Country
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ASN LANDING PAGE
AS15412
FLAG-AS - FLAG TELECOM UK LIMITED
Last updated · Apr 4, 2026
Total prefixes
22
IPv4 prefixes
21
IPv6 prefixes
1
ASN summary
How to read the scale of AS15412
FLAG-AS - FLAG TELECOM UK LIMITED currently shows 22 prefixes and 80 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 AS15412?
FLAG-AS - FLAG TELECOM UK LIMITED 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 AS15412 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
AS15412 ASN lookupAS15412 BGPAS15412 peersAS15412 prefixesAS15412 upstreamsFLAG-AS - FLAG TELECOM UK LIMITED ASN
Upstreams
Detailed data for this ASN is not available right now.
Downstreams
AS9304
AS9304
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AS4826
AS4826
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AS135607
AS135607
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AS45903
AS45903
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AS18101
AS18101
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AS9848
AS9848
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AS174
AS174
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AS8452
AS8452
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AS17408
AS17408
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AS15802
AS15802
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AS45629
AS45629
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AS5416
AS5416
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AS6453
AS6453
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AS57187
AS57187
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AS33788
AS33788
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AS23930
AS23930
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AS9924
AS9924
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AS7568
AS7568
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AS55355
AS55355
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AS35019
AS35019
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AS47589
AS47589
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AS1299
AS1299
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AS260
AS260
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AS3491
AS3491
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AS9416
AS9416
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AS29357
AS29357
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AS6412
AS6412
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AS30873
AS30873
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AS23749
AS23749
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AS10133
AS10133
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AS11164
AS11164
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AS202414
AS202414
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AS17470
AS17470
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AS3320
AS3320
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AS10098
AS10098
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AS29664
AS29664
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AS133012
AS133012
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AS40339
AS40339
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AS17639
AS17639
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AS34945
AS34945
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Peers
AS6939
AS6939
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AS15802
AS15802
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AS1299
AS1299
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AS6762
AS6762
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AS2914
AS2914
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AS174
AS174
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AS13030
AS13030
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AS9304
AS9304
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AS18041
AS18041
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AS199524
AS199524
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AS24482
AS24482
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AS38855
AS38855
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AS3491
AS3491
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AS3320
AS3320
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AS8218
AS8218
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AS6461
AS6461
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AS60068
AS60068
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AS6908
AS6908
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AS41327
AS41327
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AS55720
AS55720
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AS24961
AS24961
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AS1103
AS1103
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AS5405
AS5405
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AS6453
AS6453
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AS6894
AS6894
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AS48070
AS48070
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AS13237
AS13237
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AS8529
AS8529
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AS35266
AS35266
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AS38008
AS38008
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AS62167
AS62167
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AS8426
AS8426
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AS31742
AS31742
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AS1257
AS1257
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AS212483
AS212483
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AS198150
AS198150
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AS17639
AS17639
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AS4455
AS4455
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AS19151
AS19151
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AS6667
AS6667
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Prefix inventory
| Prefix | Name | Country |
|---|---|---|
| 103.103.152.0/22 | AS15412 | — |
| 103.11.237.0/24 | AS15412 | — |
| 103.144.202.0/23 | AS15412 | — |
| 103.15.116.0/22 | AS15412 | — |
| 103.154.20.0/23 | AS15412 | — |
| 103.225.192.0/22 | AS15412 | — |
| 103.5.160.0/22 | AS15412 | — |
| 103.8.84.0/24 | AS15412 | — |
| 103.8.85.0/24 | AS15412 | — |
| 103.8.86.0/24 | AS15412 | — |
| 103.8.87.0/24 | AS15412 | — |
| 2001:1a00::/32 | AS15412 | — |
| 203.79.32.0/20 | AS15412 | — |
| 203.79.37.0/24 | AS15412 | — |
| 203.79.39.0/24 | AS15412 | — |
| 43.248.216.0/22 | AS15412 | — |
| 45.125.188.0/22 | AS15412 | — |
| 62.216.128.0/19 | AS15412 | — |
| 80.77.0.0/20 | AS15412 | — |
| 80.81.64.0/19 | AS15412 | — |
| 80.81.86.0/24 | AS15412 | — |
| 85.95.24.0/22 | AS15412 | — |
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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 AS15412 represent?
AS15412 is an autonomous system number used to identify an independently operated network. The current page associates it with FLAG-AS - FLAG TELECOM UK LIMITED 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 AS15412 page?
They help explain the scale, interconnection depth, and route structure of AS15412. 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 AS15412?
The best next step is usually to return to a concrete IP landing page to see how a specific address maps into AS15412, 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.