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
143.58.4.81 ██████████ 1
143.58.1.248 ██████████ 1
143.58.1.250 ██████████ 1
143.58.5.247 ██████████ 1
143.58.5.109 ██████████ 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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Pingable IPs

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

IP Address ASN Details
143.58.5.203 AS19977 Mayer Brown LLP 1.18ms from Chicago, US
143.58.4.1 AS19977 Mayer Brown LLP 0.62ms from Chicago, US
143.58.1.249 AS19977 Mayer Brown LLP 2.14ms from Chicago, US
143.58.0.129 AS19977 Mayer Brown LLP 1.62ms from Chicago, US
143.58.2.1 AS19977 Mayer Brown LLP 2.33ms 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
67.140.201.9 AS7029 Windstream Communications LLC 7.50ms from Atlanta, US
117.8.161.201 AS4837 CHINA UNICOM China169 Backbone 4.46ms from Beijing, CN
160.187.117.233 AS139009 Windstream Communication Limited 0.67ms from Dhaka, BD
209.37.183.153 AS7018 AT&T Enterprises, LLC 9.12ms from Durham, US
202.175.52.233 AS4609 Companhia de Telecomunicacoes de Macau SARL 1.72ms from Hong Kong, HK
208.47.112.185 AS209 CenturyLink Communications, LLC 0.47ms from Kansas City, US
80.45.53.9 AS13285 TalkTalk Communications Limited 2.22ms from London, GB
188.86.28.105 AS12430 VODAFONE ESPANA S.A.U. 0.75ms from Madrid, ES
51.94.84.73 AS16509 Amazon.com, Inc. 5.69ms from Madrid, ES
203.78.208.73 AS703 Verizon Business 1.51ms from Mumbai, IN
79.45.3.25 AS3269 Telecom Italia S.p.A. 8.12ms from Naples, IT
210.238.105.169 AS2516 KDDI CORPORATION 2.08ms from Osaka, JP
34.32.224.137 AS396982 Google LLC 0.12ms from Oudeschip, NL
200.29.219.169 AS6429 Telmex Chile Internet S.A. 0.93ms from Santiago, CL
118.58.28.233 AS4766 Korea Telecom 5.02ms from Seoul, KR
111.102.95.9 AS2516 KDDI CORPORATION 2.02ms from Tokyo, JP
91.112.247.57 AS8447 A1 Telekom Austria AG 4.33ms from Vienna, AT
185.102.118.137 AS39824 JSC Alma Telecommunications 9.68ms from Astana, KZ
41.129.156.41 AS24863 Link Egypt (Link.NET) 8.77ms from Cairo, EG
122.185.255.185 AS9498 BHARTI Airtel Ltd. 1.75ms from Delhi, IN
81.157.63.201 AS2856 British Telecommunications PLC 5.83ms from Erith, GB
62.27.168.105 AS12312 ecotel communication ag 6.81ms from Frankfurt am Main, DE
136.144.44.153 AS203268 Digital Technology Co.Ltd. 0.35ms from Jeddah, SA
79.156.24.153 AS3352 TELEFONICA DE ESPANA S.A.U. 8.40ms from Madrid, ES
191.7.11.153 AS262595 OnNet Telecomunicacoes LTDA 11.94ms from Osasco, BR

Traceroute

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

$
traceroute -a -n -q1 -f2 143.58.1.206
traceroute to 143.58.1.206 (143.58.1.206): 64 hops max, 52 byte packets
2 [] 156.146.32.232 0.254 ms
4 [AS174] 154.54.82.201 0.882 ms
5 [AS174] 154.54.94.122 0.719 ms
6 [AS174] 154.24.17.130 2.723 ms
7 [AS174] 38.32.39.218 1.696 ms
8 *
9 *
10 *
11 [AS19977] 143.58.1.206 2.269 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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