AS19977

Name: AS19977 — Mayer Brown LLP
Creator: ipdex

Mayer Brown LLP Unknown registered in United States

10IPv4 prefixes

0IPv6 prefixes

#20,288AS Rank

327/327RIS visibility

#3,209Rank in United States

2016-08-02Allocated

Mayer Brown LLP (AS19977) — Unknown, registered in United States. announces 10 IPv4 prefixes + 0 IPv6 prefixes. Rank in United States: #3209. Allocated: 2016-08-02.

IPv4 10IPv6 0

Announced prefixes · 10

v4 143.58.0.0/22 unknown
v4 143.58.0.0/24 unknown
v4 143.58.1.0/24 unknown
v4 143.58.2.0/24 unknown
v4 143.58.3.0/24 unknown
v4 143.58.4.0/22 unknown
v4 143.58.4.0/24 unknown
v4 143.58.5.0/24 unknown
v4 143.58.6.0/24 unknown
v4 143.58.7.0/24 unknown

Routing: 10 IPv4 · 0 IPv6 announced · RIS visibility 327/327 RIS peers · RIPEstat · 2026-06-17

Prefix history

Announced prefixes Source: ipdex daily snapshot · sparse rows, value holds until the next change (steps)

Data table

Day	Announced prefixes
2026-06-12	10
2026-06-13	10

AS topology · Customer cone 1

Providers · 2

AS3356 Level 3 Parent, LLC
AS174 Cogent Communications, LLC

Peers · 1

AS1000 LINK AMERICAN

Embed this on your site

Free badges and live charts — they update as the index does. No key, link back to ipdex.

Badge

Markdown

[![AS19977 on ipdex](https://ipdex.io/badge/asn/19977.svg)](https://ipdex.io/asn/AS19977/)

HTML

<a href="https://ipdex.io/asn/AS19977/"><img src="https://ipdex.io/badge/asn/19977.svg" alt="AS19977 on ipdex"></a>

Live chart (iframe)

<iframe src="https://ipdex.io/embed/asn/19977" width="680" height="260" frameborder="0" scrolling="no" title="ipdex chart" style="border:0;max-width:100%"></iframe>

oEmbed-enabled: paste the page URL into platforms that support oEmbed and the chart embeds automatically.