Autonomous System details

AS400243

Anthropic, PBC · anthropic.com

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AS400243 – Anthropic, PBC

Field	Value
Country	United States
Website	anthropic.com
Hosted domains	0
IPv4 addresses	0
IPv6 addresses	0
ASN type	Inactive
Registry	arin
Allocated	4 months ago on Jan 14, 2026
Updated	4 months ago on Jan 14, 2026

IP Ranges

There are no known IP addresses belonging to this network

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WHOIS Details

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                                                ASHandle:       AS400243
                                                OrgID:          AS400243
                                                ASName:         AS400243
                                                ASNumber:       AS400243
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

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Hosted Domains

There are no domains currently hosted on this ASN.

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Peers

There are no peers for this ASN.

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Upstreams

There are no upstreams for this ASN.

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Downstreams

There are no downstreams for this ASN.

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Pingable IPs

No IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address	ASN	Details
23.235.247.83	AS19437 SECURED SERVERS LLC	`0.22ms` from Ashburn, US
52.33.48.35	AS16509 Amazon.com, Inc.	`0.23ms` from Boardman, US
119.51.114.19	AS4837 CHINA UNICOM China169 Backbone	`2.80ms` from Changchun, CN
108.215.80.195	AS7018 AT&T Enterprises, LLC	`19.48ms` from Dallas, US
107.154.99.243	AS19551 Incapsula Inc	`1.53ms` from Delhi, IN
110.226.216.51	AS24560 Bharti Airtel Ltd., Telemedia Services	`9.75ms` from Delhi, IN
73.34.20.131	AS7922 Comcast Cable Communications, LLC	`2.39ms` from Denver, US
86.172.224.131	AS2856 British Telecommunications PLC	`7.13ms` from London, GB
90.241.64.243	AS5378 Vodafone Limited	`5.30ms` from London, GB
77.178.231.67	AS6805 Telefonica Germany GmbH & Co.OHG	`5.72ms` from Munich, DE
207.111.242.83	AS3925 ICOnetworks	`2.51ms` from San Jose, US
187.225.137.179	AS8151 UNINET	`4.28ms` from Santiago de Queretaro, MX
152.244.88.99	AS26599 TELEFÔNICA BRASIL S.A	`2.84ms` from Sao Paulo, BR
13.209.114.227	AS16509 Amazon.com, Inc.	`0.51ms` from Seoul, KR
31.62.12.243	AS5617 Orange Polska Spolka Akcyjna	`16.79ms` from Warsaw, PL
156.212.42.163	AS8452 TE-AS	`7.93ms` from Cairo, EG
198.37.25.243	AS29825 Illinois Institute of Technology	`0.60ms` from Chicago, US
92.115.116.35	AS8926 Moldtelecom SA	`3.31ms` from Chisinau, MD
97.180.249.67	AS6167 Verizon Business	`10.77ms` from Denver, US
3.66.129.195	AS16509 Amazon.com, Inc.	`0.16ms` from Frankfurt am Main, DE
109.194.77.3	AS49048 JSC ER-Telecom Holding	`3.68ms` from Moscow, RU
194.50.131.3	AS59793 Corporate Internet Service Provider LLC	`1.32ms` from Moscow, RU
209.200.58.51	AS27257 Webair Internet Development Company Inc.	`0.99ms` from New York City, US
95.252.115.211	AS3269 Telecom Italia S.p.A.	`7.55ms` from Rome, IT
87.71.192.243	AS12400 Partner Communications Ltd.	`0.88ms` from Rosh Ha‘Ayin, IL

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What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS400243 at robtex.

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