Free network tools
AS WHOIS
Look up an Autonomous System — holder, registry, contacts, announced IPv4/IPv6 prefixes, upstreams and downstreams.
Network Report (All-in-one) BGP Looking Glass BGP Security Check RPKI Validator BGP Hijack & Leak Monitor ASN Intelligence Internet Outages & Anomalies Country Internet Report Domain Insights IP WHOIS AS WHOIS
AS39729
REGISTER-AS REGISTER S.P.A. Announcing routesAS nameREGISTER-AS
OrganisationMNT-REGISTER
Registry (RIR)RIPE NCC
HandleAS39729
RangeAS39729
Registered18 Apr 2006
Last changed18 Sep 2025
Abuse contact[email protected]
21IPv4 prefixes
1IPv6 prefixes
19Upstreams
0Downstreams
Upstreams
| AS | Network name | Visibility |
|---|---|---|
| AS35280 | F5 F5 Networks SARL | 264 |
| AS3257 | GTT-BACKBONE GTT Communications Inc. | 173 |
| AS6939 | HURRICANE - Hurricane Electric LLC | 88 |
| AS8968 | BT-Italia RETELIT-X S.R.L. | 75 |
| AS5405 | INTERDOTLINK Inter.link GmbH | 9 |
| AS8218 | NEO-ASN Zayo Infrastructure France SA | 5 |
| AS29632 | NASSIST-AS Netassist International EOOD | 4 |
| AS14840 | AS14840 - BR.Digital Telecom | 2 |
| AS22356 | AS22356 - Durand do Brasil Ltda | 2 |
| AS24961 | MYLOC-AS WIIT AG | 2 |
| AS29075 | IELO IELO-LIAZO SERVICES SAS | 2 |
| AS4455 | BSO IX Reach Ltd | 2 |
| AS137409 | GSLNETWORKS-AS-AP - GSL Networks Pty LTD | 1 |
| AS263444 | AS263444 - Open X Tecnologia Ltda | 1 |
| AS286 | KPN GTT Communications Inc. | 1 |
Downstreams
None seen.
IPv4 prefixes (21)
81.88.48.0/20185.110.66.0/24195.110.118.0/2381.88.58.0/2481.88.52.0/2481.88.60.0/24195.110.124.0/22195.110.112.0/24195.110.120.0/23195.110.107.0/24185.2.4.0/2281.88.53.0/24195.110.104.0/23185.110.66.0/23195.110.100.0/23195.110.102.0/2381.88.61.0/2481.88.63.0/24195.110.122.0/23213.158.80.0/22185.2.6.0/24
IPv6 prefixes (1)
RPKI-validate all prefixes of AS39729
Contacts
| Role | Name | Handle | Email / phone | Address |
|---|---|---|---|---|
| registrant | MNT-REGISTER | MNT-REGISTER | ||
| registrant | REGISTER S.P.A. | ORG-RS12-RIPE | +39055200211, +3905520021550 | Viale della Giovine Italia, 17, I-50122, Firenze, ITALY |
| administrative | Register.it board - Direzione | REGA-RIPE | [email protected] | Register.IT S.p.A., Via Ponti, 6, 24126 Bergamo, ITALY |
| technical | register.it sistemisti | REGT-RIPE | [email protected] | Register.IT S.p.A. - Gruppo Sistemi, Viale della Giovine Italia, 17, 50122 Firenze, ITALY |
| registrant | RIPE-NCC-END-MNT | RIPE-NCC-END-MNT | ||
| abuse | register.it sistemisti | REGT-RIPE | [email protected] | Register.IT S.p.A. - Gruppo Sistemi, Viale della Giovine Italia, 17, 50122 Firenze, ITALY |
| technical | Claudio Fioravanti | CF8179-RIPE | +39055200211 | Viale Giovine Italia, 17, I-50122, Firenze, ITALY |
| technical | Federico Melaccio | FM20996-RIPE | +39055200211 | Viale Giovine Italia, 17, I-50122, Firenze, ITALY |
| technical | Emiliano Certini | MILO2-RIPE | +39055200211 | Viale Giovine Italia, 17, I-50122, Firenze, ITALY |
| registrant | MNT-REGISTER | MNT-REGISTER | ||
| technical | Andrea Perissin | PERI55-RIPE | +39 035 3230300, +39 035 3230312 | Register.IT S.p.A. - Gruppo Sistemi, Via Ponti, 6, 24126 Bergamo, ITALY |
| technical | Fabio Calissi | PERN1-RIPE | +39 035 3230300, +39 055 3416512 | Register.IT S.p.A. - Gruppo Sistemi, Via Danubio, 14 (terzo piano - Torre Nord), località OSMANNORO, 50019 Sesto Fiorentino (FI), ITALY |
| administrative | Register.it board - Direzione | REGA-RIPE | [email protected] | Register.IT S.p.A., Via Ponti, 6, 24126 Bergamo, ITALY |
| technical | Tiziano Viviani | TV2675-RIPE | +39055200211 | Viale Giovine Italia, 17, I-50122, Firenze, ITALY |
Raw registry response
{
"handle": "AS39729",
"startAutnum": 39729,
"endAutnum": 39729,
"name": "REGISTER-AS",
"status": [
"active"
],
"entities": [
{
"handle": "MNT-REGISTER",
