143.58.8.0/24

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

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

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

IP Address	ASN	Details
143.58.8.1	AS29120 Mayer Brown International LLP	`1.40ms` 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
77.175.236.200	AS1136 KPN B.V.	`1.08ms` from Amsterdam, NL
94.225.238.216	AS6848 Telenet BV	`9.35ms` from Brussels, BE
24.211.249.24	AS11426 Charter Communications Inc	`9.59ms` from Charlotte, US
3.144.141.120	AS16509 Amazon.com, Inc.	`7.83ms` from Chicago, US
52.18.78.200	AS16509 Amazon.com, Inc.	`0.19ms` from Dublin, IE
104.122.35.232	AS16625 Akamai Technologies, Inc.	`0.30ms` from Duesseldorf, DE
84.183.178.248	AS3320 Deutsche Telekom AG	`4.28ms` from Duesseldorf, DE
129.128.178.8	AS3359 University of Alberta	`1.18ms` from Edmonton, CA
116.111.13.168	AS7552 Viettel Group	`1.06ms` from Ho Chi Minh City, VN
193.251.128.56	AS5511 Orange S.A.	`0.33ms` from Johannesburg, ZA
94.60.17.232	AS12353 Vodafone Portugal	`6.19ms` from Lisbon, PT
74.123.156.200	AS18911 Market Factory, Inc.	`0.31ms` from London, GB
86.171.69.152	AS2856 British Telecommunications PLC	`2.13ms` from London, GB
114.160.221.88	AS4713 NTT Communications Corporation	`11.90ms` from Osaka, JP
190.121.94.88	AS14117 Telefonica del Sur S.A.	`14.41ms` from Santiago, CL
155.230.90.248	AS10052 Kyungpook National University	`5.07ms` from Seoul, KR
175.198.180.40	AS4766 Korea Telecom	`1.15ms` from Seoul, KR
20.92.200.216	AS8075 Microsoft Corporation	`0.71ms` from Sydney, AU
60.147.110.136	AS17676 SoftBank Corp.	`3.12ms` from Tokyo, JP
52.140.213.248	AS8075 Microsoft Corporation	`0.15ms` from Tokyo, JP
102.159.229.168	AS37705 TOPNET	`2.10ms` from Tunis, TN
87.212.248.136	AS50266 Odido Netherlands B.V.	`6.39ms` from Amsterdam, NL
119.110.224.40	AS132280 Symphony Communication (Thailand) PCL.	`0.66ms` from Bangkok, TH
162.191.33.232	AS21928 T-Mobile USA, Inc.	`19.38ms` from Chicago, US
97.187.38.136	AS6167 Verizon Business	`14.86ms` from Chicago, US

Traceroute

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

traceroute -a -n -q1 143.58.8.130

traceroute to 143.58.8.130 (143.58.8.130): 64 hops max, 52 byte packets

1 [AS15169] 142.251.54.146 104.007 ms

2 *

3 *

4 [AS3356] 212.133.113.130 231.686 ms

5 [AS29120] 143.58.8.130 232.049 ms

Measurement taken from

IPinfo ProbeNet in Osaka, JP

On September 4th 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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