Autonomous System details

AS19977

Mayer Brown LLP  ·  mayerbrown.com

United States

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AS19977 – Mayer Brown LLP

Field Value
Country United States
Website mayerbrown.com
Hosted domains 6
IPv4 addresses 2,048
IPv6 addresses 0
ASN type Business
Registry arin
Allocated 9 years ago on Aug 02, 2016
Updated 9 years ago on Aug 02, 2016

IP Ranges

Netblock Company Num of IPs
143.58.0.0/22 Mayer Brown LLP 1,024
143.58.4.0/22 Mayer Brown LLP 1,024
143.58.0.0/24 Mayer Brown LLP 256
143.58.1.0/24 Mayer Brown LLP 256
143.58.2.0/24 Mayer Brown LLP 256
143.58.3.0/24 Mayer Brown LLP 256
143.58.4.0/24 Mayer Brown LLP 256
143.58.5.0/24 Mayer Brown LLP 256
143.58.6.0/24 Mayer Brown LLP 256
143.58.7.0/24 Mayer Brown LLP 256

There are no known IPv6 addresses belonging to this network

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WHOIS Details

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                                                ASHandle:       AS19977
                                                OrgID:          AS19977
                                                ASName:         AS19977
                                                ASNumber:       AS19977
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There are 6 domain names hosted across 6 IP addresses on this ASN.

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IP Address Domain Domains on this IP
143.58.1.249 ██████████ 1
143.58.4.81 ██████████ 1
143.58.5.109 ██████████ 1
143.58.1.248 ██████████ 1
143.58.5.247 ██████████ 1
143.58.1.250 ██████████ 1

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Peers

There are 2 peers for this ASN.

Peers Name
AS174 Cogent Communications, LLC
AS3356 Level 3 Parent, LLC
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Upstreams

There are 2 upstreams for this ASN.

upstreams Name
AS174 Cogent Communications, LLC
AS3356 Level 3 Parent, LLC
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Downstreams

There are no downstreams for this ASN.

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ASN API & Database

Pingable IPs

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

IP Address ASN Details
143.58.2.1 AS19977 Mayer Brown LLP 2.33ms from Chicago, US
143.58.5.24 AS19977 Mayer Brown LLP 1.19ms from Chicago, US
143.58.0.1 AS19977 Mayer Brown LLP 1.70ms from Chicago, US
143.58.4.1 AS19977 Mayer Brown LLP 0.86ms from Chicago, US
143.58.1.26 AS19977 Mayer Brown LLP 2.30ms 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
118.120.94.105 AS4134 CHINANET-BACKBONE 5.96ms from Chengdu, CN
188.124.183.57 AS34999 PRO INTERNET Sp. z o.o. 1.11ms from Gdansk, PL
186.68.5.73 AS14522 SERVICIOS DE TELECOMUNICACIONES SETEL S.A. (XTRIM EC) 1.50ms from Guayaquil, EC
115.196.97.249 AS4134 CHINANET-BACKBONE 5.47ms from Hangzhou, CN
115.77.54.41 AS7552 Viettel Group 0.94ms from Ho Chi Minh City, VN
203.135.147.137 AS23881 UDomain Web Hosting Company Ltd 0.64ms from Hong Kong, HK
86.189.207.105 AS2856 British Telecommunications PLC 5.09ms from London, GB
51.141.239.201 AS8075 Microsoft Corporation 0.18ms from London, GB
91.206.128.137 AS20746 Telecom Italia S.p.A. 1.41ms from Milan, IT
12.168.247.105 AS7018 AT&T Enterprises, LLC 12.12ms from Philadelphia, US
39.66.12.105 AS4837 CHINA UNICOM China169 Backbone 6.69ms from Qingdao, CN
50.117.122.233 AS18779 EGIHosting 0.16ms from Santa Clara, US
125.184.36.137 AS17858 LG POWERCOMM 6.37ms from Seoul, KR
43.233.77.89 AS17506 ARTERIA Networks Corporation 1.38ms from Tokyo, JP
82.94.187.9 AS3265 KPN B.V. 0.64ms from Amsterdam, NL
51.138.31.57 AS8075 Microsoft Corporation 0.20ms from Amsterdam, NL
156.19.152.185 AS20115 Charter Communications LLC 14.22ms from Atlanta, US
179.131.207.105 AS18881 TELEFÔNICA BRASIL S.A 3.73ms from Brasilia, BR
4.16.127.25 AS3356 Level 3 Parent, LLC 0.38ms from Denver, US
75.71.61.105 AS7922 Comcast Cable Communications, LLC 1.84ms from Denver, US
63.155.106.153 AS209 CenturyLink Communications, LLC 3.06ms from Hillsboro, US
85.100.89.233 AS9121 Turk Telekomunikasyon Anonim Sirketi 18.68ms from Istanbul, TR
12.139.210.121 AS7018 AT&T Enterprises, LLC 0.67ms from Kansas City, US
23.90.178.201 AS21859 Zenlayer Inc 0.44ms from London, GB
104.163.223.57 AS1403 EBOX 13.45ms from Montreal, CA

Traceroute

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

$
traceroute -a -n -q1 -f4 143.58.5.28
traceroute to 143.58.5.28 (143.58.5.28): 64 hops max, 52 byte packets
4 [AS3356] 4.69.203.230 112.633 ms
5 [AS3356] 4.53.98.118 112.574 ms
6 *
7 *
8 *
9 [AS19977] 143.58.5.28 113.269 ms
Measurement taken from IPinfo ProbeNet in Zuerich, CH
On

Related Networks

What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS19977 at robtex.

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