143.58.0.0/24

AS19977 · Mayer Brown LLP

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Summary

Country	United States
Domain	mayerbrown.com
ASN	AS19977
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:      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


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

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

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

IP Address	ASN	Details
143.58.0.1	AS19977 Mayer Brown LLP	`0.36ms` from Chicago, 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
157.174.221.248	AS26298 Florida Blue	`7.42ms` from Atlanta, US
130.149.234.152	AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.	`0.99ms` from Berlin, DE
109.134.57.40	AS5432 Proximus NV	`2.18ms` from Brussels, BE
69.132.95.24	AS11426 Charter Communications Inc	`12.46ms` from Charlotte, US
73.246.212.104	AS7922 Comcast Cable Communications, LLC	`5.53ms` from Chicago, US
14.247.135.24	AS45899 VNPT Corp	`5.46ms` from Hanoi, VN
14.255.79.72	AS45899 VNPT Corp	`1.85ms` from Hanoi, VN
1.191.228.40	AS4837 CHINA UNICOM China169 Backbone	`10.97ms` from Harbin, CN
34.150.67.104	AS396982 Google LLC	`0.14ms` from Hong Kong, HK
108.255.85.232	AS7018 AT&T Enterprises, LLC	`3.02ms` from Houston, US
31.40.108.216	AS35352 LLC Ukrtele-Service	`0.54ms` from Kyiv, UA
178.54.193.200	AS48437 PP "Merezha"	`1.57ms` from Kyiv, UA
213.120.6.136	AS2856 British Telecommunications PLC	`0.90ms` from London, GB
90.213.17.40	AS5607 Sky UK Limited	`8.76ms` from London, GB
153.194.214.184	AS4713 NTT DOCOMO BUSINESS,Inc.	`4.21ms` from Osaka, JP
92.138.254.136	AS3215 Orange S.A.	`12.82ms` from Paris, FR
109.186.143.152	AS1680 Cellcom Fixed Line Communication L.P	`1.48ms` from Petaẖ Tiqva, IL
61.75.29.200	AS4766 Korea Telecom	`0.75ms` from Seoul, KR
142.90.0.88	AS40788 Start Communications	`7.20ms` from Toronto, CA
83.131.229.232	AS5391 Hrvatski Telekom d.d.	`6.88ms` from Zagreb, HR
213.249.68.120	AS42585 Metaregistrar B.V.	`1.11ms` from Amsterdam, NL
92.254.89.200	AS50266 Odido Netherlands B.V.	`11.90ms` from Amsterdam, NL
188.6.129.152	AS5483 Magyar Telekom Plc.	`5.36ms` from Budapest, HU
91.40.175.104	AS3320 Deutsche Telekom AG	`2.62ms` from Duesseldorf, DE
99.66.12.168	AS7018 AT&T Enterprises, LLC	`1.14ms` from Kansas City, US

Traceroute

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

traceroute -a -n -q1 -f3 143.58.0.1

traceroute to 143.58.0.1 (143.58.0.1): 64 hops max, 52 byte packets

3 [AS174] 154.24.13.222 1.002 ms

4 [AS19977] 143.58.0.1 0.378 ms

Measurement taken from

IPinfo ProbeNet in Chicago, US

On March 13th 2026

What are IP address ranges?

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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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