Country
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ASN LANDING PAGE
AS35228
O2BROADBAND - Telefonica UK Limited
Last updated · Apr 4, 2026
Total prefixes
112
IPv4 prefixes
100
IPv6 prefixes
12
ASN summary
How to read the scale of AS35228
O2BROADBAND - Telefonica UK Limited currently shows 112 prefixes and 44 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 AS35228?
O2BROADBAND - Telefonica 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 AS35228 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
AS35228 ASN lookupAS35228 BGPAS35228 peersAS35228 prefixesAS35228 upstreamsO2BROADBAND - Telefonica UK Limited ASN
Upstreams
Detailed data for this ASN is not available right now.
Downstreams
Peers
AS12956
AS12956
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AS5089
AS5089
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AS3257
AS3257
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AS6939
AS6939
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AS9002
AS9002
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AS13030
AS13030
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AS25091
AS25091
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AS35280
AS35280
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AS5405
AS5405
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AS34549
AS34549
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AS20764
AS20764
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AS29075
AS29075
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AS3214
AS3214
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AS50304
AS50304
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AS8220
AS8220
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AS37468
AS37468
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AS20562
AS20562
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AS4455
AS4455
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AS34177
AS34177
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AS34927
AS34927
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AS39351
AS39351
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AS41327
AS41327
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AS48362
AS48362
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AS52320
AS52320
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AS37100
AS37100
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AS1267
AS1267
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AS14840
AS14840
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AS33891
AS33891
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AS1031
AS1031
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AS1828
AS1828
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AS3170
AS3170
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AS3216
AS3216
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AS3741
AS3741
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AS5713
AS5713
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AS6204
AS6204
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AS6424
AS6424
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AS6894
AS6894
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AS7195
AS7195
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AS7575
AS7575
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AS8426
AS8426
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Prefix inventory
| Prefix | Name | Country |
|---|---|---|
| 158.230.0.0/17 | AS35228 | — |
| 158.230.200.0/22 | AS35228 | — |
| 158.230.201.0/24 | AS35228 | — |
| 185.132.84.0/24 | AS35228 | — |
| 185.79.104.0/23 | AS35228 | — |
| 185.79.106.0/23 | AS35228 | — |
| 2a03:dd00:2200::/40 | AS35228 | — |
| 2a03:dd00:3000::/44 | AS35228 | — |
| 2a03:dd00:3002::/48 | AS35228 | — |
| 2a03:dd00:300e::/48 | AS35228 | — |
| 2a03:dd00:3044::/47 | AS35228 | — |
| 2a03:dd00:810::/46 | AS35228 | — |
| 2a03:dd00:821::/48 | AS35228 | — |
| 2a03:dd00:822::/48 | AS35228 | — |
| 2a03:dd00:823::/48 | AS35228 | — |
| 2a03:dd00:824::/48 | AS35228 | — |
| 2a03:dd00:825::/48 | AS35228 | — |
| 2a03:dd00::/32 | AS35228 | — |
| 46.233.64.0/18 | AS35228 | — |
| 46.233.78.0/24 | AS35228 | — |
| 46.233.79.0/24 | AS35228 | — |
| 46.233.82.0/23 | AS35228 | — |
| 46.233.82.0/24 | AS35228 | — |
| 46.233.83.0/24 | AS35228 | — |
| 46.233.88.0/23 | AS35228 | — |
| 46.233.88.0/24 | AS35228 | — |
| 46.233.89.0/24 | AS35228 | — |
| 46.233.91.0/24 | AS35228 | — |
| 46.233.94.0/24 | AS35228 | — |
| 46.233.96.0/21 | AS35228 | — |
| 82.132.128.0/17 | AS35228 | — |
| 82.132.138.0/23 | AS35228 | — |
| 82.132.160.0/23 | AS35228 | — |
| 82.132.164.0/23 | AS35228 | — |
| 82.132.166.0/23 | AS35228 | — |
| 82.132.168.0/23 | AS35228 | — |
| 82.132.170.0/23 | AS35228 | — |
| 82.132.172.0/23 | AS35228 | — |
| 82.132.174.0/23 | AS35228 | — |
| 82.132.176.0/23 | AS35228 | — |
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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 AS35228 represent?
AS35228 is an autonomous system number used to identify an independently operated network. The current page associates it with O2BROADBAND - Telefonica 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 AS35228 page?
They help explain the scale, interconnection depth, and route structure of AS35228. 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 AS35228?
The best next step is usually to return to a concrete IP landing page to see how a specific address maps into AS35228, 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.