Country
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ASN LANDING PAGE
AS51155
TBTELECOM Citylink Telecom Sp. z o.o.
Last updated · Jul 20, 2026
Total prefixes
4
IPv4 prefixes
3
IPv6 prefixes
1
ASN summary
How to read the scale of AS51155
TBTELECOM Citylink Telecom Sp. z o.o. currently reports 4 prefixes and 26 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?
TBTELECOM Citylink Telecom Sp. z o.o. 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 AS51155 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
AS51155 ASN lookupAS51155 BGPAS51155 peersAS51155 prefixesAS51155 upstreamsTBTELECOM Citylink Telecom Sp. z o.o. ASN
Upstreams
Detailed data for this ASN is not available right now.
Downstreams
Peers
AS50263
AS50263
—
AS3356
AS3356
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AS6939
AS6939
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AS9002
AS9002
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AS137409
AS137409
—
AS8218
AS8218
—
AS24482
AS24482
—
AS14840
AS14840
—
AS42295
AS42295
—
AS50629
AS50629
—
AS36236
AS36236
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AS49544
AS49544
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AS201054
AS201054
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AS9009
AS9009
—
AS6204
AS6204
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AS34927
AS34927
—
AS49434
AS49434
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AS198150
AS198150
—
AS209823
AS209823
—
AS212483
AS212483
—
AS263444
AS263444
—
AS35320
AS35320
—
Prefix inventory
| Prefix | Name | Country |
|---|---|---|
| 178.19.176.0/20 | AS51155 | — |
| 2a02:26e8::/32 | AS51155 | — |
| 46.227.36.0/23 | AS51155 | — |
| 46.227.38.0/23 | AS51155 | — |
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Related lookups and next steps
Frequently asked questions about this ASN page
What does AS51155 represent?
AS51155 is an autonomous system number. The current source associates it with TBTELECOM Citylink Telecom Sp. z o.o. 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 AS51155 page?
They help explain the scale, interconnection depth, and route structure of AS51155. 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 AS51155?
Open a concrete IP page to check how the address maps into AS51155, 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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