137.164.20.0/24

AS2152 · CENIC

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Summary

Country	United States
Domain	cenic.org
ASN	AS2152
Registry	ARIN
ID	CALREN

WHOIS Details

NetHandle:      NET-137-164-0-0-1
OrgID:          CENIC
Parent:         NET-137-0-0-0-0
NetName:        CALREN
NetRange:       137.164.0.0 - 137.164.255.255
NetType:        allocation
RegDate:        1989-12-21
Updated:        2007-05-03
Source:         ARIN


OrgID:          CENIC
OrgName:        CENIC
CanAllocate:    
Street:         5757 Plaza Drive, Suite 205
City:           Cypress
State/Prov:     CA
Country:        US
PostalCode:     90630-5029
RegDate:        1998-08-18
Updated:        2024-11-25
OrgAdminHandle: DOMAI64-ARIN
OrgTechHandle:  OPERA63-ARIN
OrgAbuseHandle: ABUSE711-ARIN
Source:         ARIN


POCHandle:      ABUSE711-ARIN
IsRole:         Y
LastName:       CENIC Abuse
FirstName:      
Street:         16700 Valley View Ave.
Street:         Suite 400
City:           La Mirada
State/Prov:     CA
Country:        US
PostalCode:     90638
RegDate:        2004-09-17
Updated:        2024-11-06
OfficePhone:    +1-714-220-3494
Mailbox:        abuse@cenic.org
Source:         ARIN


POCHandle:      OPERA63-ARIN
IsRole:         Y
LastName:       Admin Domain
FirstName:      
Street:         16700 Valley View Ave.
Street:         Suite 400
City:           La Mirada
State/Prov:     CA
Country:        US
PostalCode:     90638
RegDate:        2004-03-25
Updated:        2025-01-07
OfficePhone:    +1-714-220-3494
Mailbox:        core-ext@lists.cenic.org
Source:         ARIN


POCHandle:      DOMAI64-ARIN
IsRole:         Y
LastName:       Admin Domain
FirstName:      
Street:         16700 Valley View Ave.
Street:         Suite 400
City:           La Mirada
State/Prov:     CA
Country:        US
PostalCode:     90638
RegDate:        2004-03-25
Updated:        2024-10-25
OfficePhone:    +1-714-220-3494
Mailbox:        domainadmin@cenic.org
Source:         ARIN

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
137.164.20.179	AS2152 CENIC	`0.43ms` from Los Angeles, 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
121.75.169.40	AS9500 One New Zealand Group Limited	`6.26ms` from Auckland, NZ
24.236.242.8	AS20115 Charter Communications LLC	`11.28ms` from Chicago, US
79.248.33.200	AS3320 Deutsche Telekom AG	`2.25ms` from Frankfurt am Main, DE
116.105.208.56	AS24086 Viettel Corporation	`8.86ms` from Ho Chi Minh City, VN
172.118.145.120	AS20001 Charter Communications Inc	`4.54ms` from Los Angeles, US
182.239.176.168	AS7545 TPG Telecom Limited	`2.22ms` from Melbourne, AU
188.11.133.88	AS3269 Telecom Italia S.p.A.	`2.05ms` from Milan, IT
70.24.209.152	AS577 Bell Canada	`1.60ms` from Montreal, CA
123.252.230.120	AS134540 Tata Teleservices (Maharashtra) Ltd	`2.50ms` from Mumbai, IN
117.182.194.152	AS9808 China Mobile Communications Group Co., Ltd.	`5.01ms` from Nanning, CN
39.88.129.24	AS4837 CHINA UNICOM China169 Backbone	`3.00ms` from Qingdao, CN
40.65.90.120	AS8075 Microsoft Corporation	`0.28ms` from Quincy, US
34.236.38.72	AS14618 Amazon.com, Inc.	`0.37ms` from Reston, US
216.109.154.136	AS22205 DataPipe, Inc.	`0.39ms` from San Jose, US
58.123.8.136	AS9318 SK Broadband Co Ltd	`1.06ms` from Seoul, KR
115.159.45.56	AS45090 Shenzhen Tencent Computer Systems Company Limited	`0.75ms` from Shanghai, CN
1.15.122.152	AS45090 Shenzhen Tencent Computer Systems Company Limited	`0.75ms` from Shanghai, CN
160.29.181.200	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`9.16ms` from Tokyo, JP
46.41.166.232	AS12824 home.pl S.A.	`0.82ms` from Warsaw, PL
181.121.22.56	AS23201 Telecel S.A.	`8.62ms` from Asuncion, PY
182.92.113.88	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`2.01ms` from Beijing, CN
195.191.223.56	AS50689 WANNET Korlatolt Felelossegu Tarsasag	`3.46ms` from Budapest, HU
167.8.87.8	AS40324 TEGNA Inc.	`10.35ms` from Dallas, US
51.187.110.232	AS5607 Sky UK Limited	`0.90ms` from Dublin, IE
62.91.119.8	AS20686 Bisping & Bisping GmbH & Co KG	`1.32ms` 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 -f2 137.164.20.73

traceroute to 137.164.20.73 (137.164.20.73): 64 hops max, 52 byte packets

2 [] 84.17.33.142 283.947 ms

3 *

4 *

5 [AS11537] 163.253.1.198 1.733 ms

6 [AS2152] 137.164.20.73 0.458 ms

Measurement taken from

IPinfo ProbeNet in Los Angeles, US

On August 28th 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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