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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Pingable IPs

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

IP Address ASN Details
143.58.5.30 AS19977 Mayer Brown LLP 1.18ms from Chicago, US
143.58.4.1 AS19977 Mayer Brown LLP 0.58ms from Chicago, US
143.58.1.110 AS19977 Mayer Brown LLP 0.95ms from Chicago, US
143.58.0.1 AS19977 Mayer Brown LLP 0.34ms 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
92.70.111.169 AS1136 KPN B.V. 3.62ms from Amsterdam, NL
23.29.52.153 AS400615 Data Canopy Colocation, LLC 1.18ms from Ashburn, US
206.72.19.25 AS5056 Aureon Network Services 8.71ms from Des Moines, US
107.204.33.73 AS7018 AT&T Enterprises, LLC 2.44ms from Los Angeles, US
84.66.111.41 AS5378 Vodafone Limited 6.60ms from Manchester, GB
108.53.106.105 AS701 Verizon Business 1.84ms from New York City, US
58.81.246.57 AS17506 ARTERIA Networks Corporation 8.10ms from Osaka, JP
109.110.173.185 AS215035 CONNECT-IX SAS 0.33ms from Paris, FR
85.93.163.41 AS197013 Sprintel s.r.o. 6.13ms from Prague, CZ
190.153.241.233 AS14259 Gtd Internet S.A. 0.69ms from Santiago, CL
77.117.25.233 AS25255 ==> TELE2 AUSTRIA <== 9.44ms from Vienna, AT
190.200.45.217 AS8048 CANTV Servicios, Venezuela 10.12ms from Willemstad, CW
162.151.58.201 AS7922 Comcast Cable Communications, LLC 2.98ms from Ashburn, US
185.76.55.201 AS212212 Power NMS VPP SRL 0.34ms from Bucharest, RO
172.72.39.249 AS11426 Charter Communications Inc 3.36ms from Charlotte, US
172.244.70.121 AS7922 Comcast Cable Communications, LLC 0.98ms from Chicago, US
200.10.5.137 AS28343 UNIFIQUE TELECOMUNICACOES S/A 4.87ms from Curitiba, BR
61.244.113.89 AS10103 HK Broadband Network Ltd. 0.77ms from Hong Kong, HK
97.77.209.249 AS11427 Charter Communications Inc 0.91ms from Houston, US
121.169.4.233 AS4766 Korea Telecom 1.79ms from Incheon, KR
104.3.167.153 AS7018 AT&T Enterprises, LLC 9.16ms from Kansas City, US
149.90.64.169 AS12353 Vodafone Portugal 6.52ms from Lisbon, PT
137.27.124.169 AS20115 Charter Communications LLC 7.82ms from Minneapolis, US
189.127.90.41 AS262589 SAMM TECNOLOGIA E TELECOMUNICACOES S.A 6.84ms from Osasco, BR
24.22.97.169 AS7922 Comcast Cable Communications, LLC 2.51ms from Portland, US

Traceroute

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

$
traceroute -a -n -q1 -f2 -m8 143.58.6.220
traceroute to 143.58.6.220 (143.58.6.220): 8 hops max, 52 byte packets
2 [AS55805] 27.123.215.249 162.223 ms
3 *
5 [AS55805] 27.123.212.25 58.309 ms
6 *
7 *
8 *
Measurement taken from IPinfo ProbeNet in Ulan Bator, MN
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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