AS3303 SWISSCOM Swisscom (Schweiz) AG
🇨🇭Org handle: ORG-SI1-RIPE
Swisscom (Switzerland) Ltd
RIPE NCCallocatedASPA Published
Announced Prefixes (BGP)
402total
353 IPv449 IPv6
IPv4 Addresses
Allocated (RIR)4.3M
Announced (BGP)8.2M
IPv6 Addresses
Allocated (RIR)6.1×10³⁰
Announced (BGP)1×10³¹
Prefix Limit (IPv4)
5,000
Prefix Limit (IPv6)
200
Country
🇨🇭 CHRIR
RIPE NCCStatus
allocated
Allocated
1994-10-28
Routing hygiene
Score 12/100 · Low riskRPKI ROA coverage
88.3%
2 prefixes RPKI invalid
IRR route objects
97%
3 prefixes registered for another origin
Hijack signals
1
1 announced against others' ROAs, 0 own announced by others
Upstreams
14
diversity 82/100
- Announces 1 prefix that RPKI assigns to another network (possible hijack or misconfiguration)
- 12% of announced prefixes (47 of 402) have no valid ROA, 2 of them RPKI invalid
Based on 402 announced prefixes, updated daily (2026-10-24). How the score works · RPKI explained
Listed on the threat map (2026-10-24)
Large hosting providers appear because attackers rent their servers, not necessarily because of the operator.
Announced Prefixes
(BGP)402|
Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
| Valid | RIPE | - | |
| Valid | RIPE | - | |
| Valid | RIPE | - | |
| Valid | RIPE | - | |
| Valid | RIPE | - | |
| Valid | RIPE | - | |
| Valid | RIPE | - | |
| Valid | RIPE | - | |
| Valid | RIPE | - | |
| Valid | RIPE | - |
1-10 of 402
1 / 41
Allocated Prefixes
(RIR)255Prefix | Country | RIR | Status |
|---|---|---|---|
| 45.157.49.0/24 | 🇨🇭 CH | RIPE | assigned |
| 45.157.50.0/24 | 🇨🇭 CH | RIPE | assigned |
| 45.157.51.0/24 | 🇨🇭 CH | RIPE | assigned |
| 46.14.0.0/16 | 🇨🇭 CH | RIPENCC | allocated |
| 46.14.0.0/17 | 🇨🇭 CH | RIPE | assigned |
| 46.14.128.0/17 | 🇨🇭 CH | RIPE | assigned |
| 46.245.144.0/21 | 🇨🇭 CH | RIPENCC | allocated |
| 62.202.0.0/15 | 🇨🇭 CH | RIPENCC | allocated |
| 62.203.0.0/16 | 🇨🇭 CH | RIPE | assigned |
| 78.110.128.0/20 | 🇨🇭 CH | RIPENCC | allocated |
1-10 of 255
1 / 26
All 402 announced prefixes of AS3303 →
Upstream Providers(7)
| ASN | Name |
|---|---|
| AS174 | 🇺🇸COGENT-174 - Cogent Communications, LLC |
| AS2914 | 🇺🇸NTT-DATA-2914 - NTT America, Inc. |
| AS3320 | 🇩🇪DTAG Deutsche Telekom AG |
| AS6939 | 🇺🇸HURRICANE - Hurricane Electric LLC |
| AS7473 | 🇸🇬SINGTEL-AS-AP - Singapore Telecommunications Ltd |
| AS12956 | 🇪🇸TELXIUS TELEFONICA GLOBAL SOLUTIONS SL |
| AS33891 | 🇩🇪CORE-BACKBONE Core-Backbone GmbH |
Downstream Customers(12)
| ASN | Name |
|---|---|
| AS6837 | 🇨🇭SWISSCOM-BBCS-AS Swisscom (Schweiz) AG |
| AS8300 | 🇨🇭Test-AS-Main Swisscom (Schweiz) AG |
| AS12637 | 🇮🇹SEEWEB SEEWEB s.r.l. |
| AS21273 | 🇨🇭TEST-AS-Cust Swisscom (Schweiz) AG |
| AS29222 | 🇨🇭Infomaniak-AS Infomaniak Network SA |
| AS34019 | 🇫🇷HIVANE Hivane Association |
| AS48885 | 🇨🇭NEOCARRIER Neocarrier Communications Sarl |
| AS49935 | 🇧🇪SmartEye SmartEye B.V |
| AS49983 | 🇨🇭MIRONET-AS MiroNet AG |
| AS204697 | 🇨🇭Amalthea-Metis Sunrise GmbH |
| AS205762 | 🇨🇭GTP-Filter Swisscom (Schweiz) AG |
| AS395446 | 🇺🇸BRIGGS-STRATTON - Briggs & Stratton Corporation |
BGP Neighbours
(seen in AS paths)Upstreams (14)
Networks AS3303 hands its own prefixes to: transit providers, or peers at an exchange.
