Country
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ASN LANDING PAGE
AS3300
BT British Telecommunications Limited
Last updated · Jul 20, 2026
Total prefixes
152
IPv4 prefixes
123
IPv6 prefixes
29
ASN summary
How to read the scale of AS3300
BT British Telecommunications Limited currently reports 152 prefixes and 60 upstream, downstream, or peer relationships. These counts describe the current dataset; they do not by themselves prove network quality, reach, or service use.
What can an ASN page answer?
An ASN page shows the public organization label, country or region, BGP prefixes, and available peer and upstream relationships. It adds network context but cannot confirm a website host, physical facility, security status, or service quality.
How should you read the organization and region fields?
BT British Telecommunications Limited is currently associated with an unknown region. These values come from public network sources and are useful lookup clues; an organization label, registration region, and actual service location may differ.
How should you verify the AS3300 result?
The page shows ASN data returned by the current upstream query; interpret it with the update time. Open representative IP pages from the same network and compare prefixes, source labels, and query times. Verify operator or service claims with the relevant registry or network operator.
How to verify this ASN result
AS3300 ASN lookupAS3300 BGPAS3300 peersAS3300 prefixesAS3300 upstreamsBT British Telecommunications Limited ASN
Upstreams
Detailed data for this ASN is not available right now.
Downstreams
Peers
AS1299
AS1299
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AS2914
AS2914
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AS4637
AS4637
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AS4657
AS4657
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AS3491
AS3491
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AS6939
AS6939
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AS9002
AS9002
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AS6762
AS6762
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AS30844
AS30844
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AS3303
AS3303
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AS6461
AS6461
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AS33891
AS33891
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AS8220
AS8220
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AS2497
AS2497
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AS37468
AS37468
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AS14840
AS14840
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AS18106
AS18106
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AS199524
AS199524
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AS1828
AS1828
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AS49544
AS49544
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AS35280
AS35280
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AS14907
AS14907
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AS36236
AS36236
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AS4230
AS4230
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AS1403
AS1403
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AS19151
AS19151
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AS22652
AS22652
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AS52320
AS52320
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AS55720
AS55720
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AS9304
AS9304
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AS45489
AS45489
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AS2518
AS2518
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AS4635
AS4635
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AS7713
AS7713
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AS24482
AS24482
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AS31713
AS31713
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AS6057
AS6057
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AS6830
AS6830
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AS137409
AS137409
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AS917
AS917
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Prefix inventory
| Prefix | Name | Country |
|---|---|---|
| 136.238.168.0/24 | AS3300 | — |
| 136.238.185.0/24 | AS3300 | — |
| 136.238.187.0/24 | AS3300 | — |
| 136.238.229.0/24 | AS3300 | — |
| 136.238.232.0/24 | AS3300 | — |
| 136.238.238.0/24 | AS3300 | — |
| 136.238.239.0/24 | AS3300 | — |
| 136.238.240.0/24 | AS3300 | — |
| 136.238.241.0/24 | AS3300 | — |
| 136.238.243.0/24 | AS3300 | — |
| 185.249.5.0/24 | AS3300 | — |
| 185.249.6.0/24 | AS3300 | — |
| 192.157.130.0/23 | AS3300 | — |
| 192.157.132.0/22 | AS3300 | — |
| 192.157.136.0/21 | AS3300 | — |
| 192.157.144.0/20 | AS3300 | — |
| 192.157.160.0/23 | AS3300 | — |
| 192.237.64.0/18 | AS3300 | — |
| 192.92.18.0/24 | AS3300 | — |
| 192.92.19.0/24 | AS3300 | — |
| 192.92.20.0/22 | AS3300 | — |
| 192.92.24.0/21 | AS3300 | — |
| 192.92.32.0/19 | AS3300 | — |
| 192.92.80.0/23 | AS3300 | — |
| 192.92.82.0/24 | AS3300 | — |
| 194.33.52.0/24 | AS3300 | — |
| 195.206.69.0/24 | AS3300 | — |
| 195.206.70.0/24 | AS3300 | — |
| 198.137.75.0/24 | AS3300 | — |
| 198.178.237.0/24 | AS3300 | — |
| 198.178.239.0/24 | AS3300 | — |
| 198.207.127.0/24 | AS3300 | — |
| 198.207.64.0/18 | AS3300 | — |
| 198.207.64.0/22 | AS3300 | — |
| 198.207.67.0/24 | AS3300 | — |
| 198.207.68.0/22 | AS3300 | — |
| 198.207.72.0/22 | AS3300 | — |
| 198.207.74.0/24 | AS3300 | — |
| 198.207.75.0/24 | AS3300 | — |
| 198.207.76.0/22 | AS3300 | — |
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Related lookups and next steps
Frequently asked questions about this ASN page
What does AS3300 represent?
AS3300 is an autonomous system number. The current source associates it with BT British Telecommunications Limited and the region field an unknown region; those values add network context but do not prove a specific service, physical location, or quality level.
What are peers, upstreams, and prefixes useful for on the AS3300 page?
They help explain the scale, interconnection depth, and route structure of AS3300. 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 AS3300?
Open a concrete IP page to check how the address maps into AS3300, then compare the prefix, source labels, and query time. Verify operator or service claims with the relevant registry or network operator.
Related topics
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