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 10 years ago on Aug 02, 2016
Updated 10 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
143.58.5.109 ██████████ 1
143.58.1.250 ██████████ 1
143.58.1.247 ██████████ 1
143.58.4.81 ██████████ 1
143.58.1.248 ██████████ 1
143.58.1.249 ██████████ 1

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Peers

There are 3 peers for this ASN.

Peers Name
AS1239 Cogent Communications, LLC
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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Pingable IPs

7 IPs in this ASN 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 0.35ms from Chicago, US
143.58.3.19 AS19977 Mayer Brown LLP 1.56ms from Chicago, US
143.58.7.19 AS19977 Mayer Brown LLP 1.02ms from Chicago, US
143.58.1.73 AS19977 Mayer Brown LLP 0.70ms from Chicago, US
143.58.4.1 AS19977 Mayer Brown LLP 0.61ms from Chicago, US
143.58.2.1 AS19977 Mayer Brown LLP 0.94ms from Chicago, US
143.58.5.22 AS19977 Mayer Brown LLP 1.00ms 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
94.206.43.249 AS15802 Emirates Integrated Telecommunications Company PJSC 1.71ms from Abu Dhabi, AE
212.85.193.217 AS29340 SP ECHO GHANA LIMITED 0.41ms from Accra, GH
44.235.201.57 AS16509 Amazon.com, Inc. 0.13ms from Boardman, US
18.1.95.233 AS3 Massachusetts Institute of Technology 0.46ms from Boston, US
185.96.170.41 AS31486 VERITEKNIK BILISIM BASIN VE YAYIN LIMITED SIRKETI 0.16ms from Bursa, TR
200.41.116.105 AS3549 Level 3 Parent, LLC 0.40ms from Caracas, VE
204.16.36.121 AS11492 CABLE ONE, INC. 7.79ms from Chicago, US
63.210.245.89 AS3356 Level 3 Parent, LLC 1.18ms from Cincinnati, US
50.202.237.233 AS7922 Comcast Cable Communications, LLC 0.70ms from Dallas, US
76.9.123.249 AS36394 Grid4 Communications, Inc 0.98ms from Detroit, US
217.83.57.25 AS3320 Deutsche Telekom AG 3.13ms from Duesseldorf, DE
194.39.133.121 AS14114 SAP America Inc. 3.28ms from Frankfurt am Main, DE
186.151.163.137 AS14754 TELECOMUNICACIONES DE GUATEMALA, SOCIEDAD ANONIMA 3.98ms from Guatemala City, GT
41.220.24.57 AS37204 Telone PVT Ltd 14.89ms from Johannesburg, ZA
67.55.203.57 AS5056 Aureon Network Services 8.04ms from Kansas City, US
110.93.239.185 AS38193 Transworld Associates (Pvt.) Ltd. 0.39ms from Karachi, PK
41.217.206.73 AS37125 Layer3 Limited 10.17ms from Lagos, NG
86.3.167.41 AS5089 Virgin Media Limited 6.05ms from London, GB
122.55.215.105 AS9299 Philippine Long Distance Telephone Company 0.50ms from Manila, PH
199.66.72.185 AS25694 Atomic Data LLC 0.35ms from Minneapolis, US
94.233.6.249 AS12389 PJSC Rostelecom 18.77ms from Moscow, RU
96.85.65.41 AS7922 Comcast Cable Communications, LLC 11.60ms from Orlando, US
63.235.17.57 AS209 CenturyLink Communications, LLC 1.95ms from Phoenix, US
179.136.255.137 AS28573 Claro NXT Telecomunicacoes Ltda 15.12ms from Rio de Janeiro, BR
182.227.195.73 AS17858 LG POWERCOMM 3.57ms from Seoul, KR

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. 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 0.832 ms
4 [AS19977] 143.58.0.1 0.37 ms
Measurement taken from IPinfo ProbeNet in Chicago, US
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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