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
143.58.1.247 ██████████ 1
143.58.4.81 ██████████ 1
143.58.1.248 ██████████ 1
143.58.1.250 ██████████ 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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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
143.58.1.249 AS19977 Mayer Brown LLP 2.16ms from Chicago, US
143.58.4.1 AS19977 Mayer Brown LLP 0.60ms from Chicago, US
143.58.0.129 AS19977 Mayer Brown LLP 1.60ms from Chicago, US
143.58.2.1 AS19977 Mayer Brown LLP 2.24ms from Chicago, US
143.58.5.62 AS19977 Mayer Brown LLP 1.18ms 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
41.139.57.25 AS35091 Teledata, Ghana 0.77ms from Accra, GH
50.107.182.233 AS5650 Frontier Communications of America, Inc. 13.77ms from Ashburn, US
52.170.248.137 AS8075 Microsoft Corporation 0.40ms from Ashburn, US
44.230.74.249 AS16509 Amazon.com, Inc. 0.14ms from Boardman, US
66.31.242.153 AS7922 Comcast Cable Communications, LLC 7.39ms from Boston, US
75.177.73.217 AS11426 Charter Communications Inc 11.24ms from Charlotte, US
132.232.51.57 AS45090 Shenzhen Tencent Computer Systems Company Limited 0.82ms from Chengdu, CN
12.148.172.25 AS7018 AT&T Enterprises, LLC 5.38ms from Chicago, US
64.236.240.217 AS8075 Microsoft Corporation 0.42ms from Chicago, US
93.226.186.137 AS3320 Deutsche Telekom AG 4.88ms from Duesseldorf, DE
160.187.39.201 AS152989 System 443 Company Limited 0.64ms from Ho Chi Minh City, VN
175.148.147.217 AS4837 CHINA UNICOM China169 Backbone 5.47ms from Liaoyang, CN
47.176.103.121 AS5650 Frontier Communications of America, Inc. 0.60ms from Los Angeles, US
180.193.205.169 AS9299 Philippine Long Distance Telephone Company 1.26ms from Manila, PH
203.44.123.57 AS1221 Telstra Limited 1.58ms from Melbourne, AU
201.157.157.217 AS28376 Gigacable de Aguascalientes, S.A. de C.V. 12.50ms from Mexico City, MX
71.57.164.105 AS7922 Comcast Cable Communications, LLC 5.39ms from Miami, US
217.26.195.249 AS44407 Linkt SAS 0.24ms from Paris, FR
12.172.160.233 AS7018 AT&T Enterprises, LLC 4.38ms from Redding, US
201.59.206.201 AS7738 V tal 1.36ms from Rio de Janeiro, BR
117.215.138.137 AS9829 National Internet Backbone 17.24ms from Saint Thomas Mount, IN
162.144.132.9 AS46606 Unified Layer 1.95ms from Salt Lake City, US
67.169.159.217 AS7922 Comcast Cable Communications, LLC 4.52ms from San Jose, US
58.79.250.105 AS3786 LG DACOM Corporation 2.36ms from Seoul, KR
27.233.20.137 AS4766 Korea Telecom 2.87ms from Seoul, KR

Traceroute

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

$
traceroute -a -n -q1 143.58.4.1
traceroute to 143.58.4.1 (143.58.4.1): 64 hops max, 52 byte packets
2 [AS7195] 200.25.51.58 0.129 ms
3 [AS3356] 8.243.220.221 0.827 ms
4 [AS3356] 4.69.203.254 43.515 ms
5 [AS19977] 143.58.4.1 43.062 ms
Measurement taken from IPinfo ProbeNet in Santiago de Queretaro, MX
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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