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AS WHOIS

Look up an Autonomous System — holder, registry, contacts, announced IPv4/IPv6 prefixes, upstreams and downstreams.

Your public IP address216.73.216.24 IPv4

AS21056

ASN-WELCOMEITALIA Vianova S.p.A Announcing routes
AS nameASN-WELCOMEITALIA
OrganisationVianova S.p.A
Registry (RIR)RIPE NCC
HandleAS21056
RangeAS21056
Registered02 May 2002
Last changed22 Dec 2025
Abuse contact[email protected]
43IPv4 prefixes
1IPv6 prefixes
64Upstreams
4Downstreams

Upstreams

ASNetwork nameVisibility
AS6762SEABONE-NET TELECOM ITALIA SPARKLE S.p.A.317
AS1299TWELVE99 Arelion Sweden AB166
AS3356LEVEL3 - Level 3 Parent, LLC135
AS6939HURRICANE - Hurricane Electric LLC71
AS34549MEER-AS meerfarbig GmbH & Co. KG21
AS50304BLIX Blix Solutions AS21
AS34927iFog-GmbH iFog GmbH19
AS29691NINE Nine Internet Solutions AG14
AS39351ESAB-AS 31173 Services AB14
AS20764RASCOM-AS CJSC RASCOM12
AS33891CORE-BACKBONE Core-Backbone GmbH12
AS37497Network Platforms (PTY) LTD - Network Platforms (PTY) LTD12
AS48362TKSWF-AS Stadtwerke Feldkirch12
AS6461ZAYO-6461 - Zayo Bandwidth11
AS8966Etisalat-AS EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC11

Downstreams

ASNetwork nameVisibility
AS47242HOST-SPA Host SpA271
AS208775comacspait COMAC S.P.A.268
AS198320TELNETSYSTEMS Telnet Systems s.r.l.267
AS210224SNAPSYS-AS SNAP SYSTEM SRL173
IPv4 prefixes (43)
IPv6 prefixes (1)

