143.58.12.0/22

AS29120 · Mayer Brown International LLP

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Summary

Country	United States
Domain	mayerbrown.com
ASN	AS29120
Registry	ARIN
ID	MBRM-NET

WHOIS Details

NetHandle:      NET-143-58-0-0-1
OrgID:          MBRML
Parent:         NET-143-0-0-0-0
NetName:        MBRM-NET
NetRange:       143.58.0.0 - 143.58.63.255
NetType:        allocation
RegDate:        1990-03-26
Updated:        2022-04-06
Source:         ARIN


OrgID:          MBRML
OrgName:        Mayer Brown LLP
CanAllocate:    
Street:         71 S. Wacker
City:           Chicago
State/Prov:     IL
Country:        US
PostalCode:     60606
RegDate:        2006-01-12
Updated:        2016-07-12
OrgAdminHandle: BARRA15-ARIN
OrgTechHandle:  MCS7-ARIN
OrgAbuseHandle: MCS7-ARIN
Source:         ARIN


POCHandle:      BARRA15-ARIN
IsRole:         N
LastName:       Barratt
FirstName:      Mark
Street:         311 W. Monroe
City:           Chicago
State/Prov:     IL
Country:        US
PostalCode:     60606
RegDate:        2013-12-03
Updated:        2025-07-16
OfficePhone:    +1-312-701-8836
Mailbox:        mbarratt@mayerbrown.com
Source:         ARIN


POCHandle:      MCS7-ARIN
IsRole:         N
LastName:       Sherman
FirstName:      Michael
Street:         230 South LaSalle Street
City:           Chicago
State/Prov:     IL
Country:        US
PostalCode:     60604
RegDate:        2006-01-09
Updated:        2022-02-17
OfficePhone:    +1-312-701-8315
Mailbox:        msherman@mayerbrown.com
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 143.58.0.0/16

Range	ASN	Company	Num of IPs
143.58.64.0/18	AS8881	1&1 Versatel GmbH	16,384

Hosted domains

There are no domains currently hosted on this ASN.

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.

Useful for Cybersecurity

Read more

Pingable IPs

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

IP Address	ASN	Details
143.58.13.73	AS29120 Mayer Brown International LLP	`1.03ms` from London, GB

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
98.183.139.230	AS22773 Cox Communications Inc.	`9.07ms` from Ashburn, US
104.4.169.198	AS7018 AT&T Enterprises, LLC	`8.96ms` from Chicago, US
174.104.18.134	AS10796 Charter Communications Inc	`10.86ms` from Columbus, US
172.217.131.70	AS15169 Google LLC	`0.14ms` from Dallas, US
3.251.19.22	AS16509 Amazon.com, Inc.	`0.25ms` from Dublin, IE
202.77.125.166	AS9905 Linknet ASN	`2.07ms` from Jakarta, ID
153.212.189.6	AS4713 NTT DOCOMO BUSINESS,Inc.	`11.49ms` from Osaka, JP
153.130.165.102	AS4713 NTT DOCOMO BUSINESS,Inc.	`9.91ms` from Osaka, JP
70.91.184.70	AS7922 Comcast Cable Communications, LLC	`5.70ms` from Portland, US
43.202.107.118	AS16509 Amazon.com, Inc.	`0.63ms` from Seoul, KR
183.97.33.102	AS4766 Korea Telecom	`1.90ms` from Seoul, KR
211.76.88.230	AS9676 SaveCom Internation Inc.	`9.04ms` from Taipei, TW
153.132.161.54	AS4713 NTT DOCOMO BUSINESS,Inc.	`9.94ms` from Tokyo, JP
185.22.114.134	AS60964 AppDistrict sp. z o.o.	`3.43ms` from Wrocław, PL
219.138.241.102	AS4134 CHINANET BACKBONE	`3.76ms` from Wuhan, CN
70.137.127.6	AS7018 AT&T Enterprises, LLC	`12.14ms` from Atlanta, US
123.56.228.118	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`1.97ms` from Beijing, CN
42.81.252.70	AS58542 CHINATELECOM TIANJIN	`5.09ms` from Beijing, CN
34.170.115.166	AS396982 Google LLC	`0.12ms` from Council Bluffs, US
3.122.152.118	AS16509 Amazon.com, Inc.	`0.20ms` from Frankfurt am Main, DE
110.41.138.6	AS55990 Huawei Cloud Service data center	`1.50ms` from Guangzhou, CN
218.38.205.134	AS9318 SK Broadband Co Ltd	`7.38ms` from Incheon, KR
99.160.62.54	AS7018 AT&T Enterprises, LLC	`2.92ms` from Los Angeles, US
137.110.33.70	AS7377 University of California, San Diego	`3.66ms` from Los Angeles, US
87.90.117.86	AS5410 Bouygues Telecom SA	`8.57ms` from Lyon, FR

Traceroute

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

traceroute -a -n -q1 -f4 143.58.13.55

traceroute to 143.58.13.55 (143.58.13.55): 64 hops max, 52 byte packets

4 [AS174] 154.25.17.249 0.928 ms

5 [AS174] 154.25.3.214 1.96 ms

6 [AS174] 149.14.199.114 1.532 ms

7 [AS174] 149.5.74.66 0.749 ms

8 [AS29120] 143.58.14.4 2.1 ms

9 [AS29120] 143.58.14.3 0.989 ms

10 [AS29120] 143.58.13.55 1.721 ms

Measurement taken from

IPinfo ProbeNet in London, GB

On April 13th 2026

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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