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ASN LANDING PAGE

AS11172

Alestra

Last updated · Apr 4, 2026

Country

—

Total prefixes

3372

IPv4 prefixes

911

IPv6 prefixes

2461

ASN summary

How to read the scale of AS11172

Alestra currently shows 3372 prefixes and 49 upstream, downstream, or peer relationships. Larger prefix inventories often indicate broader network footprint, but they should still be read together with country and peering context.

When is an ASN page most useful?

ASN landing pages are more useful than a single IP page when you want cloud provider attribution, routing research, infrastructure comparison, or network topology analysis at the organization level.

How should you read the country, organization, and role of AS11172?

Alestra is currently associated with an unknown region. Country data is only a starting point; the more important signals are the organization name, website, prefix volume, and peering relationships that reveal whether the network behaves like a cloud platform, ISP, CDN, or enterprise backbone.

What should you inspect next after the AS11172 page?

This page is currently showing live ASN data that can be used for peer, prefix, and network scale analysis. The most useful next step is usually to return to a related IP landing page, then compare that concrete address with this ASN profile and with broader topic pages for routing, cloud attribution, or WHOIS ownership analysis.

Search intents this ASN page helps cover

AS11172 ASN lookupAS11172 BGPAS11172 peersAS11172 prefixesAS11172 upstreamsAlestra ASN

Upstreams

Detailed data for this ASN is not available right now.

Downstreams

AS10436

AS10436

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AS10479

AS10479

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AS265604

AS265604

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AS28546

AS28546

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AS28506

AS28506

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AS28539

AS28539

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AS265615

AS265615

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AS11136

AS11136

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AS8007

AS8007

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AS7038

AS7038

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AS23154

AS23154

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AS17072

AS17072

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AS265504

AS265504

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AS28418

AS28418

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AS10560

AS10560

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AS265593

AS265593

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AS270128

AS270128

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AS270145

AS270145

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AS265621

AS265621

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AS265612

AS265612

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AS15107

AS15107

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AS265551

AS265551

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AS265586

AS265586

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AS270217

AS270217

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AS3573

AS3573

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AS273278

AS273278

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AS28502

AS28502

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AS28374

AS28374

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AS10706

AS10706

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AS6342

AS6342

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AS265599

AS265599

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AS278

AS278

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AS265578

AS265578

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AS28381

AS28381

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AS11519

AS11519

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AS265625

AS265625

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AS272409

AS272409

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AS273273

AS273273

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AS265607

AS265607

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AS265535

AS265535

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Prefix inventory

PrefixNameCountry
143.202.156.0/22AS11172—
143.202.156.0/24AS11172—
143.202.157.0/24AS11172—
143.202.158.0/24AS11172—
148.211.0.0/16AS11172—
148.216.0.0/16AS11172—
148.238.0.0/16AS11172—
148.243.130.0/24AS11172—
148.244.0.0/16AS11172—
148.244.100.0/24AS11172—
148.244.104.0/21AS11172—
148.244.104.0/24AS11172—
148.244.105.0/24AS11172—
148.244.110.0/24AS11172—
148.244.111.0/24AS11172—
148.244.112.0/21AS11172—
148.244.112.0/24AS11172—
148.244.113.0/24AS11172—
148.244.115.0/24AS11172—
148.244.116.0/24AS11172—
148.244.117.0/24AS11172—
148.244.118.0/24AS11172—
148.244.119.0/24AS11172—
148.244.120.0/21AS11172—
148.244.122.0/24AS11172—
148.244.126.0/24AS11172—
148.244.127.0/24AS11172—
148.244.128.0/18AS11172—
148.244.128.0/21AS11172—
148.244.128.0/24AS11172—
148.244.129.0/24AS11172—
148.244.131.0/24AS11172—
148.244.132.0/24AS11172—
148.244.133.0/24AS11172—
148.244.134.0/24AS11172—
148.244.136.0/21AS11172—
148.244.137.0/24AS11172—
148.244.138.0/24AS11172—
148.244.139.0/24AS11172—
148.244.141.0/24AS11172—

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Related lookups and next steps

WHOIS vs ASN Ownership Guide

Continue from this ASN into the differences between WHOIS ownership and ASN ownership.

Routing Troubleshooting and Network Analysis

Continue from this ASN into route troubleshooting and network analysis.

Cloud Network and ASN Comparison

Useful when you want to compare this ASN against larger cloud and edge networks.

WHOIS and IP Ownership Guide

Continue from the ASN page into WHOIS and ownership verification.

Frequently asked questions about this ASN page

What does AS11172 represent?

AS11172 is an autonomous system number used to identify an independently operated network. The current page associates it with Alestra in an unknown region, which helps determine whether it behaves like a cloud provider, ISP, CDN, or enterprise backbone.

What are peers, upstreams, and prefixes useful for on the AS11172 page?

They help explain the scale, interconnection depth, and route structure of AS11172. Richer peering and upstream data often indicate broader network reach, but they should still be interpreted together with prefixes and related IP landing pages.

What should you do after reviewing AS11172?

The best next step is usually to return to a concrete IP landing page to see how a specific address maps into AS11172, then continue into cloud, WHOIS, or routing topic pages to understand the network in a broader context.

Related topics

WHOIS vs ASN Ownership Guide

Understand why WHOIS ownership and ASN ownership can differ, and how to combine both when deciding who really owns or operates an IP.

WHOIS and IP Ownership Guide

Use WHOIS, ASN, prefixes, and organization data to determine who ultimately owns an IP, range, or resolved domain target.

BGP and ASN Basics Guide

Learn what ASN, BGP routes, prefixes, upstreams, downstreams, and peers mean, then explore real ASN pages.

Cloud Network and ASN Comparison

Compare large cloud and edge networks such as Google, Cloudflare, Microsoft, and Amazon through their ASN landing pages.