Country
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ASN LANDING PAGE
AS3303
SWISSCOM Swisscom (Schweiz) AG
Last updated · Jul 20, 2026
Total prefixes
392
IPv4 prefixes
343
IPv6 prefixes
49
ASN summary
How to read the scale of AS3303
SWISSCOM Swisscom (Schweiz) AG currently reports 392 prefixes and 80 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?
SWISSCOM Swisscom (Schweiz) AG 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 AS3303 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
AS3303 ASN lookupAS3303 BGPAS3303 peersAS3303 prefixesAS3303 upstreamsSWISSCOM Swisscom (Schweiz) AG ASN
Upstreams
Detailed data for this ASN is not available right now.
Downstreams
AS6939
AS6939
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AS3356
AS3356
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AS174
AS174
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AS6453
AS6453
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AS12874
AS12874
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AS2914
AS2914
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AS12956
AS12956
—
AS3257
AS3257
—
AS16735
AS16735
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AS3491
AS3491
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AS23520
AS23520
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AS9498
AS9498
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AS9002
AS9002
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AS4637
AS4637
—
AS52468
AS52468
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AS11164
AS11164
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AS14840
AS14840
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AS6461
AS6461
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AS13786
AS13786
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AS3320
AS3320
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AS9121
AS9121
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AS4134
AS4134
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AS4230
AS4230
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AS201054
AS201054
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AS12389
AS12389
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AS6128
AS6128
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AS32098
AS32098
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AS18678
AS18678
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AS577
AS577
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AS37468
AS37468
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AS20485
AS20485
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AS1273
AS1273
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AS137409
AS137409
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AS17676
AS17676
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AS58453
AS58453
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AS6774
AS6774
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AS1257
AS1257
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AS34019
AS34019
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AS31133
AS31133
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AS852
AS852
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Peers
AS34019
AS34019
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AS8758
AS8758
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AS15623
AS15623
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AS51395
AS51395
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AS29222
AS29222
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AS15547
AS15547
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AS59414
AS59414
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AS6939
AS6939
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AS12637
AS12637
—
AS2914
AS2914
—
AS3320
AS3320
—
AS3356
AS3356
—
AS3257
AS3257
—
AS174
AS174
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AS25091
AS25091
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AS6453
AS6453
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AS48362
AS48362
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AS3491
AS3491
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AS3214
AS3214
—
AS20764
AS20764
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AS12956
AS12956
—
AS9002
AS9002
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AS50629
AS50629
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AS8280
AS8280
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AS205206
AS205206
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AS20080
AS20080
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AS3212
AS3212
—
AS34177
AS34177
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AS51088
AS51088
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AS45049
AS45049
—
AS15958
AS15958
—
AS577
AS577
—
AS34549
AS34549
—
AS14907
AS14907
—
AS49028
AS49028
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AS49709
AS49709
—
AS2027
AS2027
—
AS263152
AS263152
—
AS31027
AS31027
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AS13786
AS13786
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Prefix inventory
| Prefix | Name | Country |
|---|---|---|
| 109.164.128.0/17 | AS3303 | — |
| 109.164.128.0/18 | AS3303 | — |
| 109.164.192.0/18 | AS3303 | — |
| 136.238.12.0/23 | AS3303 | — |
| 136.238.14.0/24 | AS3303 | — |
| 136.238.2.0/23 | AS3303 | — |
| 138.187.128.0/18 | AS3303 | — |
| 138.188.0.0/16 | AS3303 | — |
| 138.190.0.0/16 | AS3303 | — |
| 138.223.0.0/16 | AS3303 | — |
| 138.81.0.0/18 | AS3303 | — |
| 138.81.128.0/18 | AS3303 | — |
| 144.2.112.0/20 | AS3303 | — |
| 144.2.64.0/18 | AS3303 | — |
| 144.2.64.0/19 | AS3303 | — |
| 144.2.64.0/20 | AS3303 | — |
| 144.2.80.0/20 | AS3303 | — |
| 144.2.96.0/19 | AS3303 | — |
| 144.2.96.0/20 | AS3303 | — |
| 146.4.0.0/16 | AS3303 | — |
| 146.4.0.0/17 | AS3303 | — |
| 146.4.128.0/17 | AS3303 | — |
| 149.133.4.0/23 | AS3303 | — |
| 152.89.80.0/22 | AS3303 | — |
| 156.135.24.0/22 | AS3303 | — |
| 156.135.8.0/22 | AS3303 | — |
| 160.63.200.0/21 | AS3303 | — |
| 160.63.24.0/22 | AS3303 | — |
| 160.63.80.0/21 | AS3303 | — |
| 161.78.0.0/20 | AS3303 | — |
| 162.21.0.0/16 | AS3303 | — |
| 164.128.128.0/18 | AS3303 | — |
| 164.128.192.0/18 | AS3303 | — |
| 164.128.32.0/19 | AS3303 | — |
| 164.128.64.0/19 | AS3303 | — |
| 170.17.128.0/17 | AS3303 | — |
| 170.17.128.0/18 | AS3303 | — |
| 170.17.192.0/18 | AS3303 | — |
| 170.205.64.0/18 | AS3303 | — |
| 170.205.64.0/19 | AS3303 | — |
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Related lookups and next steps
Frequently asked questions about this ASN page
What does AS3303 represent?
AS3303 is an autonomous system number. The current source associates it with SWISSCOM Swisscom (Schweiz) AG 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 AS3303 page?
They help explain the scale, interconnection depth, and route structure of AS3303. 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 AS3303?
Open a concrete IP page to check how the address maps into AS3303, 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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