Country
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ASN LANDING PAGE
AS21056
ASN-WELCOMEITALIA Vianova S.p.A
Last updated · Jul 20, 2026
Total prefixes
43
IPv4 prefixes
42
IPv6 prefixes
1
ASN summary
How to read the scale of AS21056
ASN-WELCOMEITALIA Vianova S.p.A currently reports 43 prefixes and 44 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?
ASN-WELCOMEITALIA Vianova S.p.A 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 AS21056 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
AS21056 ASN lookupAS21056 BGPAS21056 peersAS21056 prefixesAS21056 upstreamsASN-WELCOMEITALIA Vianova S.p.A ASN
Upstreams
Detailed data for this ASN is not available right now.
Downstreams
Peers
AS6762
AS6762
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AS1299
AS1299
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AS3356
AS3356
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AS6939
AS6939
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AS34549
AS34549
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AS50304
AS50304
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AS34927
AS34927
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AS8966
AS8966
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AS29691
AS29691
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AS34177
AS34177
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AS39351
AS39351
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AS20764
AS20764
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AS8298
AS8298
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AS9002
AS9002
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AS37497
AS37497
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AS48362
AS48362
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AS6461
AS6461
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AS6057
AS6057
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AS25091
AS25091
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AS5392
AS5392
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AS20912
AS20912
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AS24482
AS24482
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AS34019
AS34019
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AS50763
AS50763
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AS1103
AS1103
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AS8758
AS8758
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AS14840
AS14840
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AS29075
AS29075
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AS33891
AS33891
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AS37721
AS37721
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AS559
AS559
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AS1828
AS1828
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AS3170
AS3170
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AS3212
AS3212
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AS3214
AS3214
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AS3741
AS3741
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AS5405
AS5405
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AS6424
AS6424
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AS8218
AS8218
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AS12779
AS12779
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Prefix inventory
| Prefix | Name | Country |
|---|---|---|
| 103.248.184.0/22 | AS21056 | — |
| 103.26.124.0/22 | AS21056 | — |
| 103.43.232.0/22 | AS21056 | — |
| 103.61.184.0/22 | AS21056 | — |
| 109.122.208.0/21 | AS21056 | — |
| 144.48.192.0/22 | AS21056 | — |
| 185.125.64.0/22 | AS21056 | — |
| 185.158.116.0/22 | AS21056 | — |
| 185.170.36.0/22 | AS21056 | — |
| 185.224.104.0/22 | AS21056 | — |
| 185.224.60.0/22 | AS21056 | — |
| 185.230.192.0/22 | AS21056 | — |
| 185.230.232.0/22 | AS21056 | — |
| 185.230.92.0/22 | AS21056 | — |
| 185.231.160.0/22 | AS21056 | — |
| 185.234.164.0/22 | AS21056 | — |
| 185.241.20.0/22 | AS21056 | — |
| 185.97.216.0/24 | AS21056 | — |
| 185.97.217.0/24 | AS21056 | — |
| 185.97.218.0/24 | AS21056 | — |
| 185.97.219.0/24 | AS21056 | — |
| 188.240.32.0/22 | AS21056 | — |
| 193.124.240.0/22 | AS21056 | — |
| 194.58.216.0/22 | AS21056 | — |
| 213.182.64.0/19 | AS21056 | — |
| 2a00:14f8::/32 | AS21056 | — |
| 45.143.36.0/22 | AS21056 | — |
| 45.151.12.0/22 | AS21056 | — |
| 45.151.64.0/22 | AS21056 | — |
| 45.84.140.0/22 | AS21056 | — |
| 46.44.192.0/18 | AS21056 | — |
| 78.152.96.0/19 | AS21056 | — |
| 79.108.136.0/21 | AS21056 | — |
| 79.135.32.0/19 | AS21056 | — |
| 80.93.128.0/20 | AS21056 | — |
| 80.93.143.0/24 | AS21056 | — |
| 83.137.56.0/21 | AS21056 | — |
| 87.247.232.0/21 | AS21056 | — |
| 87.247.239.0/24 | AS21056 | — |
| 91.143.192.0/20 | AS21056 | — |
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Related lookups and next steps
Frequently asked questions about this ASN page
What does AS21056 represent?
AS21056 is an autonomous system number. The current source associates it with ASN-WELCOMEITALIA Vianova S.p.A 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 AS21056 page?
They help explain the scale, interconnection depth, and route structure of AS21056. 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 AS21056?
Open a concrete IP page to check how the address maps into AS21056, 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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