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
143.58.1.248 ██████████ 1
143.58.1.250 ██████████ 1
143.58.5.247 ██████████ 1
143.58.5.109 ██████████ 1
143.58.4.81 ██████████ 1
143.58.1.249 ██████████ 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
143.58.4.1 AS19977 Mayer Brown LLP 0.60ms from Chicago, US
143.58.0.129 AS19977 Mayer Brown LLP 1.63ms from Chicago, US
143.58.2.1 AS19977 Mayer Brown LLP 2.11ms from Chicago, US
143.58.5.206 AS19977 Mayer Brown LLP 1.21ms from Chicago, US
143.58.1.206 AS19977 Mayer Brown LLP 2.13ms 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
154.246.65.217 AS36947 Telecom Algeria 12.94ms from Algiers, DZ
52.170.248.137 AS8075 Microsoft Corporation 0.43ms from Ashburn, US
65.140.140.57 AS209 CenturyLink Communications, LLC 9.95ms from Chicago, US
84.157.252.169 AS3320 Deutsche Telekom AG 3.69ms from Duesseldorf, DE
84.133.146.169 AS3320 Deutsche Telekom AG 4.50ms from Hamburg, DE
160.187.39.201 AS152989 System 443 Company Limited 0.63ms from Ho Chi Minh City, VN
61.35.179.217 AS3786 LG DACOM Corporation 1.61ms from Incheon, KR
190.186.36.25 AS25620 COTAS LTDA. 11.51ms from La Paz, BO
92.29.217.9 AS13285 TalkTalk Communications Limited 6.13ms from London, GB
72.134.150.201 AS20001 Charter Communications Inc 10.00ms from Los Angeles, US
97.101.120.169 AS33363 Charter Communications, Inc 9.18ms from Orlando, US
52.143.129.73 AS8075 Microsoft Corporation 0.36ms from Paris, FR
186.71.57.153 AS14522 SERVICIOS DE TELECOMUNICACIONES SETEL S.A. (XTRIM EC) 1.32ms from Quito, EC
54.152.73.153 AS14618 Amazon.com, Inc. 0.20ms from Reston, US
92.101.105.89 AS12389 PJSC Rostelecom 16.82ms from Saint Petersburg, RU
109.110.173.185 AS215035 CONNECT-IX SAS 0.26ms from Saint-Denis, FR
12.172.160.233 AS7018 AT&T Enterprises, LLC 4.28ms from San Jose, US
5.153.105.9 AS25400 Telia Norge AS 7.37ms from Sandefjord, NO
128.77.156.121 AS3292 TDC Holding A/S 0.77ms from Skanderborg, DK
176.74.79.73 AS34797 System Net Ltd 0.82ms from Tbilisi, GE
113.42.242.105 AS17506 ARTERIA Networks Corporation 1.06ms from Tokyo, JP
93.159.190.25 AS49785 P.P.H.U AWIST 5.50ms from Warsaw, PL
158.178.173.153 AS54253 Oracle Corporation 0.79ms from Zuerich, CH
46.140.246.25 AS6730 Sunrise GmbH 1.05ms from Zuerich, CH
105.106.216.185 AS36947 Telecom Algeria 12.03ms from Algiers, DZ

Traceroute

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

$
traceroute -a -n -q1 -f3 143.58.4.1
traceroute to 143.58.4.1 (143.58.4.1): 64 hops max, 52 byte packets
3 [AS1299] 213.248.83.12 0.563 ms
4 [AS1299] 62.115.137.62 5.083 ms
5 *
6 [AS3356] 4.68.71.157 1.256 ms
7 [AS3356] 4.69.203.254 46.061 ms
8 [AS19977] 143.58.4.1 84.559 ms
Measurement taken from IPinfo ProbeNet in Los Angeles, 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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