RPKI-validate all prefixes of AS21056

Contacts

RoleNameHandleEmail / phoneAddress
administrativeAndrea BelluominiAB18571-RIPE+39 058442441, +39 05844244201Welcome Italia spa, Via di Montramito, 431/A, Italy
registrantVianova S.p.AORG-WIS2-RIPE+39 0584 42441, +39 0584 4244201Via Provinciale di Montramito 431/a, 55040, Massarosa (LU), ITALY
registrantRIPE-NCC-END-MNTRIPE-NCC-END-MNT
registrantWELCOME-ITALIA-MNTWELCOME-ITALIA-MNT
technicalWelcome Italia IP NOCWIIN1-RIPE[email protected], +39 058442441, +39 05844244201Via di Montramito, 431/A, Italy
abuseWelcome Italia IP NOCWIIN1-RIPE[email protected], +39 058442441, +39 05844244201Via di Montramito, 431/A, Italy
administrative, technicalAndrea BelluominiAB18571-RIPE+39 058442441, +39 05844244201Welcome Italia spa, Via di Montramito, 431/A, Italy
technicalAngelo ColucciAC17299-RIPE+39 058442441, +39 05844244201Welcome Italia spa, Via di Montramito, 431/A, Italy
technicalGianluca EpifanoGE2407-RIPE+39 05844244250, +39 05844244201Via di Montramito, 431/A
technicalMassimiliano PuosiMP19685-RIPE+39 05844244277, +39 05844244201Via di Montramito, 431/A, Italy
registrantVianova S.p.AORG-WIS2-RIPE+39 0584 42441, +39 0584 4244201Via Provinciale di Montramito 431/a, 55040, Massarosa (LU), ITALY
registrantWELCOME-ITALIA-MNTWELCOME-ITALIA-MNT
Raw registry response
{
    "handle": "AS21056",
    "startAutnum": 21056,
    "endAutnum": 21056,
    "name": "ASN-WELCOMEITALIA",
    "status": [
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    ],
    "remarks": [
        {
            "description": [
                "==============================================================================================================================",
                "Peering informations:",
                "Operational issues:ipnoc [at] welcomeitalia [dot] it",
                "Spam and abuse issues:ipnoc [at] welcomeitalia [dot] it",
                "IPv4 network: Welcome Italia filters out inbound prefixes longer than /24",
                "IPv6 network: Welcome Italia filters out inbound prefixes longer than /48",
                "",
                "Peering requests peering [at] welcomeitalia [dot] it",
                "Others information http://as21056.peeringdb.com/",
                "IPv4 Transit:",
                "IPv6 Transit:",
                "Italian Exchange Point IPv4:",
                "IXP Speed and IP address by Town",
                "MIX -- 60 Gbps -- 217.29.66.43 -- Milan (IT)",
                "NAMEX -- 50 Gbps -- 193.201.28.41 -- Rome (IT)",
                "TIX -- 1 Gbps -- 193.42.140.23 -- Florence (IT)",
                "VSIX -- 1 Gbps -- 95.140.128.70 -- Padova (IT)",
                "European Exchange Point IPv4:",
                "DE-CIX -- 20 Gbps -- 80.81.196.141 -- Frankfurt (DE)",
                "DE-CIX -- 10 Gbps -- 185.1.47.117 -- Marseille (FR)",
                "AMS-IX -- 10 Gbps -- 80.249.214.79 -- Amsterdam (ND)",
                "LINX -- 10 Gbps -- 195.66.231.180 -- London (UK)",
                "FRANCE-IX -- 10 Gbps -- 37.49.238.160 -- Paris (FR)",
                "Private Network Interconnect",
                "Google AS15169 -- 100 Gbps -- Milan (IT)",
                "Customers IPv4:",
                "Customers IPv6:",
                "Communities used to tag inbound routes",
                "21056:65000 Routes received from Customers",
                "21056:65020 Routes received from peers at MIX IXP",
                "21056:65025 Routes received from peers at MIX IXP RS",
                "21056:65030 Routes received from peers at TIX IXP",
                "21056:65040 Routes received from peers at NAMEX IXP",
                "21056:65045 Routes received from peers at NAMEX IXP RS",
                "21056:65050 Routes received from peers at VSIX IXP",
                "21056:65055 Routes received from peers at VSIX IXP RS",
                "21056:65060 Routes received from peers at DECIX IXP",
                "21056:65065 Routes received from peers at DECIX IXP RS",
                "21056:65070 Routes received from peers at AMSIX IXP",
                "21056:65075 Routes received from peers at AMSIX IXP RS",
                "21056:65066 Routes received from peers at DECIX-MARSEILLE IXP",
                "21056:65067 Routes received from peers at DECIX-MARSEILLE RS",
                "21056:65080 Routes received from peers at LINX IXP",
                "21056:65085 Routes received from peers at LINX IXP RS",
                "21056:65090 Routes received from peers at FRANCE-IX IXP",
                "21056:65095 Routes received from peers at FRANCE-IX IXP RS",
                "21056:65100 Routes received from Google PNI (AS15169)",
                "21056:3356 Routes received from Level3 (AS3356)",
                "21056:1299 Routes received from Telia Sonera (AS1299)",
                "21056:6939 Routes received from Hurricane Electric (AS6939)",
                "21056:12874 Routes received from Fastweb (AS12874)",
                "21056:3269 Routes received from Telecom Italia (AS3269)",
                "21056:6762 Routes received from Sparkle (AS6762)",
                "21056:3257 Routes received from GTT (AS3257)",
                "Communities used to control routing announcements",
                "21056:6511x When advertising to Sparkle (AS6762)",
                "21056:6513x When advertising to Telecom Italia (AS3269)",
                "21056:6516x When advertising to GTT (AS3257)",
                "21056:6517x When advertising to Telia Sonera (AS1299)",
                "21056:6518x When advertising to Level3 (AS3356)",
                "21056:6519x When advertising to Fastweb (AS12874)",
                "21056:6520x When advertising to MIX members",
                "21056:6521x When advertising to TIX members",
                "21056:6522x When advertising to NAMEX members",
                "21056:6523x When advertising to VSIX members",
