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AS3303 SWISSCOM Swisscom (Schweiz) AG

Everything the routing table and the registries say about AS3303: who holds it, which registry issued it, and which address blocks it advertises.

Consumer and business ISPsAS3303

342 IPv4 and 49 IPv6 prefixes announced.

Registry facts

Refreshed daily
AS number
AS3303
Holder
SWISSCOM Swisscom (Schweiz) AG
Country
Not published
Regional registry
RIPE — RIPE Network Coordination Centre
Registry block
3154-3353 (IANA 16-bit Autonomous System (AS) Numbers Registry)
Announced today
Yes
IPv4 prefixes
342
IPv6 prefixes
49
Observed at
2026-09-05T16:00:00

Data: RIPEstat. Prefix and holder data comes from the RIPEstat Data API and is cached for 24 hours. The regional registry is derived from the IANA AS number allocation table. Authoritative registry records are served by RIPE RDAP.

Announced prefixes

342 IPv4 · 49 IPv6
  • 151 IPv4 shown
  • 49 IPv6 shown
  • 46.14.0.0/16
  • 46.14.0.0/17
  • 46.14.128.0/17
  • 46.245.144.0/21
  • 62.202.0.0/15
  • 62.202.0.0/16
  • 62.202.0.0/17
  • 62.202.128.0/17
  • 62.203.0.0/16
  • 62.203.0.0/17
  • 62.203.128.0/17
  • 78.110.128.0/20
  • 80.75.192.0/20
  • 80.94.144.0/20
  • 81.62.0.0/15
  • 81.62.0.0/16
  • 81.63.0.0/16
  • 83.76.0.0/14
  • 83.76.0.0/15
  • 83.76.0.0/16
  • 83.77.0.0/16
  • 83.78.0.0/15
  • 83.78.0.0/16
  • 83.79.0.0/16
  • 83.173.192.0/18
  • 83.173.192.0/19
  • 83.173.224.0/19
  • 84.253.0.0/18
  • 84.253.0.0/19
  • 84.253.32.0/19
  • 85.0.0.0/13
  • 85.0.0.0/14
  • 85.0.0.0/15
  • 85.2.0.0/15
  • 85.4.0.0/14
  • 85.4.0.0/15
  • 85.6.0.0/15
  • 91.198.58.0/24
  • 91.198.72.0/24
  • 91.206.11.0/24
  • 91.209.158.0/24
  • 91.212.91.0/24
  • 91.212.117.0/24
  • 91.216.229.0/24
  • 91.220.99.0/24
  • 91.223.121.0/24
  • 91.223.154.0/24
  • 91.226.202.0/24
  • 91.230.249.0/24
  • 92.104.0.0/14
  • 92.104.0.0/15
  • 92.104.0.0/16
  • 92.105.0.0/16
  • 92.106.0.0/15
  • 92.106.0.0/16
  • 92.107.0.0/16
  • 95.152.64.0/18
  • 95.152.64.0/19
  • 95.152.96.0/19
  • 109.164.128.0/17
  • 109.164.128.0/18
  • 109.164.192.0/18
  • 136.238.2.0/23
  • 136.238.12.0/23
  • 136.238.14.0/24
  • 138.81.0.0/18
  • 138.81.128.0/18
  • 138.187.128.0/18
  • 138.188.0.0/16
  • 138.190.0.0/16
  • 138.223.0.0/16
  • 144.2.64.0/18
  • 144.2.64.0/19
  • 144.2.64.0/20
  • 144.2.80.0/20
  • 144.2.96.0/19
  • 144.2.96.0/20
  • 144.2.112.0/20
  • 146.4.0.0/16
  • 146.4.0.0/17
  • 146.4.128.0/17
  • 149.133.4.0/23
  • 152.89.80.0/22
  • 156.135.8.0/22
  • 156.135.24.0/22
  • 160.63.24.0/22
  • 160.63.80.0/21
  • 160.63.200.0/21
  • 161.78.0.0/20
  • 162.21.0.0/16
  • 164.128.32.0/19
  • 164.128.64.0/19
  • 164.128.128.0/18
  • 164.128.192.0/18
  • 170.17.128.0/17
  • 170.17.128.0/18
  • 170.17.192.0/18
  • 170.205.64.0/18
  • 170.205.64.0/19
  • 170.205.96.0/19
  • 176.127.0.0/16
  • 176.127.0.0/17
  • 176.127.0.0/18
  • 176.127.64.0/18
  • 176.127.128.0/17
  • 176.127.128.0/18
  • 176.127.192.0/18
  • 178.174.0.0/18
  • 178.174.0.0/19
  • 178.174.32.0/19
  • 178.174.64.0/19
  • 178.174.64.0/20
  • 178.174.80.0/20
  • 178.192.0.0/13
  • 178.192.0.0/14
  • 178.192.0.0/15
  • 178.194.0.0/15
  • 178.196.0.0/14
  • 178.196.0.0/15
  • 178.198.0.0/15
  • 178.238.160.0/20
  • 178.238.160.0/21
  • 178.238.168.0/21
  • 184.86.80.0/22
  • 185.31.180.0/22
  • 185.39.92.0/22
  • 185.49.152.0/22
  • 185.54.172.0/22
  • 185.58.1.0/24
  • 185.105.132.0/22
  • 185.105.132.0/23
  • 185.105.134.0/23
  • 185.105.144.0/22
  • 185.105.144.0/23
  • 185.105.146.0/23
  • 185.119.176.0/22
  • 185.119.176.0/23
  • 185.119.176.0/24
  • 185.119.177.0/24
  • 185.119.178.0/23
  • 185.119.178.0/24
  • 185.119.179.0/24
  • 185.176.236.0/22
  • 185.210.0.0/23
  • 185.210.2.0/24
  • 185.210.3.0/24
  • 188.60.0.0/14
  • 188.60.0.0/15
  • 188.60.0.0/16
  • 188.61.0.0/16
  • 188.62.0.0/15
  • 2001:4d98::/33
  • 2001:4d98::/34
  • 2001:4d98:4000::/34
  • 2001:678:d98::/48
  • 2001:678:d9c::/48
  • 2001:678:e0::/48
  • 2001:67c:1984::/48
  • 2001:67c:273c::/48
  • 2001:67c:2950::/48
  • 2001:67c:2f70::/48
  • 2001:67c:420::/48
  • 2001:67c:4f0::/48
  • 2001:67c:5dc::/48
  • 2001:67c:ff0::/48
  • 2001:918::/32
  • 2001:918:ff44::/48
  • 2001:918:ff64::/48
  • 2001:918:ffa9::/48
  • 2001:918:ffaa::/48
  • 2001:918:ffac::/48
  • 2001:918:ffad::/48
  • 2001:918:ffcb::/48
  • 2001:918:fff9::/48
  • 2001:918:fffa::/48
  • 2001:91a::/32
  • 2001:91f::/32
  • 2a01:8b00::/32
  • 2a01:a2e0::/32
  • 2a02:1200::/27
  • 2a02:1200::/28
  • 2a02:1200::/29
  • 2a02:1208::/29
  • 2a02:1210::/28
  • 2a02:1210::/29
  • 2a02:1218::/29
  • 2a02:21b0::/29
  • 2a02:21b0::/30
  • 2a02:21b0::/31
  • 2a02:21b2::/31
  • 2a02:21b4::/30
  • 2a02:21b4::/31
  • 2a02:21b6::/31
  • 2a02:4620::/32
  • 2a02:a90::/32
  • 2a06:d581:3000::/36
  • 2a07:2902:400::/38
  • 2a0d:ed80:101::/48
  • 2a10:a1c0::/48
  • 2a10:a1c0:1002::/48