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"MNT-REGISTER"
],
[
"kind",
[],
"text",
"individual"
],
[
"org",
[],
"text",
"ORG-RS12-RIPE"
]
]
],
"roles": [
"registrant"
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/39729",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/MNT-REGISTER"
},
{
"value": "http://www.ripe.net/data-tools/support/documentation/terms",
"rel": "copyright",
"href": "http://www.ripe.net/data-tools/support/documentation/terms"
}
],
"objectClassName": "entity"
},
{
"handle": "ORG-RS12-RIPE",
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"REGISTER S.P.A."
],
[
"kind",
[],
"text",
"org"
],
[
"adr",
{
"label": "Viale della Giovine Italia, 17\nI-50122\nFirenze\nITALY"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+39055200211"
],
[
"tel",
{
"type": "fax"
},
"text",
"+3905520021550"
]
]
],
"roles": [
"registrant"
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/39729",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/ORG-RS12-RIPE"
},
{
"value": "http://www.ripe.net/data-tools/support/documentation/terms",
"rel": "copyright",
"href": "http://www.ripe.net/data-tools/support/documentation/terms"
}
],
"objectClassName": "entity"
},
{
"handle": "REGA-RIPE",
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"Register.it board - Direzione"
],
[
"kind",
[],
"text",
"group"
],
[
"adr",
{
"label": "Register.IT S.p.A.\nVia Ponti, 6\n24126 Bergamo\nITALY"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"email",
{
"type": "abuse"
},
"text",
"[email protected]"
]
]
],
"roles": [
"administrative"
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/39729",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/REGA-RIPE"
},
{
"value": "http://www.ripe.net/data-tools/support/documentation/terms",
"rel": "copyright",
"href": "http://www.ripe.net/data-tools/support/documentation/terms"
}
],
"objectClassName": "entity"
},
{
"handle": "REGT-RIPE",
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"register.it sistemisti"
],
[
"kind",
[],
"text",
"group"
],
[
"adr",
{
"label": "Register.IT S.p.A. - Gruppo Sistemi\nViale della Giovine Italia, 17\n50122 Firenze\nITALY"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"email",
{
"type": "abuse"
},
"text",
"[email protected]"
]
]
],
"roles": [
"technical"
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/39729",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/REGT-RIPE"
},
{
"value": "http://www.ripe.net/data-tools/support/documentation/terms",
"rel": "copyright",
"href": "http://www.ripe.net/data-tools/support/documentation/terms"
}
],
"objectClassName": "entity"
},
{
"handle": "RIPE-NCC-END-MNT",
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"RIPE-NCC-END-MNT"
],
[
"kind",
[],
"text",
"individual"
],
[
"org",
[],
"text",
"ORG-NCC1-RIPE"
]
]
],
"roles": [
"registrant"
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/39729",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/RIPE-NCC-END-MNT"
},
{
"value": "http://www.ripe.net/data-tools/support/documentation/terms",
"rel": "copyright",
"href": "http://www.ripe.net/data-tools/support/documentation/terms"
}
],
"objectClassName": "entity"
},
{
"handle": "REGT-RIPE",
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"register.it sistemisti"
],
[
"kind",
[],
"text",
"group"
],
[
"adr",
{
"label": "Register.IT S.p.A. - Gruppo Sistemi\nViale della Giovine Italia, 17\n50122 Firenze\nITALY"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"email",
{
"type": "abuse"
},
"text",
"[email protected]"
]
]
],
"roles": [
"abuse"
],
"entities": [
{
"handle": "CF8179-RIPE",
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"Claudio Fioravanti"
],
[
"kind",
[],
"text",
"individual"
],
[
"adr",
{
"label": "Viale Giovine Italia, 17\nI-50122\nFirenze\nITALY"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+39055200211"
