Country
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ASN LANDING PAGE
AS15958
CETIN_DOO_AS - CETIN Ltd. Belgrade
Last updated · Apr 4, 2026
Total prefixes
13
IPv4 prefixes
12
IPv6 prefixes
1
ASN summary
How to read the scale of AS15958
CETIN_DOO_AS - CETIN Ltd. Belgrade currently shows 13 prefixes and 80 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 AS15958?
CETIN_DOO_AS - CETIN Ltd. Belgrade 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 AS15958 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
AS15958 ASN lookupAS15958 BGPAS15958 peersAS15958 prefixesAS15958 upstreamsCETIN_DOO_AS - CETIN Ltd. Belgrade ASN
Upstreams
Detailed data for this ASN is not available right now.
Downstreams
AS1299
AS1299
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AS6939
AS6939
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AS3356
AS3356
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AS174
AS174
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AS9498
AS9498
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AS7195
AS7195
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AS15397
AS15397
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AS52320
AS52320
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AS14840
AS14840
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AS23764
AS23764
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AS44306
AS44306
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AS13335
AS13335
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AS264409
AS264409
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AS137409
AS137409
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AS50263
AS50263
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AS32787
AS32787
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AS58453
AS58453
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AS5405
AS5405
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AS203877
AS203877
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AS33891
AS33891
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AS29049
AS29049
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AS3303
AS3303
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AS213306
AS213306
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AS20485
AS20485
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AS31133
AS31133
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AS9318
AS9318
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AS198171
AS198171
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AS6663
AS6663
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AS7713
AS7713
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AS43727
AS43727
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AS1828
AS1828
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AS20804
AS20804
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AS263444
AS263444
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AS29119
AS29119
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AS28283
AS28283
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AS7049
AS7049
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AS37100
AS37100
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AS20764
AS20764
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AS35598
AS35598
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AS197423
AS197423
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Peers
AS15397
AS15397
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AS1299
AS1299
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AS3356
AS3356
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AS174
AS174
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AS44306
AS44306
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AS13004
AS13004
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AS6939
AS6939
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AS8455
AS8455
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AS8298
AS8298
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AS34549
AS34549
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AS34019
AS34019
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AS20764
AS20764
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AS51185
AS51185
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AS1103
AS1103
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AS12859
AS12859
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AS8758
AS8758
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AS25091
AS25091
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AS9125
AS9125
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AS34927
AS34927
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AS50673
AS50673
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AS24482
AS24482
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AS50763
AS50763
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AS12779
AS12779
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AS41327
AS41327
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AS3214
AS3214
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AS6057
AS6057
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AS34177
AS34177
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AS29691
AS29691
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AS37468
AS37468
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AS29075
AS29075
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AS3399
AS3399
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AS137409
AS137409
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AS39351
AS39351
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AS48362
AS48362
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AS35625
AS35625
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AS49434
AS49434
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AS5405
AS5405
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AS14907
AS14907
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AS42541
AS42541
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AS37721
AS37721
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Prefix inventory
| Prefix | Name | Country |
|---|---|---|
| 109.106.224.0/20 | AS15958 | — |
| 109.245.0.0/16 | AS15958 | — |
| 109.245.128.0/21 | AS15958 | — |
| 109.245.144.0/21 | AS15958 | — |
| 109.245.160.0/21 | AS15958 | — |
| 109.245.168.0/21 | AS15958 | — |
| 217.65.192.0/20 | AS15958 | — |
| 217.65.196.0/22 | AS15958 | — |
| 217.65.200.0/21 | AS15958 | — |
| 217.65.201.0/24 | AS15958 | — |
| 217.65.202.0/23 | AS15958 | — |
| 217.65.204.0/22 | AS15958 | — |
| 2a01:ac80::/32 | AS15958 | — |
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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 AS15958 represent?
AS15958 is an autonomous system number used to identify an independently operated network. The current page associates it with CETIN_DOO_AS - CETIN Ltd. Belgrade 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 AS15958 page?
They help explain the scale, interconnection depth, and route structure of AS15958. 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 AS15958?
The best next step is usually to return to a concrete IP landing page to see how a specific address maps into AS15958, 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.