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
143.58.1.247 ██████████ 1
143.58.1.250 ██████████ 1
143.58.1.248 ██████████ 1
143.58.4.81 ██████████ 1
143.58.1.249 ██████████ 1
143.58.5.109 ██████████ 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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ASN API & Database

Pingable IPs

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

IP Address ASN Details
143.58.3.19 AS19977 Mayer Brown LLP 0.82ms from Chicago, US
143.58.0.1 AS19977 Mayer Brown LLP 0.34ms from Chicago, US
143.58.1.73 AS19977 Mayer Brown LLP 0.79ms from Chicago, US
143.58.7.19 AS19977 Mayer Brown LLP 1.02ms from Chicago, US
143.58.5.73 AS19977 Mayer Brown LLP 0.95ms from Chicago, US
143.58.4.1 AS19977 Mayer Brown LLP 0.58ms from Chicago, US
143.58.2.1 AS19977 Mayer Brown LLP 0.99ms 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
123.50.139.25 AS17551 Anycast Global Backbone 1.13ms from Adelaide, AU
145.107.122.73 AS1103 SURF B.V. 3.36ms from Amsterdam, NL
185.244.94.169 AS397423 Tier.Net Technologies LLC 0.11ms from Ashburn, US
162.151.58.201 AS7922 Comcast Cable Communications, LLC 2.98ms from Ashburn, US
52.24.241.185 AS16509 Amazon.com, Inc. 0.18ms from Boardman, US
65.140.140.57 AS209 CenturyLink Communications, LLC 9.92ms from Chicago, US
64.158.91.169 AS3356 Level 3 Parent, LLC 11.03ms from Dallas, US
88.79.186.9 AS3209 Vodafone GmbH 1.73ms from Duesseldorf, DE
36.37.99.25 AS4800 PT Aplikanusa Lintasarta 1.22ms from Jakarta, ID
80.168.49.105 AS8426 ClaraNET LTD 0.32ms from London, GB
108.165.106.73 AS63023 GTHost 0.10ms from Phoenix, US
112.246.155.249 AS4837 CHINA UNICOM China169 Backbone 4.47ms from Qingdao, CN
190.164.43.25 AS22047 VTR BANDA ANCHA S.A. 9.17ms from Santiago, CL
186.239.135.137 AS10429 TELEFÔNICA BRASIL S.A 0.97ms from Sao Paulo, BR
106.75.233.233 AS17621 China Unicom Shanghai network 3.61ms from Shanghai, CN
216.106.17.153 AS4581 Socket Holdings Corporation 3.19ms from St. Louis, US
43.212.101.201 AS16509 Amazon.com, Inc. 0.17ms from Taipei, TW
192.186.96.233 AS7992 Cogeco Connexion Inc. 7.78ms from Toronto, CA
94.201.113.9 AS15802 Emirates Integrated Telecommunications Company PJSC 0.52ms from Abu Dhabi, AE
8.152.198.89 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 1.51ms from Beijing, CN
173.9.6.249 AS7922 Comcast Cable Communications, LLC 5.85ms from Boston, US
197.230.137.73 AS36925 MEDITELECOM 2.02ms from Casablanca, MA
113.171.226.57 AS45899 VNPT Corp 0.52ms from Da Nang, VN
48.201.81.137 AS8075 Microsoft Corporation 0.31ms from Frankfurt am Main, DE
14.255.106.137 AS45899 VNPT Corp 3.49ms from Hanoi, VN

Traceroute

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

$
traceroute -a -n -q1 -f3 143.58.1.248
traceroute to 143.58.1.248 (143.58.1.248): 64 hops max, 52 byte packets
4 [AS174] 38.32.39.218 0.362 ms
5 *
6 *
7 *
8 [AS19977] 143.58.1.248 1.021 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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