Country
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ASN LANDING PAGE
AS21320
GEANT_IAS_VRF - GEANT Vereniging
Last updated · Apr 4, 2026
Total prefixes
2
IPv4 prefixes
1
IPv6 prefixes
1
ASN summary
How to read the scale of AS21320
GEANT_IAS_VRF - GEANT Vereniging currently shows 2 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 AS21320?
GEANT_IAS_VRF - GEANT Vereniging 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 AS21320 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
AS21320 ASN lookupAS21320 BGPAS21320 peersAS21320 prefixesAS21320 upstreamsGEANT_IAS_VRF - GEANT Vereniging ASN
Upstreams
Detailed data for this ASN is not available right now.
Downstreams
AS6939
AS6939
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AS6461
AS6461
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AS5408
AS5408
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AS9002
AS9002
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AS766
AS766
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AS2200
AS2200
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AS1930
AS1930
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AS3216
AS3216
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AS1853
AS1853
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AS1955
AS1955
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AS33891
AS33891
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AS8517
AS8517
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AS2614
AS2614
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AS31133
AS31133
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AS8220
AS8220
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AS8501
AS8501
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AS136968
AS136968
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AS2107
AS2107
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AS13092
AS13092
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AS2611
AS2611
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AS12687
AS12687
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AS30844
AS30844
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AS44224
AS44224
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AS3268
AS3268
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AS6802
AS6802
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AS378
AS378
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AS12046
AS12046
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AS4134
AS4134
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AS8966
AS8966
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AS20473
AS20473
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AS20965
AS20965
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AS8708
AS8708
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AS1213
AS1213
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AS5538
AS5538
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AS3303
AS3303
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AS199354
AS199354
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AS2607
AS2607
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AS3223
AS3223
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AS3208
AS3208
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AS40981
AS40981
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Peers
AS513
AS513
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AS2603
AS2603
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AS174
AS174
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AS3356
AS3356
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AS6939
AS6939
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AS9002
AS9002
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AS1853
AS1853
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AS6461
AS6461
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AS13030
AS13030
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AS58299
AS58299
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AS24961
AS24961
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AS8218
AS8218
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AS48185
AS48185
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AS199524
AS199524
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AS18106
AS18106
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AS14907
AS14907
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AS33891
AS33891
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AS6881
AS6881
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AS20932
AS20932
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AS8455
AS8455
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AS40994
AS40994
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AS3216
AS3216
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AS6424
AS6424
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AS58057
AS58057
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AS25369
AS25369
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AS1828
AS1828
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AS30844
AS30844
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AS3303
AS3303
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AS8426
AS8426
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AS36236
AS36236
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AS49544
AS49544
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AS8220
AS8220
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AS8501
AS8501
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AS9009
AS9009
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AS2200
AS2200
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AS5408
AS5408
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AS559
AS559
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AS8966
AS8966
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AS766
AS766
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AS2614
AS2614
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Prefix inventory
| Prefix | Name | Country |
|---|---|---|
| 2001:799::/32 | AS21320 | — |
| 83.97.88.0/21 | AS21320 | — |
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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 AS21320 represent?
AS21320 is an autonomous system number used to identify an independently operated network. The current page associates it with GEANT_IAS_VRF - GEANT Vereniging 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 AS21320 page?
They help explain the scale, interconnection depth, and route structure of AS21320. 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 AS21320?
The best next step is usually to return to a concrete IP landing page to see how a specific address maps into AS21320, 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.