Country
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ASN LANDING PAGE
AS21050
FAST-TELCO Fast Communication Company Ltd
Last updated · Apr 10, 2026
Total prefixes
393
IPv4 prefixes
392
IPv6 prefixes
1
ASN summary
How to read the scale of AS21050
FAST-TELCO Fast Communication Company Ltd currently shows 393 prefixes and 33 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 AS21050?
FAST-TELCO Fast Communication Company Ltd 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 AS21050 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
AS21050 ASN lookupAS21050 BGPAS21050 peersAS21050 prefixesAS21050 upstreamsFAST-TELCO Fast Communication Company Ltd ASN
Upstreams
Detailed data for this ASN is not available right now.
Downstreams
AS43184
AS43184
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AS29237
AS29237
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AS52081
AS52081
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AS45246
AS45246
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AS203147
AS203147
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AS41890
AS41890
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AS201756
AS201756
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AS56753
AS56753
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AS57719
AS57719
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AS199869
AS199869
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AS25370
AS25370
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AS50774
AS50774
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AS35181
AS35181
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AS42606
AS42606
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AS43158
AS43158
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AS213397
AS213397
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AS25122
AS25122
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AS41576
AS41576
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AS202414
AS202414
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AS204638
AS204638
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AS199729
AS199729
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AS29029
AS29029
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AS49104
AS49104
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AS204367
AS204367
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AS197456
AS197456
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AS215053
AS215053
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AS199526
AS199526
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AS208710
AS208710
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AS25242
AS25242
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AS213749
AS213749
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AS60992
AS60992
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Peers
Prefix inventory
| Prefix | Name | Country |
|---|---|---|
| 161.252.112.0/24 | AS21050 | — |
| 161.252.16.0/24 | AS21050 | — |
| 161.252.32.0/24 | AS21050 | — |
| 161.252.33.0/24 | AS21050 | — |
| 161.252.49.0/24 | AS21050 | — |
| 161.252.75.0/24 | AS21050 | — |
| 161.252.80.0/24 | AS21050 | — |
| 178.61.0.0/16 | AS21050 | — |
| 178.61.0.0/20 | AS21050 | — |
| 178.61.105.0/24 | AS21050 | — |
| 178.61.106.0/24 | AS21050 | — |
| 178.61.107.0/24 | AS21050 | — |
| 178.61.123.0/24 | AS21050 | — |
| 178.61.124.0/23 | AS21050 | — |
| 178.61.124.0/24 | AS21050 | — |
| 178.61.125.0/24 | AS21050 | — |
| 178.61.126.0/24 | AS21050 | — |
| 178.61.127.0/24 | AS21050 | — |
| 178.61.128.0/19 | AS21050 | — |
| 178.61.128.0/24 | AS21050 | — |
| 178.61.135.0/24 | AS21050 | — |
| 178.61.136.0/21 | AS21050 | — |
| 178.61.142.0/24 | AS21050 | — |
| 178.61.146.0/24 | AS21050 | — |
| 178.61.150.0/24 | AS21050 | — |
| 178.61.152.0/21 | AS21050 | — |
| 178.61.152.0/24 | AS21050 | — |
| 178.61.157.0/24 | AS21050 | — |
| 178.61.158.0/24 | AS21050 | — |
| 178.61.16.0/20 | AS21050 | — |
| 178.61.160.0/24 | AS21050 | — |
| 178.61.161.0/24 | AS21050 | — |
| 178.61.162.0/24 | AS21050 | — |
| 178.61.163.0/24 | AS21050 | — |
| 178.61.164.0/24 | AS21050 | — |
| 178.61.165.0/24 | AS21050 | — |
| 178.61.166.0/24 | AS21050 | — |
| 178.61.167.0/24 | AS21050 | — |
| 178.61.168.0/24 | AS21050 | — |
| 178.61.169.0/24 | AS21050 | — |
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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 AS21050 represent?
AS21050 is an autonomous system number used to identify an independently operated network. The current page associates it with FAST-TELCO Fast Communication Company Ltd 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 AS21050 page?
They help explain the scale, interconnection depth, and route structure of AS21050. 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 AS21050?
The best next step is usually to return to a concrete IP landing page to see how a specific address maps into AS21050, 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.