                "21056:6524x When advertising to DECIX members",
                "21056:6525x When advertising to AMSIX members",
                "21056:6526x When advertising to LINX members",
                "21056:6527x When advertising to FRANCE-IX members",
                "21056:6528x When advertising to Google PNI",
                "...x=0 - do not announce",
                "...x=1,2,3,4 - prepend 1,2,3,4 times",
                "...x=9 - set community no-export",
                "21056:65310 Do not announce to upstreams",
                "21056:65320 Do not announce to peers at any IXP",
                "21056:666 Black Hole Community"
            ]
        }
    ],
    "links": [
        {
            "value": "https://rdap.db.ripe.net/autnum/21056",
            "rel": "rdap-up",
            "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-up/AS21056",
            "type": "application/rdap+json"
        },
        {
            "value": "https://rdap.db.ripe.net/autnum/21056",
            "rel": "rdap-up rdap-active",
            "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-up/AS21056?status=active",
            "type": "application/rdap+json"
        },
        {
            "value": "https://rdap.db.ripe.net/autnum/21056",
            "rel": "rdap-down",
            "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-down/AS21056",
            "type": "application/rdap+json"
        },
        {
            "value": "https://rdap.db.ripe.net/autnum/21056",
            "rel": "rdap-top",
            "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-top/AS21056",
            "type": "application/rdap+json"
        },
        {
            "value": "https://rdap.db.ripe.net/autnum/21056",
            "rel": "rdap-top rdap-active",
            "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-top/AS21056?status=active",
            "type": "application/rdap+json"
        },
        {
            "value": "https://rdap.db.ripe.net/autnum/21056",
            "rel": "rdap-bottom",
            "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-bottom/AS21056",
            "type": "application/rdap+json"
        },
        {
            "value": "https://rdap.db.ripe.net/autnum/21056",
            "rel": "self",
            "href": "https://rdap.db.ripe.net/autnum/21056",
            "type": "application/rdap+json"
        },
        {
            "value": "http://www.ripe.net/data-tools/support/documentation/terms",
            "rel": "copyright",
            "href": "http://www.ripe.net/data-tools/support/documentation/terms"
        }
    ],
    "events": [
        {
            "eventAction": "registration",
            "eventDate": "2002-05-02T15:36:10Z"
        },
        {
            "eventAction": "last changed",
            "eventDate": "2025-12-22T13:39:46Z"
        }
    ],
    "rdapConformance": [
        "nro_rdap_profile_asn_flat_0",
        "rirSearch1",
        "autnums",
        "cidr0",
        "rdap_level_0",
        "nro_rdap_profile_0",
        "redacted"
    ],
    "notices": [
        {
            "title": "Filtered",
            "description": [
                "This output has been filtered."
            ]
        },
        {
            "title": "Whois Inaccuracy Reporting",
            "description": [
                "If you see inaccuracies in the results, please visit:"
            ],
            "links": [
                {
                    "value": "https://rdap.db.ripe.net/autnum/21056",
                    "rel": "inaccuracy-report",
                    "href": "https://www.ripe.net/contact-form?topic=ripe_dbm&show_form=true",
                    "type": "text/html"
                }
            ]
        },
        {
            "title": "Source",
            "description": [
                "Objects returned came from source",
                "RIPE"
            ]
        },
        {
            "title": "Terms and Conditions",
            "description": [
                "This is the RIPE Database query service. The objects are in RDAP format."
            ],
            "links": [
                {
                    "value": "https://rdap.db.ripe.net/autnum/21056",
                    "rel": "terms-of-service",
                    "href": "http://www.ripe.net/db/support/db-terms-conditions.pdf",
                    "type": "application/pdf"
                }
            ]
        }
    ],
    "port43": "whois.ripe.net",
    "objectClassName": "autnum",
    "redacted": [
        {
            "name": {
                "description": "Personal e-mail information"
            },
            "reason": {
                "description": "Personal data"
            },
            "prePath": "$.entities[?(@.handle=='AB18571-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
            "method": "removal"
        },
        {
            "name": {
                "description": "Personal e-mail information"
            },
            "reason": {
                "description": "Personal data"
            },
            "prePath": "$.entities[?(@.handle=='ORG-WIS2-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
            "method": "removal"
        },
        {
            "name": {
                "description": "Personal e-mail information"
            },
            "reason": {
                "description": "Personal data"
            },
            "prePath": "$.entities[?(@.handle=='WIIN1-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
            "method": "removal"
        },
        {
            "name": {
                "description": "Personal e-mail information"
            },
            "reason": {
                "description": "Personal data"
            },
            "prePath": "$.entities[?(@.handle=='WIIN1-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
            "method": "removal"
        }
    ]
}

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