AS number 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
Number of IPv4 2,048
Number of IPv6 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
143.58.1.250 ██████████ 1
143.58.1.248 ██████████ 1
143.58.1.249 ██████████ 1
143.58.5.109 ██████████ 1
143.58.4.81 ██████████ 1
143.58.1.247 ██████████ 1

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Peers

There are 2 peers for this ASN.

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

There are 2 upstreams for this ASN.

upstreams Name
AS174 Cogent Communications
AS3356 Level 3 Parent, LLC
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ASN API ASN Database Download

Downstreams

There are no downstreams for this ASN.

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Pingable IPs

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

IP Address ASN Details
143.58.1.199 AS19977 Mayer Brown LLP 2.13ms from Chicago, US
143.58.0.129 AS19977 Mayer Brown LLP 1.61ms from Chicago, US
143.58.2.1 AS19977 Mayer Brown LLP 2.28ms from Chicago, US
143.58.5.28 AS19977 Mayer Brown LLP 1.16ms from Chicago, US
143.58.4.1 AS19977 Mayer Brown LLP 0.72ms 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
85.148.145.169 AS5390 Euronet Communications B.V. 1.45ms from Amsterdam, NL
80.95.65.137 AS20845 DIGI Tavkozlesi es Szolgaltato Kft. 1.14ms from Budapest, HU
41.232.194.105 AS8452 TE-AS 9.44ms from Cairo, EG
172.244.70.121 AS7922 Comcast Cable Communications, LLC 0.96ms from Chicago, US
217.89.161.185 AS3320 Deutsche Telekom AG 1.32ms from Duesseldorf, DE
91.49.164.73 AS3320 Deutsche Telekom AG 4.12ms from Duesseldorf, DE
130.61.55.121 AS31898 Oracle Corporation 0.44ms from Frankfurt am Main, DE
130.61.133.153 AS31898 Oracle Corporation 0.34ms from Frankfurt am Main, DE
84.190.124.249 AS3320 Deutsche Telekom AG 7.49ms from Frankfurt am Main, DE
87.93.223.249 AS16086 DNA Oyj 10.84ms from Helsinki, FI
160.187.39.201 AS152989 System 443 Company Limited 0.64ms from Ho Chi Minh City, VN
195.24.156.57 AS6702 Science Production Company "Trifle" Ltd. 7.10ms from Kyiv, UA
82.43.118.9 AS5089 Virgin Media Limited 10.95ms from London, GB
90.210.187.105 AS5607 Sky UK Limited 1.17ms from London, GB
87.80.75.105 AS5607 Sky UK Limited 2.41ms from London, GB
83.56.238.105 AS3352 TELEFONICA DE ESPANA S.A.U. 1.19ms from Madrid, ES
105.76.123.73 AS36884 Wana Corporate 15.21ms from Madrid, ES
84.16.137.185 AS12714 PJSC MegaFon 1.50ms from Moscow, RU
163.61.101.217 AS138251 PLAYWEB TECHNOLOGIES PRIVATE LIMITED 6.95ms from Mumbai, IN
74.67.58.233 AS11351 Charter Communications Inc 19.25ms from New York City, US
126.22.74.25 AS17676 SoftBank Corp. 3.36ms from Osaka, JP
1.223.227.121 AS3786 LG DACOM Corporation 1.50ms from Seoul, KR
115.7.239.201 AS4766 Korea Telecom 6.51ms from Seoul, KR
110.8.202.217 AS9318 SK Broadband Co Ltd 1.56ms from Seoul, KR
117.184.183.233 AS24400 Shanghai Mobile Communications Co.,Ltd. 2.78ms from Shanghai, CN

Traceroute

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

$
traceroute -a -n -q1 -f5 143.58.4.1
traceroute to 143.58.4.1 (143.58.4.1): 64 hops max, 52 byte packets
5 [AS3356] 4.69.203.230 109.693 ms
6 [AS19977] 143.58.4.1 109.329 ms
Measurement taken from IPinfo ProbeNet in Madrid, ES
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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