. Unlike domain WHOIS (website ownership), IP WHOIS focuses on network infrastructure.

History

The RIR system was established in the 1990s to manage growing demand. IANA allocated the final IPv4 blocks to RIRs in 2011, leading to IPv6 adoption and IPv4 address trading markets.

Registration Date: 2024-03-26

Last Updated: 2024-03-26

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#
# start
NetRange:       216.73.208.0 - 216.73.219.255
CIDR:           216.73.216.0/22, 216.73.208.0/21
NetName:        AMAZO-4
NetHandle:      NET-216-73-208-0-1
Parent:         NET216 (NET-216-0-0-0-0)
NetType:        Direct Allocation
OriginAS:       
Organization:   Amazon.com, Inc. (AMAZO-4)
RegDate:        2024-03-26
Updated:        2024-03-26
Ref:            https://rdap.arin.net/registry/ip/216.73.208.0
OrgName:        Amazon.com, Inc.
OrgId:          AMAZO-4
Address:        Amazon Web Services, Inc.
Address:        P.O. Box 81226
City:           Seattle
StateProv:      WA
PostalCode:     98108-1226
Country:        US
RegDate:        2005-09-29
Updated:        2022-09-30
Comment:        For details of this service please see
Comment:        http://ec2.amazonaws.com
Ref:            https://rdap.arin.net/registry/entity/AMAZO-4
OrgNOCHandle: AANO1-ARIN
OrgNOCName:   Amazon AWS Network Operations
OrgNOCPhone:  +1-206-555-0000 
OrgNOCEmail:  [email protected]
OrgNOCRef:    https://rdap.arin.net/registry/entity/AANO1-ARIN
OrgRoutingHandle: ARMP-ARIN
OrgRoutingName:   AWS RPKI Management POC
OrgRoutingPhone:  +1-206-555-0000 
OrgRoutingEmail:  [email protected]
OrgRoutingRef:    https://rdap.arin.net/registry/entity/ARMP-ARIN
OrgTechHandle: ANO24-ARIN
OrgTechName:   Amazon EC2 Network Operations
OrgTechPhone:  +1-206-555-0000 
OrgTechEmail:  [email protected]
OrgTechRef:    https://rdap.arin.net/registry/entity/ANO24-ARIN
OrgRoutingHandle: IPROU3-ARIN
OrgRoutingName:   IP Routing
OrgRoutingPhone:  +1-206-555-0000 
OrgRoutingEmail:  [email protected]
OrgRoutingRef:    https://rdap.arin.net/registry/entity/IPROU3-ARIN
OrgAbuseHandle: AEA8-ARIN
OrgAbuseName:   Amazon EC2 Abuse
OrgAbusePhone:  +1-206-555-0000 
OrgAbuseEmail:  [email protected]
OrgAbuseRef:    https://rdap.arin.net/registry/entity/AEA8-ARIN
# end
# start
NetRange:       216.73.216.0 - 216.73.219.255
CIDR:           216.73.216.0/22
NetName:        AWS-ANTHROPIC
NetHandle:      NET-216-73-216-0-1
Parent:         AMAZO-4 (NET-216-73-208-0-1)
NetType:        Reassigned
OriginAS:       
Organization:   Anthropic, PBC (AP-2440)
RegDate:        2024-06-05
Updated:        2024-06-05
Ref:            https://rdap.arin.net/registry/ip/216.73.216.0
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
OrgAbuseHandle: ANTHR5-ARIN
OrgAbuseName:   Anthropic
OrgAbusePhone:  +1-415-236-0599 
OrgAbuseEmail:  [email protected]
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ANTHR5-ARIN
OrgRoutingHandle: ANTHR5-ARIN
OrgRoutingName:   Anthropic
OrgRoutingPhone:  +1-415-236-0599 
OrgRoutingEmail:  [email protected]
OrgRoutingRef:    https://rdap.arin.net/registry/entity/ANTHR5-ARIN
OrgNOCHandle: ANTHR5-ARIN
OrgNOCName:   Anthropic
OrgNOCPhone:  +1-415-236-0599 
OrgNOCEmail:  [email protected]
OrgNOCRef:    https://rdap.arin.net/registry/entity/ANTHR5-ARIN
OrgTechHandle: ANTHR5-ARIN
OrgTechName:   Anthropic
OrgTechPhone:  +1-415-236-0599 
OrgTechEmail:  [email protected]
OrgTechRef:    https://rdap.arin.net/registry/entity/ANTHR5-ARIN
OrgDNSHandle: ANTHR5-ARIN
OrgDNSName:   Anthropic
OrgDNSPhone:  +1-415-236-0599 
OrgDNSEmail:  [email protected]
OrgDNSRef:    https://rdap.arin.net/registry/entity/ANTHR5-ARIN
# end
#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#

Your IP: 216.73.216.171

About DNSApe

DNSApe is a fast, no-nonsense network diagnostics toolkit built for developers, sysadmins, and security researchers.

