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
143.58.5.109 ██████████ 1
143.58.1.250 ██████████ 1
143.58.1.247 ██████████ 1
143.58.4.81 ██████████ 1
143.58.1.248 ██████████ 1
143.58.1.249 ██████████ 1

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Peers

There are 4 peers for this ASN.

Peers Name
AS1239 Cogent Communications, LLC
AS174 Cogent Communications, LLC
AS3356 Level 3 Parent, LLC
AS3549 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

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

IP Address ASN Details
143.58.5.22 AS19977 Mayer Brown LLP 0.98ms from Chicago, US
143.58.2.1 AS19977 Mayer Brown LLP 0.97ms from Chicago, US
143.58.4.1 AS19977 Mayer Brown LLP 0.60ms from Chicago, US
143.58.1.22 AS19977 Mayer Brown LLP 0.72ms from Chicago, US
143.58.3.19 AS19977 Mayer Brown LLP 0.77ms from Chicago, US
143.58.0.1 AS19977 Mayer Brown LLP 0.33ms from Chicago, US
143.58.7.19 AS19977 Mayer Brown LLP 1.01ms 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
213.127.233.249 AS33915 Vodafone Libertel B.V. 5.43ms from Amsterdam, NL
44.233.49.41 AS16509 Amazon.com, Inc. 0.15ms from Boardman, US
181.68.185.73 AS27831 Colombia Móvil 1.55ms from Bogotá, CO
181.107.201.73 AS7303 Telecom Argentina S.A. 1.10ms from Buenos Aires, AR
172.244.70.121 AS7922 Comcast Cable Communications, LLC 0.97ms from Chicago, US
108.129.220.185 AS16509 Amazon.com, Inc. 0.39ms from Dublin, IE
87.148.167.105 AS3320 Deutsche Telekom AG 8.69ms from Frankfurt am Main, DE
112.50.253.217 AS9808 China Mobile Communications Group Co., Ltd. 6.35ms from Fuzhou, CN
135.225.78.249 AS8075 Microsoft Corporation 0.20ms from Gaevle, SE
79.255.110.73 AS3320 Deutsche Telekom AG 4.05ms from Hamburg, DE
160.187.39.201 AS152989 System 443 Company Limited 0.63ms from Ho Chi Minh City, VN
110.39.1.57 AS38264 National WiMAX/IMS environment 1.55ms from Lahore, PK
103.49.138.137 AS58895 Ebone Network (PVT.) Limited 5.67ms from Lahore, PK
134.65.129.169 AS48101 Trooli Ltd. 0.79ms from London, GB
78.5.115.9 AS8968 BT Italia S.p.A. 6.24ms from Milan, IT
47.18.4.153 AS6128 Cablevision Systems Corp. 7.85ms from New York City, US
74.105.252.201 AS701 Verizon Business 3.52ms from New York City, US
108.41.209.169 AS701 Verizon Business 2.63ms from New York City, US
126.113.59.89 AS17676 SoftBank Corp. 1.35ms from Osaka, JP
192.84.76.25 AS786 Jisc Services Limited 4.57ms from Sheffield, GB
95.156.3.73 AS6821 Makedonski Telekom AD-Skopje 1.90ms from Skopje, MK
179.95.243.185 AS18881 TELEFÔNICA BRASIL S.A 8.10ms from São Paulo, BR
104.58.189.41 AS7018 AT&T Enterprises, LLC 6.40ms from Atlanta, US
125.20.67.105 AS9498 BHARTI Airtel Ltd. 0.58ms from Bengaluru, IN
223.184.47.153 AS24560 Bharti Airtel Ltd., Telemedia Services 6.47ms from Delhi, IN

Traceroute

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

$
traceroute -a -n -q1 -f3 143.58.0.129
traceroute to 143.58.0.129 (143.58.0.129): 64 hops max, 52 byte packets
3 [AS174] 154.24.13.222 0.986 ms
4 [AS19977] 143.58.0.129 0.397 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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