- AS3320DTAG Deutsche Telekom112
- AS3356Level 3 Parent84
- AS12956TELXIUS TELEFONICA GLOBAL SOLUTIONS SL65
- AS6762SEABONE NET TELECOM ITALIA SPARKLE S.P.A51
- AS60068CDN77 Datacamp Limited32
- AS2914NTT America18
- AS7473Singapore Telecommunications15
- AS24961MYLOC WIIT8
- AS174Cogent Communications6
- AS58057SECUREBIT4
- AS2497Internet Initiative Japan2
- AS6939Hurricane Electric2
- AS1836GREEN Green.Ch1
- AS8447A1TELEKOM AT A1 Telekom Austria1
Downstreams (100 of 131)
Networks whose own prefixes AS3303 passes on: usually its customers.
- AS28118ALTICE DOMINICANA S.A521
- AS8452IDDQD256
- AS12874FASTWEB SpA74
- AS29222Infomaniak Network28
- AS8300Test Main Swisscom (Schweiz)16
- AS15600QUICKLINE14
- AS8758IWAY13
- AS51395SOFTPLUS Datasource13
- AS15623CYBERLINK12
- AS24645CSC TELECOM LT CSC Telecom, UAB12
- AS29166NZZ Neue Zuercher Zeitung10
- AS15532Raiffeisen Schweiz Genossenschaft9
- AS15547NETPLUS Netplus.Ch9
- AS28686AVENIQ8
- AS12511CH POSTNETZ Die Schweizerische Post7
- AS12620TICINOCOM7
- AS20988MTF Solutions MTF Solutions7
- AS24949BTCML AXA Technology Services UK Limited7
- AS204572Ofacgroup Ofac Societe Cooperative7
- AS12333DFINET Cheops Technology Switzerland6
- AS48038CH COOP Genossenschaft6
- AS60486SNS Swiss Networking Solutions6
- AS216434Aity6
- AS8803MIGROS Genossenschafts Bund5
- AS19108Optimum5
- AS29500SWISSRE Schweizerische Rueckversicherungs Gesellschaft5
- AS205073CIRCUITT EQUANT5
- AS12637SEEWEB S.R.L4
- AS20743SWX SIX Swiss Exchange4
- AS201590SOCAR Energy Holdings4
- AS204970MANOR CH Manor4
- AS206225UPU Union Postale Universelle4
- AS212777MOBILIAR Schweizerische Mobiliar Versicherungsgesellschaft4
- AS3573Accenture LLP3
- AS9042SIX Group Services3
- AS12651IPWORLDCOM IP Worldcom3
- AS25289BNP PARIBAS S.A3
- AS31141SWISSQUOTE Bank3
- AS44346SQ BACKBONE SWISSQUOTE BANK3
- AS47617Wagner Informatik Dienstleistungen3
- AS48885NEOCARRIER Communications Sarl3
- AS59414CLOUDSCALE Cloudscale.Ch3
- AS206790Banque De Commerce Et De Placements Banque De Commerce Et De Placements3
- AS208305Viseca Payment Services3
- AS209822Bkw Energie3
- AS15398CYBERCORE Werft222
- AS15440Baltneta UAB "Baltnetos Komunikacijos"2
- AS15517NETSTREAM CH Netstream Holding2
- AS15796SALT CH Salt Mobile2
- AS21222ASN ROLEX2
- AS21273TEST Cust Swisscom (Schweiz)2
- AS25090ALPIQ AS25090 Alpiq2
- AS30786LOCAL CH Swisscom Directories2
- AS34058LIFECELL Limited Liability Company "Lifecell"2
- AS34261BUHLERGROUP Buhler2
- AS39063LEITWERT2
- AS39932ERGON Informatik2
- AS44888HUSU Huber+Suhner2
- AS48482ITENSIS Wuerth Itensis2
- AS50476GRPMUT Groupe Mutuel Association2
- AS60633SWISSCOM MPLS TRANSIT Swisscom (Schweiz)2
- AS61012LIVEDRIVE Internet2
- AS137409GSL Networks Pty2
- AS198330Xefi LYON SAS2
- AS202360TGF The Global Fund To Fight AIDS, Tuberculosis And Malaria2
- AS202452FLOW ALP2 Flow Swiss2
- AS206466PALEXPO2
- AS209848CARDCENTER UBS Card Center2
- AS211197ILZ Informatikleistungszentrum Obwalden Nidwalden (ILZ)2
- AS42WoodyNet1
- AS3255UARNET EKSINTECH1
- AS3257GTT BACKBONE GTT Communications1
- AS12928BCV Banque Cantonale Vaudoise1
