Country
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ASN LANDING PAGE
AS21101
SISTEMIUNO-AS Sistemi Hardware&Software S.P.A.
Last updated · Jul 20, 2026
Total prefixes
20
IPv4 prefixes
20
IPv6 prefixes
0
ASN summary
How to read the scale of AS21101
SISTEMIUNO-AS Sistemi Hardware&Software S.P.A. currently reports 20 prefixes and 42 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?
SISTEMIUNO-AS Sistemi Hardware&Software 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 AS21101 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
AS21101 ASN lookupAS21101 BGPAS21101 peersAS21101 prefixesAS21101 upstreamsSISTEMIUNO-AS Sistemi Hardware&Software S.P.A. ASN
Upstreams
Detailed data for this ASN is not available right now.
Downstreams
Peers
AS41327
AS41327
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AS12779
AS12779
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AS6939
AS6939
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AS20764
AS20764
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AS6057
AS6057
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AS14840
AS14840
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AS34019
AS34019
—
AS34177
AS34177
—
AS8298
AS8298
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AS29075
AS29075
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AS3303
AS3303
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AS8218
AS8218
—
AS24961
AS24961
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AS35280
AS35280
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AS39351
AS39351
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AS1828
AS1828
—
AS2027
AS2027
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AS6758
AS6758
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AS15547
AS15547
—
AS15605
AS15605
—
AS16347
AS16347
—
AS20766
AS20766
—
AS34288
AS34288
—
AS35426
AS35426
—
AS35600
AS35600
—
AS37721
AS37721
—
AS44097
AS44097
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AS49434
AS49434
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AS49605
AS49605
—
AS49709
AS49709
—
AS50628
AS50628
—
AS50877
AS50877
—
AS51185
AS51185
—
AS56987
AS56987
—
AS57111
AS57111
—
AS59919
AS59919
—
AS198150
AS198150
—
AS198385
AS198385
—
AS209823
AS209823
—
AS212483
AS212483
—
Prefix inventory
| Prefix | Name | Country |
|---|---|---|
| 185.5.94.0/24 | AS21101 | — |
| 185.5.95.0/24 | AS21101 | — |
| 193.109.32.0/24 | AS21101 | — |
| 193.109.33.0/24 | AS21101 | — |
| 193.109.34.0/24 | AS21101 | — |
| 193.109.35.0/24 | AS21101 | — |
| 193.109.36.0/24 | AS21101 | — |
| 193.109.37.0/24 | AS21101 | — |
| 193.109.38.0/24 | AS21101 | — |
| 193.109.39.0/24 | AS21101 | — |
| 193.150.112.0/24 | AS21101 | — |
| 91.240.230.0/24 | AS21101 | — |
| 91.240.231.0/24 | AS21101 | — |
| 94.143.100.0/24 | AS21101 | — |
| 94.143.101.0/24 | AS21101 | — |
| 94.143.102.0/24 | AS21101 | — |
| 94.143.103.0/24 | AS21101 | — |
| 94.143.96.0/24 | AS21101 | — |
| 94.143.97.0/24 | AS21101 | — |
| 94.143.98.0/24 | AS21101 | — |
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Related lookups and next steps
Frequently asked questions about this ASN page
What does AS21101 represent?
AS21101 is an autonomous system number. The current source associates it with SISTEMIUNO-AS Sistemi Hardware&Software 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 AS21101 page?
They help explain the scale, interconnection depth, and route structure of AS21101. 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 AS21101?
Open a concrete IP page to check how the address maps into AS21101, then compare the prefix, source labels, and query time. Verify operator or service claims with the relevant registry or network operator.
Related topics
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Cloud Network and ASN Comparison
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