1. All IP Ranges
  2. 166.0.0.0/8
  3. 166.19.0.0/16
  4. AS33425  | 166.19.0.0/16

166.19.0.0/16

AS33425  ·  CoreWeave, Inc

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Summary

Country United States
Domain coreweave.com
ASN AS33425
Registry ARIN
ID COREW-1

WHOIS Details

NetHandle:      NET-166-19-0-0-1
OrgID:          COREW-1
Parent:         NET-166-0-0-0-0
NetName:        COREW-1
NetRange:       166.19.0.0 - 166.19.255.255
NetType:        allocation
RegDate:        2024-01-25
Updated:        2024-01-25
Source:         ARIN


OrgID:          COREW-1
OrgName:        CoreWeave, Inc
CanAllocate:    
Street:         101 Eisenhower Parkway
Street:         Suite 106
City:           Roseland
State/Prov:     NJ
Country:        US
PostalCode:     07068
Comment:        http://coreweave.com
RegDate:        2020-05-14
Updated:        2024-11-25
OrgAdminHandle: SALAN13-ARIN
OrgTechHandle:  COREW-ARIN
OrgAbuseHandle: COREW1-ARIN
OrgNOCHandle:   COREW-ARIN
OrgRoutingHandle:   COREW-ARIN
OrgDNSHandle:   COREW-ARIN
Source:         ARIN


POCHandle:      COREW1-ARIN
IsRole:         Y
LastName:       CoreWeave Abuse
FirstName:      
Street:         101 Eisenhower Parkway
Street:         Suite 106
City:           Roseland
State/Prov:     NJ
Country:        US
PostalCode:     07068
RegDate:        2023-02-21
Updated:        2024-04-19
OfficePhone:    +1-201-256-1436
Mailbox:        abuse@coreweave.com
Source:         ARIN


POCHandle:      COREW-ARIN
IsRole:         Y
LastName:       CoreWeave NOC
FirstName:      
Street:         101 Eisenhower Parkway
Street:         Suite 106
City:           Roseland
State/Prov:     NJ
Country:        US
PostalCode:     07068
RegDate:        2023-02-21
Updated:        2025-04-21
OfficePhone:    +1-201-256-1436
Mailbox:        noc@coreweave.com
Source:         ARIN


POCHandle:      SALAN13-ARIN
IsRole:         N
LastName:       Salanki
FirstName:      Peter
Street:         12 Commerce St
City:           Springfield
State/Prov:     NJ
Country:        US
PostalCode:     07081
RegDate:        2018-06-01
Updated:        2023-02-21
OfficePhone:    +1-201-256-1436
Mailbox:        peter@coreweave.com
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 166.0.0.0/8