]
]
],
"roles": [
"technical"
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/39729",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/CF8179-RIPE"
},
{
"value": "http://www.ripe.net/data-tools/support/documentation/terms",
"rel": "copyright",
"href": "http://www.ripe.net/data-tools/support/documentation/terms"
}
],
"objectClassName": "entity"
},
{
"handle": "FM20996-RIPE",
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"Federico Melaccio"
],
[
"kind",
[],
"text",
"individual"
],
[
"adr",
{
"label": "Viale Giovine Italia, 17\nI-50122\nFirenze\nITALY"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+39055200211"
]
]
],
"roles": [
"technical"
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/39729",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/FM20996-RIPE"
},
{
"value": "http://www.ripe.net/data-tools/support/documentation/terms",
"rel": "copyright",
"href": "http://www.ripe.net/data-tools/support/documentation/terms"
}
],
"objectClassName": "entity"
},
{
"handle": "MILO2-RIPE",
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"Emiliano Certini"
],
[
"kind",
[],
"text",
"individual"
],
[
"adr",
{
"label": "Viale Giovine Italia, 17\nI-50122\nFirenze\nITALY"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+39055200211"
]
]
],
"roles": [
"technical"
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/39729",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/MILO2-RIPE"
},
{
"value": "http://www.ripe.net/data-tools/support/documentation/terms",
"rel": "copyright",
"href": "http://www.ripe.net/data-tools/support/documentation/terms"
}
],
"objectClassName": "entity"
},
{
"handle": "MNT-REGISTER",
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"MNT-REGISTER"
],
[
"kind",
[],
"text",
"individual"
],
[
"org",
[],
"text",
"ORG-RS12-RIPE"
]
]
],
"roles": [
"registrant"
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/39729",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/MNT-REGISTER"
},
{
"value": "http://www.ripe.net/data-tools/support/documentation/terms",
"rel": "copyright",
"href": "http://www.ripe.net/data-tools/support/documentation/terms"
}
],
"objectClassName": "entity"
},
{
"handle": "PERI55-RIPE",
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"Andrea Perissin"
],
[
"kind",
[],
"text",
"individual"
],
[
"adr",
{
"label": "Register.IT S.p.A. - Gruppo Sistemi\nVia Ponti, 6\n24126 Bergamo\nITALY"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+39 035 3230300"
],
[
"tel",
{
"type": "fax"
},
"text",
"+39 035 3230312"
]
]
],
"roles": [
"technical"
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/39729",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/PERI55-RIPE"
},
{
"value": "http://www.ripe.net/data-tools/support/documentation/terms",
"rel": "copyright",
"href": "http://www.ripe.net/data-tools/support/documentation/terms"
}
],
"objectClassName": "entity"
},
{
"handle": "PERN1-RIPE",
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"Fabio Calissi"
],
[
"kind",
[],
"text",
"individual"
],
[
"adr",
{
"label": "Register.IT S.p.A. - Gruppo Sistemi\nVia Danubio, 14 (terzo piano - Torre Nord)\nlocalità OSMANNORO\n50019 Sesto Fiorentino (FI)\nITALY"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+39 035 3230300"
],
[
"tel",
{
"type": "fax"
},
"text",
"+39 055 3416512"
]
]
],
"roles": [
"technical"
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/39729",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/PERN1-RIPE"
},
{
"value": "http://www.ripe.net/data-tools/support/documentation/terms",
"rel": "copyright",
"href": "http://www.ripe.net/data-tools/support/documentation/terms"
}
],
"objectClassName": "entity"
},
{
"handle": "REGA-RIPE",
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"Register.it board - Direzione"
],
[
"kind",
[],
"text",
"group"
],
[
"adr",
