23.51.20.0/23

AS20940 · Akamai International B.V.

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Summary

Country	United States
Domain	akamai.com
ASN	AS20940
Registry	ARIN
ID	AKAMAI

WHOIS Details

NetHandle:      NET-23-32-0-0-1
OrgID:          AKAMAI
Parent:         NET-23-0-0-0-0
NetName:        AKAMAI
NetRange:       23.32.0.0 - 23.67.255.255
NetType:        allocation
RegDate:        2011-05-16
Updated:        2012-03-02
Source:         ARIN


OrgID:          AKAMAI
OrgName:        Akamai Technologies, Inc.
CanAllocate:    
Street:         145 Broadway
City:           Cambridge
State/Prov:     MA
Country:        US
PostalCode:     02142
RegDate:        1999-01-21
Updated:        2023-10-24
OrgAdminHandle: IPADM11-ARIN
OrgTechHandle:  IPADM11-ARIN
OrgTechHandle:  SJS98-ARIN
OrgAbuseHandle: NUS-ARIN
Source:         ARIN


POCHandle:      NUS-ARIN
IsRole:         Y
LastName:       NOC United States
FirstName:      
Street:         8 Cambridge Center
Street:         Mailstop 926-G
City:           Cambridge
State/Prov:     MA
Country:        US
PostalCode:     02142
RegDate:        2002-11-18
Updated:        2017-03-07
OfficePhone:    +1-617-444-2535
Mailbox:        abuse@akamai.com
Source:         ARIN


POCHandle:      IPADM11-ARIN
IsRole:         Y
LastName:       ipadmin
FirstName:      
Street:         8 Cambridge Center
Street:         Mailstop 926-G
Street:         Network Architecture
City:           Cambridge
State/Prov:     MA
Country:        US
PostalCode:     02139
RegDate:        2002-08-30
Updated:        2025-02-10
OfficePhone:    +1-617-444-0017
Mailbox:        ip-admin@akamai.com
Source:         ARIN


POCHandle:      SJS98-ARIN
IsRole:         N
LastName:       Schecter
FirstName:      Steven
Street:         145 Broadway
City:           Cambridge
State/Prov:     MA
Country:        US
PostalCode:     02142
RegDate:        2014-01-15
Updated:        2025-05-28
OfficePhone:    +1-617-274-7134
Mailbox:        ip-admin@akamai.com
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 23.51.0.0/16

Range	ASN	Company	Num of IPs
23.51.112.0/20	AS16625	Akamai International, BV	4,096
23.51.224.0/20	AS16625	Akamai International, BV	4,096
23.51.96.0/20	AS16625	Akamai International, BV	4,096
23.51.216.0/21	AS16625	Akamai International, BV	2,048

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

Read more

Pingable IPs

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

IP Address	ASN	Details
23.51.20.94	AS20940 Akamai International B.V.	`0.65ms` from San Jose, US
23.51.21.166	AS20940 Akamai International B.V.	`0.64ms` from San Jose, 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
154.248.36.39	AS36947 Telecom Algeria	`15.10ms` from Algiers, DZ
39.102.67.199	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`2.14ms` from Beijing, CN
91.54.186.231	AS3320 Deutsche Telekom AG	`3.82ms` from Hamburg, DE
47.157.215.103	AS5650 Frontier Communications of America, Inc.	`1.99ms` from Los Angeles, US
90.9.94.119	AS3215 Orange S.A.	`2.71ms` from Marseille, FR
69.179.96.23	AS22561 CenturyLink Communications, LLC	`6.41ms` from Minneapolis, US
35.200.248.199	AS396982 Google LLC	`0.09ms` from Mumbai, IN
179.107.193.23	AS28294 GIGA MAIS FIBRA TELECOMUNICACOES S.A.	`6.28ms` from Osasco, BR
121.170.231.55	AS4766 Korea Telecom	`1.35ms` from Seoul, KR
3.105.80.39	AS16509 Amazon.com, Inc.	`0.11ms` from Sydney, AU
223.200.105.199	AS4782 Data Communication Business Group	`7.27ms` from Taipei, TW
126.12.69.135	AS17676 SoftBank Corp.	`3.19ms` from Tokyo, JP
38.107.105.7	AS174 Cogent Communications, LLC	`1.08ms` from Los Angeles, US
73.105.99.55	AS7922 Comcast Cable Communications, LLC	`7.69ms` from Miami, US
109.248.15.135	AS35048 Biterika Group LLC	`0.38ms` from Moscow, RU
171.34.44.23	AS4837 CHINA UNICOM China169 Backbone	`1.74ms` from Nanchang, CN
74.72.198.183	AS12271 Charter Communications Inc	`3.75ms` from New York City, US
187.67.207.151	AS28573 Claro NXT Telecomunicacoes Ltda	`8.43ms` from Rio de Janeiro, BR
91.122.122.167	AS12389 PJSC Rostelecom	`1.25ms` from Saint Petersburg, RU
49.22.70.151	AS4766 Korea Telecom	`1.65ms` from Seoul, KR
175.230.224.23	AS4766 Korea Telecom	`4.17ms` from Seoul, KR
220.82.242.23	AS4766 Korea Telecom	`3.40ms` from Seoul, KR
190.221.74.7	AS19037 AMX Argentina S.A.	`5.70ms` from Buenos Aires, AR
106.87.66.23	AS4134 CHINANET-BACKBONE	`13.50ms` from Chongqing, CN
79.228.160.215	AS3320 Deutsche Telekom AG	`7.11ms` from Frankfurt am Main, DE

Traceroute

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

traceroute -a -n -q1 -f5 23.51.21.187

traceroute to 23.51.21.187 (23.51.21.187): 64 hops max, 52 byte packets

5 [AS3356] 4.53.31.70 6.375 ms

6 *

7 *

8 *

9 [AS20940] 23.51.21.187 1.006 ms

Measurement taken from

IPinfo ProbeNet in Fremont, US

On October 25th 2025

What are IP address ranges?

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