Range ASN Company Num of IPs
166.80.0.0/16 AS16509 Amazon.com, Inc. 65,536
166.117.0.0/16 AS16509 Amazon.com, Inc. 65,536
166.100.0.0/16 AS2687 AT&T Japan K.K. 65,536
166.211.0.0/16 AS22394 Verizon Business 65,536
166.74.0.0/16 AS16509 Amazon.com, Inc. 65,536
166.69.0.0/16 AS19773 Motorola MNIC 65,536
166.93.0.0/16 AS26914 Synoptek, LLC 65,536
166.20.0.0/16 AS243 L3Harris Technologies, Inc. 65,536
166.238.0.0/16 AS26611 COMUNICACIÓN CELULAR S.A. COMCEL S.A. 65,536
166.123.0.0/16 AS13506 United States Department of the Treasury 65,536
166.70.0.0/16 AS6315 XMission, L.C. 65,536
166.84.0.0/16 AS2033 Panix 65,536
166.94.0.0/16 AS3926 Fairfax County Government 65,536
166.58.0.0/16 AS3371 Verizon Business 65,536
166.92.0.0/16 AS16509 Amazon.com, Inc. 65,536
166.104.0.0/16 AS9321 Hanyang University 65,536
166.82.0.0/16 AS7029 Windstream Communications LLC 65,536
166.56.0.0/16 AS3371 Verizon Business 65,536
166.90.0.0/16 AS3257 Level 3 Parent, LLC 65,536
166.90.0.0/16 AS3356 Level 3 Parent, LLC 65,536
166.58.0.0/16 AS3377 Verizon Business 65,536
166.122.0.0/16 AS6360 University of Hawaii 65,536
166.72.0.0/16 AS7018 AT&T Enterprises, LLC 65,536
166.91.0.0/16 AS14072 District of Columbia Public Schools 65,536
166.211.0.0/16 AS6167 Verizon Business 65,536
166.111.0.0/16 AS4538 Tsinghua University 65,536
166.99.0.0/16 AS11719 Eaton Corporation 65,536
166.89.0.0/16 AS13918 City of Tucson 65,536
166.102.0.0/16 AS7029 Windstream Communications LLC 65,536
166.56.0.0/16 AS3372 Verizon Business 65,536
166.58.0.0/16 AS3372 Verizon Business 65,536
166.91.0.0/16 AS33084 District of Columbia Public Schools 65,536
166.87.0.0/16 AS5080 Saudi Arabian Oil Company 65,536
166.48.0.0/17 AS396338 Altima Telecom 32,768
166.114.128.0/17 AS6568 EMPRESA NACIONAL DE TELECOMUNICACIONES SOCIEDAD ANONIMA 32,768
166.49.128.0/17 AS5400 communications networking services Private Unlimited Company 32,768
166.62.128.0/17 AS5769 Videotron Ltee 32,768
166.49.0.0/17 AS3561 CenturyLink Communications, LLC 32,768
166.114.64.0/18 AS6568 EMPRESA NACIONAL DE TELECOMUNICACIONES SOCIEDAD ANONIMA 16,384
166.108.128.0/18 AS35077 Netwo SAS 16,384
166.113.64.0/18 AS53449 OEC Fiber 16,384
166.114.32.0/19 AS6568 EMPRESA NACIONAL DE TELECOMUNICACIONES SOCIEDAD ANONIMA 8,192
166.113.32.0/19 AS13370 Ziply Fiber 8,192
166.63.192.0/19 AS1273 Vodafone Americas 8,192
166.63.128.0/19 AS3561 CenturyLink Communications, LLC 8,192
166.113.0.0/19 AS19870 Cherry Creek School District #5 8,192
166.108.0.0/19 AS16509 Amazon.com, Inc. 8,192
166.63.160.0/19 AS1273 Vodafone Americas 8,192
166.114.16.0/20 AS6568 EMPRESA NACIONAL DE TELECOMUNICACIONES SOCIEDAD ANONIMA 4,096

Hosted domains

There are 3 domain names hosted across 3 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
166.19.34.24 redsand.new 1
166.19.255.2 cwobject-staging.com 1
166.19.255.1 cwobject.com 1

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.
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Read more

Pingable IPs

1,025 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
166.19.251.0 AS33425 CoreWeave, Inc 0.63ms from New York City, US
166.19.11.26 AS33425 CoreWeave, Inc 3.57ms from Ashburn, US
166.19.91.65 AS33425 CoreWeave, Inc 4.39ms from Chicago, US
166.19.35.76 AS33425 CoreWeave, Inc 10.21ms from Los Angeles, US
166.19.0.110 AS33425 CoreWeave, Inc 0.22ms from Secaucus, US
166.19.3.82 AS33425 CoreWeave, Inc 0.24ms from Secaucus, US
166.19.95.64 AS33425 CoreWeave, Inc 3.31ms from Atlanta, US
166.19.42.5 AS33425 CoreWeave, Inc 1.26ms from Atlanta, US
166.19.74.1 AS33425 CoreWeave, Inc 13.56ms from New York City, US
166.19.10.64 AS33425 CoreWeave, Inc 3.39ms from Ashburn, US
166.19.255.2 AS33425 CoreWeave, Inc 0.91ms from Atlanta, US
166.19.38.52 AS33425 CoreWeave, Inc 6.00ms from Chicago, US
166.19.67.64 AS33425 CoreWeave, Inc 2.39ms from Dallas, US
166.19.30.58 AS33425 CoreWeave, Inc 5.18ms from Los Angeles, US
166.19.64.194 AS33425 CoreWeave, Inc 2.47ms from Dallas, US
166.19.51.2 AS33425 CoreWeave, Inc 0.98ms from New York City, US
166.19.4.5 AS33425 CoreWeave, Inc 4.01ms from New York City, US
166.19.31.4 AS33425 CoreWeave, Inc 5.16ms from Los Angeles, US
166.19.48.193 AS33425 CoreWeave, Inc 2.53ms from New York City, US
166.19.82.2 AS33425 CoreWeave, Inc 9.13ms from Portland, US
166.19.14.0 AS33425 CoreWeave, Inc 9.18ms from Ashburn, US
166.19.55.65 AS33425 CoreWeave, Inc 0.83ms from Atlanta, US
166.19.34.132 AS33425 CoreWeave, Inc 9.91ms from Los Angeles, US
166.19.8.78 AS33425 CoreWeave, Inc 1.58ms from New York City, US
166.19.70.0 AS33425 CoreWeave, Inc 8.47ms from Portland, US