Version History

2.0 - 2026-01-06

Complete rewrite

Rebuilt with Laravel 12, Livewire 3, and Tailwind CSS 4
Live ping monitoring with real-time Chart.js visualization
Email Security tool: SPF, DKIM, DMARC validation
REST API with JSON responses (60 req/min)
MCP server for AI assistant integration (Claude, ChatGPT, etc.)
Slack integration with /dns, /whois, /ssl slash commands
Help tooltips explaining each tool and record type
Shareable ping sessions with unique URLs
Pretty/Raw view toggle with persistent preference
Browser-based ping for client-side latency testing
Enhanced WHOIS with domain + IP info combined
Improved SSL certificate error handling

Version 2.1 with performance improvements and bug fixes coming soon.

1.1.3 - 2019-04-30

Moved to new infrastructure, resolving most DNS Traversal issues
Replaced RBL with SSL validation tool

1.1.2 - 2019-04-17

Fixed DNS Traversal issue causing many requests to fail

1.1.1 - 2019-04-16

Minor UI adjustments
Added links to lookups in DNS results
Updated dependencies
Increased session timeout to 1 week to eliminate 419 errors
Updated IP address display
Removed dnsape.com as default lookup

1.1 - 2019-02-15

Several UI adjustments
Dark mode setting is persistent between sessions via cookie
Added GDPR cookie banner for session cookies
Added tool to show client IP in lookup field (settings menu)
Keyboard shortcuts for tools, focusing, text size, copying URLs
Shareable lookup URLs - browser address changes with tool usage
Added links to Github repo and feature voting
Several error handling and bug fixes

1.0.7 - 2019-01-11

Fixed HTTP Headers issue with multiple HTTPS redirects

1.0.6 - 2019-01-09

HTTP Headers now forward to and display HTTPS headers
UI adjustments

1.0.5 - 2019-01-08

Dark Mode!

1.0.4 - 2019-01-07

TLD and subdomain validation fixes

1.0.3 - 2019-01-06

Updated DNS Cache host list
IP address validation improvements
Fixed progress bar bug with failed queries
UI adjustments

1.0.2 - 2019-01-05

IPWhois and Ping now work with IP addresses as well as hostnames
Several validation enhancements reduce errors for many lookups
Several UI adjustments

1.0.1 - 2019-01-04

Added Recent Updates panel
Fixed Whois search for many TLDs
Fixed DNS Traversal for many TLDs
Changed to fluid viewport width
Added Privacy Policy

1.0 - 2019-01-02

Initial release

Settings

Network Information

How to Interpret

Organization

How to Interpret

Geolocation

What You'll See

Diagnostic Value

How to Interpret

History

Contacts Contacts Email address for reporting network abuse, spam, hacking attempts, or security incidents originating from this IP block. How to Interpret [email protected] indicates a dedicated team. Generic contacts (noc@, security@) may be monitored but less specialized. Close

Contacts

How to Interpret

Registration

History

About DNSApe

Version History

2.0 - 2026-01-06

1.1.3 - 2019-04-30

1.1.2 - 2019-04-17

1.1.1 - 2019-04-16

1.1 - 2019-02-15

1.0.7 - 2019-01-11

1.0.6 - 2019-01-09

1.0.5 - 2019-01-08

1.0.4 - 2019-01-07

1.0.3 - 2019-01-06

1.0.2 - 2019-01-05

1.0.1 - 2019-01-04

1.0 - 2019-01-02

Contacts

Contacts

Email address for reporting network abuse, spam, hacking attempts, or security incidents originating from this IP block.

How to Interpret

[email protected] indicates a dedicated team. Generic contacts (noc@, security@) may be monitored but less specialized.