{
"label": "Register.IT S.p.A.\nVia Ponti, 6\n24126 Bergamo\nITALY"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"email",
{
"type": "abuse"
},
"text",
"[email protected]"
]
]
],
"roles": [
"administrative"
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/39729",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/REGA-RIPE"
},
{
"value": "http://www.ripe.net/data-tools/support/documentation/terms",
"rel": "copyright",
"href": "http://www.ripe.net/data-tools/support/documentation/terms"
}
],
"objectClassName": "entity"
},
{
"handle": "TV2675-RIPE",
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"Tiziano Viviani"
],
[
"kind",
[],
"text",
"individual"
],
[
"adr",
{
"label": "Viale Giovine Italia, 17\nI-50122\nFirenze\nITALY"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+39055200211"
]
]
],
"roles": [
"technical"
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/39729",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/TV2675-RIPE"
},
{
"value": "http://www.ripe.net/data-tools/support/documentation/terms",
"rel": "copyright",
"href": "http://www.ripe.net/data-tools/support/documentation/terms"
}
],
"objectClassName": "entity"
}
],
"objectClassName": "entity"
}
],
"remarks": [
{
"description": [
"--- Transit Suppliers ---",
"--- Peering Partners ---",
"--- Scrubbing Services ---",
"--- IPv6 Transit ---"
]
}
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/39729",
"rel": "rdap-up",
"href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-up/AS39729",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/autnum/39729",
"rel": "rdap-up rdap-active",
"href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-up/AS39729?status=active",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/autnum/39729",
"rel": "rdap-down",
"href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-down/AS39729",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/autnum/39729",
"rel": "rdap-top",
"href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-top/AS39729",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/autnum/39729",
"rel": "rdap-top rdap-active",
"href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-top/AS39729?status=active",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/autnum/39729",
"rel": "rdap-bottom",
"href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-bottom/AS39729",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/autnum/39729",
"rel": "self",
"href": "https://rdap.db.ripe.net/autnum/39729",
"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": "2006-04-18T14:04:30Z"
},
{
"eventAction": "last changed",
"eventDate": "2025-09-18T09:52:51Z"
}
],
"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/39729",
"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/39729",
"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": "$.entities[?(@.handle=='ORG-RS12-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
"method": "removal"
},
{
"name": {
"description": "Personal e-mail information"
},
"reason": {
"description": "Personal data"
},
"prePath": "$.entities[?(@.handle=='REGA-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
"method": "removal"
},
{
"name": {
"description": "Personal e-mail information"
},
"reason": {
"description": "Personal data"
},
"prePath": "$.entities[?(@.handle=='REGT-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
"method": "removal"
},
{
"name": {
"description": "Personal e-mail information"
},
"reason": {
"description": "Personal data"
},
"prePath": "$.entities[?(@.handle=='REGT-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
"method": "removal"
}
]
}Results come from public internet registries and live global routing data. Results are cached for up to an hour. Lookups are logged with your IP address to prevent abuse — see our Privacy Policy.
