83.228.128.0/18

AS33425 · CoreWeave, Inc

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Summary

Country	United Kingdom
Domain	coreweave.com
ASN	AS33425
Registry	RIPE
ID	UK-COREWEAVE1-20040428

WHOIS Details

inetnum:        83.228.128.0 - 83.228.191.255
netname:        UK-COREWEAVE1-20040428
country:        GB
org:            ORG-CUL19-RIPE
admin-c:        CN13637-RIPE
tech-c:         CN13637-RIPE
status:         ALLOCATED PA
mnt-by:         lir-uk-coreweave1-1-MNT
mnt-by:         RIPE-NCC-HM-MNT
created:        2024-11-01T11:46:47Z
last-modified:  2024-11-01T11:46:47Z
source:         RIPE
abuse-email:    abuse@coreweave.com
abuse-c:        AR75699-RIPE
abuse-org:      ORG-CUL19-RIPE

organisation:   ORG-CUL19-RIPE
org-name:       CoreWeave UK Limited
country:        GB
org-type:       LIR
address:        Phosphor (6th Floor) 133 Park Street
address:        SE1 9EA
address:        London
address:        UNITED KINGDOM
phone:          +1-201-256-1436
e-mail:         noc@coreweave.com
admin-c:        CN13637-RIPE
tech-c:         CN13637-RIPE
abuse-c:        AR75699-RIPE
mnt-ref:        lir-uk-coreweave1-1-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         lir-uk-coreweave1-1-MNT
created:        2024-05-31T07:30:35Z
last-modified:  2025-08-05T10:45:53Z
source:         RIPE
abuse-email:    abuse@coreweave.com
abuse-c:        AR75699-RIPE
abuse-org:      undefined

role:           CoreWeave NOC
address:        UNITED KINGDOM
address:        London
address:        EC2M 5TQ
address:        60 London Wall
phone:          +1-201-256-1436
e-mail:         noc@coreweave.com
nic-hdl:        CN13637-RIPE
mnt-by:         lir-uk-coreweave1-1-MNT
created:        2024-05-31T07:30:33Z
last-modified:  2024-05-31T07:30:34Z
source:         RIPE

Nearby Ranges

BGP prefixes that overlap with 83.228.0.0/16

Range	ASN	Company	Num of IPs
83.228.192.0/18	AS29222	Infomaniak Network SA	16,384
83.228.0.0/19	AS8866	BTC Broadband Service	8,192
83.228.76.0/22	AS8866	BTC Broadband Service	1,024
83.228.112.0/22	AS8866	BTC Broadband Service	1,024
83.228.72.0/23	AS8866	TELESAT-Strazhitsa	512
83.228.80.0/23	AS8866	BTC Broadband Service	512
83.228.99.0/24	AS8866	ADSL DYNAMIC POOL VELIKO TARNOVO	256
83.228.89.0/24	AS44586	Vivacom Bulgaria EAD	256
83.228.109.0/24	AS8866	BTC Mobile Service	256
83.228.60.0/24	AS8866	BTC	256
83.228.68.0/24	AS8866	BTC Broadband Service	256
83.228.98.0/24	AS8866	ADSL DYNAMIC POOL SOFIA	256
83.228.61.0/24	AS205132	Vivacom Bulgaria EAD	256

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
83.228.149.14	unicorninaberdeen.com	1
83.228.142.113	dapy1z1.ch	1

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
83.228.138.6	AS33425 CoreWeave, Inc	`4.45ms` from Valencia, ES
83.228.134.4	AS33425 CoreWeave, Inc	`4.47ms` from Valencia, ES
83.228.147.65	AS33425 CoreWeave, Inc	`16.48ms` from Valencia, ES
83.228.139.3	AS33425 CoreWeave, Inc	`0.70ms` from Barcelona, ES
83.228.143.65	AS33425 CoreWeave, Inc	`20.91ms` from London, GB
83.228.135.1	AS33425 CoreWeave, Inc	`0.76ms` from Barcelona, ES
83.228.132.243	AS33425 CoreWeave, Inc	`66.61ms` from Madrid, ES
83.228.136.225	AS33425 CoreWeave, Inc	`15.76ms` from Barcelona, ES

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
185.102.173.2	AS212477 RoyaleHosting BV	`0.65ms` from Amsterdam, NL
177.212.246.82	AS26599 TELEFÔNICA BRASIL S.A	`2.03ms` from Belo Horizonte, BR
68.146.253.210	AS6327 Shaw Communications Inc.	`5.13ms` from Calgary, CA
139.210.32.146	AS4837 CHINA UNICOM China169 Backbone	`3.14ms` from Changchun, CN
97.213.96.226	AS6167 Verizon Business	`13.15ms` from Denver, US
217.20.67.178	AS33894 MTS PJSC	`15.96ms` from Krasnoyarsk, RU
46.173.172.226	AS49183 "Galichina Telekommunication" LTD	`6.94ms` from Kyiv, UA
81.2.71.178	AS20712 Andrews & Arnold Ltd	`3.08ms` from London, GB
76.170.17.34	AS20001 Charter Communications Inc	`5.95ms` from Los Angeles, US
45.149.56.2	AS209097 NETSYST SAS	`1.64ms` from Lyon, FR
98.113.82.194	AS701 Verizon Business	`2.68ms` from New York City, US
126.169.230.242	AS17676 SoftBank Corp.	`11.05ms` from Osaka, JP
126.34.181.146	AS17676 SoftBank Corp.	`3.58ms` from Osaka, JP
115.179.90.98	AS2519 ARTERIA Networks Corporation	`4.27ms` from Osaka, JP
91.164.153.194	AS12322 Free SAS	`13.02ms` from Paris, FR
185.94.189.194	AS9009 M247 Europe SRL	`0.09ms` from Paris, FR
52.206.149.130	AS14618 Amazon.com, Inc.	`0.19ms` from Reston, US
44.214.45.194	AS14618 Amazon.com, Inc.	`0.19ms` from Reston, US
24.4.189.210	AS7922 Comcast Cable Communications, LLC	`7.31ms` from San Jose, US
121.154.227.130	AS4766 Korea Telecom	`4.32ms` from Seoul, KR
39.112.9.162	AS9318 SK Broadband Co Ltd	`5.64ms` from Seoul, KR
195.234.239.194	AS13236 DATACOM LTD	`0.97ms` from Sofia, BG
115.175.20.162	AS55990 Huawei Cloud Service data center	`2.94ms` from Suzhou, CN
194.55.154.114	AS48571 efectRO SRL	`5.23ms` from Timisoara, RO
2.177.154.194	AS58224 Iran Telecommunication Company PJS	`16.27ms` from Yerevan, AM

Traceroute

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

traceroute -a -n -q1 -f3 -m9 83.228.132.132

traceroute to 83.228.132.132 (83.228.132.132): 9 hops max, 52 byte packets

3 [AS3356] 171.75.9.77 28.445 ms

4 [AS3356] 213.242.113.86 28.832 ms

5 [AS33425] 166.19.1.17 28.946 ms

6 [AS33425] 166.19.1.64 28.995 ms

7 *

8 *

9 *

Measurement taken from

IPinfo ProbeNet in Amsterdam, NL

On October 30th 2025

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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