A prefix here is a block this AS was seen originating in BGP, not a block it is guaranteed to own. Announcement and allocation are different facts, and they disagree more often than people expect.

Registry record

ripe
FieldValue
aut-num3303
as-nameSWISSCOM
descrSwisscom (Switzerland) Ltd
descrIP-Plus Internet Backbone
descr======================================================================
descrAbuse issues abuse@ip-plus.net
descrOperational issues noc@ip-plus.net
descrPeering requests IP-Plus.Peering@swisscom.com
descrOther info https://as3303.peeringdb.com
descr======================================================================
orgORG-SI1-RIPE
admin-cSIE3-RIPE
tech-cSIE3-RIPE
importfrom AS3320 action pref=700; accept ANY
exportto AS3320 announce AS3303:AS-SWCMGLOBAL
importfrom AS174 action pref=700; accept ANY
exportto AS174 announce AS3303:AS-SWCMGLOBAL
importfrom AS42 action pref=700; accept AS-PCH
importfrom AS137 action pref=700; accept AS-GARR
importfrom AS237 action pref=700; accept AS-MICHNET
importfrom AS290 action pref=700; accept AS290
importfrom AS513 action pref=700; accept AS-CERNEXT
importfrom AS553 action pref=700; accept AS-BELWUE
importfrom AS559 action pref=700; accept AS559:AS-SWITCH

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