Country
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ASN LANDING PAGE
AS39603
P4NET - P4 Sp. z o.o.
Last updated · Apr 4, 2026
Total prefixes
20
IPv4 prefixes
19
IPv6 prefixes
1
ASN summary
How to read the scale of AS39603
P4NET - P4 Sp. z o.o. currently shows 20 prefixes and 27 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 AS39603?
P4NET - P4 Sp. z o.o. 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 AS39603 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
AS39603 ASN lookupAS39603 BGPAS39603 peersAS39603 prefixesAS39603 upstreamsP4NET - P4 Sp. z o.o. ASN
Upstreams
Detailed data for this ASN is not available right now.
Downstreams
Peers
AS1299
AS1299
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AS174
AS174
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AS6939
AS6939
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AS3356
AS3356
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AS29314
AS29314
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AS24115
AS24115
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AS29632
AS29632
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AS137409
AS137409
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AS14840
AS14840
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AS24482
AS24482
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AS35320
AS35320
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AS36236
AS36236
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AS49544
AS49544
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AS198150
AS198150
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AS212483
AS212483
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AS9009
AS9009
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AS13194
AS13194
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AS24748
AS24748
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AS39120
AS39120
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AS60068
AS60068
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AS201054
AS201054
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AS263444
AS263444
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AS6204
AS6204
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AS22356
AS22356
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AS28917
AS28917
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Prefix inventory
| Prefix | Name | Country |
|---|---|---|
| 109.243.0.0/16 | AS39603 | — |
| 109.243.128.0/17 | AS39603 | — |
| 109.243.192.0/18 | AS39603 | — |
| 164.126.0.0/15 | AS39603 | — |
| 2a00:1981::/32 | AS39603 | — |
| 31.174.0.0/15 | AS39603 | — |
| 46.112.0.0/16 | AS39603 | — |
| 46.113.0.0/16 | AS39603 | — |
| 5.173.0.0/17 | AS39603 | — |
| 5.173.128.0/18 | AS39603 | — |
| 5.173.192.0/19 | AS39603 | — |
| 89.108.192.0/18 | AS39603 | — |
| 89.108.200.0/21 | AS39603 | — |
| 89.108.208.0/21 | AS39603 | — |
| 94.254.128.0/17 | AS39603 | — |
| 94.254.128.0/20 | AS39603 | — |
| 94.254.144.0/20 | AS39603 | — |
| 94.254.160.0/19 | AS39603 | — |
| 94.254.192.0/19 | AS39603 | — |
| 94.254.224.0/20 | AS39603 | — |
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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 AS39603 represent?
AS39603 is an autonomous system number used to identify an independently operated network. The current page associates it with P4NET - P4 Sp. z o.o. 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 AS39603 page?
They help explain the scale, interconnection depth, and route structure of AS39603. 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 AS39603?
The best next step is usually to return to a concrete IP landing page to see how a specific address maps into AS39603, 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.