Country
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ASN LANDING PAGE
AS57043
HOSTKEY-AS - HOSTKEY B.V.
Last updated · Apr 4, 2026
Total prefixes
517
IPv4 prefixes
510
IPv6 prefixes
7
ASN summary
How to read the scale of AS57043
HOSTKEY-AS - HOSTKEY B.V. currently shows 517 prefixes and 54 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 AS57043?
HOSTKEY-AS - HOSTKEY B.V. 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 AS57043 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
AS57043 ASN lookupAS57043 BGPAS57043 peersAS57043 prefixesAS57043 upstreamsHOSTKEY-AS - HOSTKEY B.V. ASN
Upstreams
Detailed data for this ASN is not available right now.
Downstreams
Peers
AS6939
AS6939
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AS174
AS174
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AS3257
AS3257
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AS9002
AS9002
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AS59692
AS59692
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AS3356
AS3356
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AS6762
AS6762
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AS6677
AS6677
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AS49434
AS49434
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AS12735
AS12735
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AS31500
AS31500
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AS5405
AS5405
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AS57724
AS57724
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AS16302
AS16302
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AS25091
AS25091
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AS50629
AS50629
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AS20764
AS20764
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AS50304
AS50304
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AS8218
AS8218
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AS8298
AS8298
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AS14907
AS14907
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AS58057
AS58057
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AS137409
AS137409
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AS33891
AS33891
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AS34019
AS34019
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AS3170
AS3170
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AS24482
AS24482
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AS39351
AS39351
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AS208972
AS208972
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AS205112
AS205112
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AS47692
AS47692
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AS29632
AS29632
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AS44901
AS44901
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AS8966
AS8966
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AS25198
AS25198
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AS34927
AS34927
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AS42295
AS42295
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AS3214
AS3214
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AS15958
AS15958
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AS58299
AS58299
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Prefix inventory
| Prefix | Name | Country |
|---|---|---|
| 103.27.156.0/24 | AS57043 | — |
| 103.7.54.0/24 | AS57043 | — |
| 103.7.55.0/24 | AS57043 | — |
| 103.73.35.0/24 | AS57043 | — |
| 104.222.183.0/24 | AS57043 | — |
| 104.238.6.0/24 | AS57043 | — |
| 104.239.12.0/24 | AS57043 | — |
| 104.239.127.0/24 | AS57043 | — |
| 104.249.22.0/24 | AS57043 | — |
| 104.253.187.0/24 | AS57043 | — |
| 104.253.216.0/24 | AS57043 | — |
| 107.181.147.0/24 | AS57043 | — |
| 107.181.151.0/24 | AS57043 | — |
| 132.243.194.0/24 | AS57043 | — |
| 132.243.195.0/24 | AS57043 | — |
| 132.243.198.0/24 | AS57043 | — |
| 132.243.199.0/24 | AS57043 | — |
| 132.243.200.0/24 | AS57043 | — |
| 132.243.201.0/24 | AS57043 | — |
| 132.243.205.0/24 | AS57043 | — |
| 138.249.117.0/24 | AS57043 | — |
| 138.249.141.0/24 | AS57043 | — |
| 138.249.149.0/24 | AS57043 | — |
| 141.105.143.0/24 | AS57043 | — |
| 141.11.0.0/24 | AS57043 | — |
| 141.98.4.0/24 | AS57043 | — |
| 142.111.162.0/24 | AS57043 | — |
| 142.249.78.0/24 | AS57043 | — |
| 144.56.44.0/24 | AS57043 | — |
| 146.0.72.0/21 | AS57043 | — |
| 146.0.72.0/24 | AS57043 | — |
| 146.0.73.0/24 | AS57043 | — |
| 146.0.74.0/24 | AS57043 | — |
| 146.0.75.0/24 | AS57043 | — |
| 146.0.76.0/24 | AS57043 | — |
| 146.0.77.0/24 | AS57043 | — |
| 146.0.78.0/24 | AS57043 | — |
| 146.0.79.0/24 | AS57043 | — |
| 150.251.145.0/24 | AS57043 | — |
| 151.241.109.0/24 | AS57043 | — |
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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 AS57043 represent?
AS57043 is an autonomous system number used to identify an independently operated network. The current page associates it with HOSTKEY-AS - HOSTKEY B.V. 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 AS57043 page?
They help explain the scale, interconnection depth, and route structure of AS57043. 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 AS57043?
The best next step is usually to return to a concrete IP landing page to see how a specific address maps into AS57043, 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.