- AS13267Zuercher Kantonalbank1
- AS13445Cisco Webex1
- AS13489UNE EPM TELECOMUNICACIONES S.A1
- AS23520Columbus Networks USA1
- AS24952FIRMENICH1
- AS29058CIO IOC International Olympic Committee (IOC)1
- AS29403VERISIGN1
- AS31004SBB CFF FFS Schweizerische Bundesbahnen SBB1
- AS31097CORNER Banca1
- AS33922NTT LT UAB Nacionalinis Telekomunikaciju Tinklas1
- AS34019HIVANE Association1
- AS34532Bruetsch Ruegger Bruetsch/Rueegger Holding1
- AS39132Swissgrid1
- AS39166SAG CH SAG Management International1
- AS39671STONEHAGEFLEMING Corient1
- AS41294ZUGERKB Zuger Kantonalbank1
- AS43127PCK Ifolor1
- AS47302CYON1
- AS47538ANCOMA Swisspro1
- AS48138PATEK PHILIPPE Patek Philippe Geneve1
- AS50110GERICHTEZH Obergericht Des Kanton Zurich1
- AS50277TPGNET Transports Publics Genevois1
- AS50598SFS Services SFS Group Schweiz1
- AS50849ASN LUGA Comune Di Lugano1
- AS51778ASPUREICT Pure ICT1
- AS53589PlanetHoster1
- AS196722SCHWEIZERISCHE NATIONALBANK Schweizerische Nationalbank1
Other adjacent networks (37)
Adjacent to AS3303 in the transit part of AS paths: peers, providers or customers.
- AS6774ASN BICS Belgacom International Carrier Services430
- AS11164Internet2317
- AS3214XTOM296
- AS43440Digitalesuisse Digitale Suisse156
- AS33891CORE BACKBONE Core Backbone155
- AS34177CELESTE SAS115
- AS37468Angola Cables Angola Cables113
- AS20080Florida International University57
- AS49028D LAKE D LAKE SAS26
- AS48362TKSWF Stadtwerke Feldkirch15
- AS6453TATA COMMUNICATIONS (AMERICA)13
- AS3491PCCW Global (HK)11
- AS44530HOPUS SAS6
- AS3170VELOXSERV Communications5
- AS34549MEER Meerfarbig & . KG5
- AS3326Datagroup PRIVATE JOINT STOCK COMPANY "DATAGROUP"4
- AS31736SENSELAN4
- AS2907Research Organization Of Information And Systems, National Institute Of Informatics3
- AS24951EVERYWARE NET EveryWare3
- AS25091IP Max IP Max3
- AS20473The Constant Company2
- AS50581UTG Ukrainian Telecommunication Group2
- AS262505N4 Telecomunicacoes LTDA ME2
- AS1031PEER 10311
- AS1273IDDQD1
- AS1916Rede Nacional De Ensino E Pesquisa1
- AS2874ORANGE BUSINESS SERVICES NORDICS ORANGE BUSINESS SERVICES U.S1
- AS4637Telstra Global1
- AS4837CHINA UNICOM China169 Backbone1
- AS5617TPNET Orange Polska Spolka Akcyjna1
- AS7342VeriSign Infrastructure & Operations1
- AS8674NETNOD IX Netnod AB1
- AS20764RASCOM CJSC RASCOM1
- AS20845DIGICABLE 2Connect Telecommunications Infrastructure & Network Services1
- AS24745Balcan IX Orange Romania S.A1
- AS24852VINITA UAB INIT1
- AS38136Akari Networks1
ASPA
Published7 upstreams, 12 downstreams
Listed as Upstream Provider by
12 ASNsAbuse Contact
External Links
Learn more
- What is an ASN?Autonomous systems, ASN ranges and how they are assigned
- RPKI and route origin validationWhat the RPKI badges on the prefix list mean
- How to run an ASPA checkVerify the upstream providers listed above
- IPv4 transfers in the RIPE NCC regionMonthly volume and the latest registry transfers
- ASN data in AI agents and SIEMMCP server and API integrations
API
Open https://api.ipctl.io/v1/asn/3303Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/3303" | jq