Country
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ASN LANDING PAGE
AS42763
CZAJEN FPUH Czajen Krzysztof Czaja
Last updated · Jul 20, 2026
Total prefixes
17
IPv4 prefixes
17
IPv6 prefixes
0
ASN summary
How to read the scale of AS42763
CZAJEN FPUH Czajen Krzysztof Czaja currently reports 17 prefixes and 11 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?
CZAJEN FPUH Czajen Krzysztof Czaja 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 AS42763 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
AS42763 ASN lookupAS42763 BGPAS42763 peersAS42763 prefixesAS42763 upstreamsCZAJEN FPUH Czajen Krzysztof Czaja ASN
Upstreams
Detailed data for this ASN is not available right now.
Downstreams
Peers
Prefix inventory
| Prefix | Name | Country |
|---|---|---|
| 193.33.174.0/23 | AS42763 | — |
| 193.33.174.0/24 | AS42763 | — |
| 193.33.175.0/24 | AS42763 | — |
| 77.87.0.0/21 | AS42763 | — |
| 77.87.0.0/24 | AS42763 | — |
| 77.87.1.0/24 | AS42763 | — |
| 77.87.2.0/24 | AS42763 | — |
| 77.87.3.0/24 | AS42763 | — |
| 77.87.4.0/24 | AS42763 | — |
| 77.87.5.0/24 | AS42763 | — |
| 77.87.6.0/24 | AS42763 | — |
| 77.87.7.0/24 | AS42763 | — |
| 91.193.120.0/22 | AS42763 | — |
| 91.193.120.0/24 | AS42763 | — |
| 91.193.121.0/24 | AS42763 | — |
| 91.193.122.0/24 | AS42763 | — |
| 91.193.123.0/24 | AS42763 | — |
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Related lookups and next steps
Frequently asked questions about this ASN page
What does AS42763 represent?
AS42763 is an autonomous system number. The current source associates it with CZAJEN FPUH Czajen Krzysztof Czaja 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 AS42763 page?
They help explain the scale, interconnection depth, and route structure of AS42763. 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 AS42763?
Open a concrete IP page to check how the address maps into AS42763, then compare the prefix, source labels, and query time. Verify operator or service claims with the relevant registry or network operator.
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