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
143.58.5.109 ██████████ 1
143.58.1.248 ██████████ 1
143.58.1.249 ██████████ 1
143.58.5.247 ██████████ 1
143.58.1.250 ██████████ 1
143.58.4.81 ██████████ 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
143.58.0.129 AS19977 Mayer Brown LLP 1.63ms from Chicago, US
143.58.1.201 AS19977 Mayer Brown LLP 2.21ms from Chicago, US
143.58.5.110 AS19977 Mayer Brown LLP 1.17ms from Chicago, US
143.58.4.1 AS19977 Mayer Brown LLP 0.71ms from Chicago, US
143.58.2.1 AS19977 Mayer Brown LLP 2.23ms 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
68.187.211.41 AS20115 Charter Communications LLC 12.87ms from Ashburn, US
61.50.207.9 AS4808 China Unicom Beijing Province Network 4.17ms from Beijing, CN
181.237.46.73 AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC 3.28ms from Bogota, CO
73.89.80.25 AS7922 Comcast Cable Communications, LLC 6.70ms from Boston, US
193.116.98.25 AS7545 TPG Telecom Limited 1.60ms from Brisbane, AU
86.121.37.73 AS8708 DIGI ROMANIA S.A. 0.96ms from Bucharest, RO
156.213.176.57 AS8452 TE-AS 4.34ms from Cairo, EG
70.92.60.185 AS11427 Charter Communications Inc 1.88ms from Dallas, US
65.153.93.121 AS209 CenturyLink Communications, LLC 0.62ms from Denver, US
81.8.121.217 AS15924 Vodafone Net Iletisim Hizmetler AS 3.16ms from Istanbul, TR
110.93.239.185 AS38193 Transworld Associates (Pvt.) Ltd. 0.37ms from Karachi, PK
154.123.147.153 AS12455 Kenyan Post & Telecommunications Company / Telkom Kenya Ltd 17.23ms from Nairobi, KE
190.98.220.89 AS14259 Gtd Internet S.A. 0.64ms from Santiago, CL
1.223.227.121 AS3786 LG DACOM Corporation 1.36ms from Seoul, KR
118.54.232.153 AS4766 Korea Telecom 1.86ms from Seoul, KR
221.255.248.73 AS17506 ARTERIA Networks Corporation 15.89ms from Tokyo, JP
79.187.174.137 AS5617 Orange Polska Spolka Akcyjna 1.77ms from Warsaw, PL
82.94.187.9 AS3265 KPN B.V. 0.66ms from Amsterdam, NL
85.148.145.169 AS5390 EuroNet 1.16ms from Amsterdam, NL
47.13.190.217 AS20115 Charter Communications LLC 17.45ms from Atlanta, US
74.199.173.41 AS3257 GTT Communications Inc. 0.36ms from Atlanta, US
125.20.67.105 AS9498 BHARTI Airtel Ltd. 0.70ms from Bengaluru, IN
213.23.217.89 AS3209 Vodafone GmbH 11.43ms from Duesseldorf, DE
113.106.108.105 AS4134 CHINANET-BACKBONE 3.30ms from Guangzhou, CN
113.225.230.89 AS4837 CHINA UNICOM China169 Backbone 8.48ms from Harbin, CN

Traceroute

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

$
traceroute -a -n -q1 -f2 -m7 143.58.6.216
traceroute to 143.58.6.216 (143.58.6.216): 7 hops max, 52 byte packets
2 [AS3356] 4.1.40.153 4.249 ms
3 [AS3356] 4.69.203.254 55.631 ms
4 [AS3356] 4.53.98.118 55.196 ms
5 *
6 *
7 *
Measurement taken from IPinfo ProbeNet in Bend, 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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