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
71.0.120.0 AS19901 Brightspeed 8.18ms from Ashburn, US
92.238.162.144 AS5089 Virgin Media Limited 7.65ms from London, GB
86.221.191.128 AS3215 Orange S.A. 14.25ms from Marseille, FR
72.11.166.112 AS11290 Cogeco Connexion inc 7.84ms from Montreal, CA
91.15.52.48 AS3320 Deutsche Telekom AG 6.22ms from Nuernberg, DE
54.85.11.16 AS14618 Amazon.com, Inc. 0.22ms from Reston, US
24.113.173.16 AS11404 Wave Broadband 5.22ms from Seattle, US
174.1.85.176 AS6327 Shaw Communications 7.88ms from Seattle, US
218.48.55.160 AS9318 SK Broadband Co Ltd 1.63ms from Seoul, KR
138.75.125.48 AS4773 MobileOne Ltd. Mobile/Internet Service Provider Singapore 2.19ms from Singapore, SG
220.135.110.16 AS3462 Data Communication Business Group 1.34ms from Taichung, TW
153.240.40.128 AS4713 NTT DOCOMO BUSINESS,Inc. 4.01ms from Tokyo, JP
61.158.227.80 AS4837 CHINA UNICOM China169 Backbone 4.71ms from Zhengzhou, CN
16.63.112.160 AS16509 Amazon.com, Inc. 0.29ms from Zuerich, CH
161.150.42.128 AS22125 PNC Bank N.A. 2.35ms from Ashburn, US
79.235.164.48 AS3320 Deutsche Telekom AG 3.56ms from Duesseldorf, DE
34.107.20.240 AS396982 Google LLC 0.09ms from Frankfurt am Main, DE
65.67.12.32 AS7018 AT&T Enterprises, LLC 1.39ms from Houston, US
90.217.48.16 AS5607 Sky UK Limited 5.36ms from London, GB
199.21.237.144 AS33353 Sony Interactive Entertainment LLC 0.38ms from Los Angeles, US
76.65.57.208 AS577 Bell Canada 1.87ms from Montreal, CA
85.113.211.112 AS12389 PJSC Rostelecom 13.29ms from Moscow, RU
217.81.73.80 AS3320 Deutsche Telekom AG 6.21ms from Nuernberg, DE
27.199.181.224 AS4837 CHINA UNICOM China169 Backbone 7.30ms from Qingdao, CN
54.196.188.208 AS14618 Amazon.com, Inc. 0.25ms from Reston, US

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

$
traceroute -a -n -q1 -f4 -m11 166.19.143.157
traceroute to 166.19.143.157 (166.19.143.157): 11 hops max, 52 byte packets
5 [AS33425] 166.19.1.81 3.888 ms
6 [AS33425] 166.19.1.111 72.917 ms
7 [AS33425] 166.19.3.190 94.592 ms
8 [AS33425] 166.19.3.77 106.135 ms
9 *
10 *
11 *
Measurement taken from IPinfo ProbeNet in Coventry, GB
On

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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