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
AS15315
IVANET-LISBON - IBASIS INC. Announcing routesAS nameIBASIS-LISBON
OrganisationIBASIS INC.
Registry (RIR)ARIN
HandleAS15315
RangeAS15315
Registered17 Apr 2000
Last changed12 May 2026
4IPv4 prefixes
0IPv6 prefixes
3Upstreams
0Downstreams
Upstreams
| AS | Network name | Visibility |
|---|---|---|
| AS3257 | GTT-BACKBONE GTT Communications Inc. | 201 |
| AS8657 | MEO-INTERNACIONAL MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A. | 56 |
| AS286 | KPN GTT Communications Inc. | 1 |
Downstreams
None seen.
IPv4 prefixes (4)
RPKI-validate all prefixes of AS15315
Contacts
| Role | Name | Handle | Email / phone | Address |
|---|---|---|---|---|
| registrant | IBASIS INC. | IBASIS | 10 MAQUIRE RD BUILDING 3 3RD FLOOR, LEXINGTON, MA, 02421, United States | |
| abuse | ABUSE | ABUSE488-ARIN | [email protected], [email protected], +1-781-430-7500;ext7552 | 10 Maguire Road Building 3, Lexington, MA, 02421, United States |
| noc | NOC | NOC1455-ARIN | [email protected], +1-781-505-7551;ext7551 | 20 Second Ave., Burlington, MA, 01803, United States |
| technical, administrative, abuse, noc | Network Engineering | NETWO7105-ARIN | [email protected], +1-781-430-7500 | 10 MAGUIRE RD BUILDING 3, LEXINGTON, MA, 02421, United States |
Raw registry response
{
"endAutnum": 15315,
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-09-19T12:37:30-04:00"
},
{
"eventAction": "registration",
"eventDate": "2003-12-11T13:55:15-05:00"
}
],
"handle": "ABUSE488-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/ABUSE488-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/15315"
},
{
"href": "https://whois.arin.net/rest/poc/ABUSE488-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/15315"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"abuse"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "10 Maguire Road Building 3\nLexington\nMA\n02421\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"ABUSE"
],
[
"org",
[],
"text",
"iBasis, Inc."
],
[
"kind",
[],
"text",
"group"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-781-430-7500;ext7552"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2018-11-19T15:16:40-05:00"
},
{
"eventAction": "registration",
"eventDate": "2003-12-11T13:55:15-05:00"
}
],
"handle": "NOC1455-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/NOC1455-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/15315"
},
{
"href": "https://whois.arin.net/rest/poc/NOC1455-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/15315"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"ARIN has attempted to validate the data for this POC, but has received no response from the POC since 2019-11-19"
],
"title": "Unvalidated POC"
}
],
"roles": [
"noc"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "20 Second Ave.\nBurlington\nMA\n01803\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"NOC"
],
[
"org",
[],
"text",
"iBasis, Inc."
],
[
"kind",
[],
"text",
"group"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-781-505-7551;ext7551"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-04-30T09:51:10-04:00"
},
{
"eventAction": "registration",
"eventDate": "2014-09-03T13:47:58-04:00"
}
],
"handle": "NETWO7105-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/NETWO7105-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/15315"
},
{
"href": "https://whois.arin.net/rest/poc/NETWO7105-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/15315"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical",
"administrative",
"abuse",
"noc"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "10 MAGUIRE RD BUILDING 3\nLEXINGTON\nMA\n02421\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"Network Engineering"
],
[
"org",
[],
"text",
"iBasis"
],
[
"kind",
[],
"text",
"group"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-781-430-7500"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2024-11-25T11:09:46-05:00"
},
{
"eventAction": "registration",
"eventDate": "1999-11-20T00:00:00-05:00"
}
],
"handle": "IBASIS",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/IBASIS",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/15315"
},
{
"href": "https://whois.arin.net/rest/org/IBASIS",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/15315"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"IBASIS INC."
],
[
"adr",
{
"label": "10 MAQUIRE RD BUILDING 3 3RD FLOOR\nLEXINGTON\nMA\n02421\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
[],
"text",
"org"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-05-12T12:01:52-04:00"
},
{
"eventAction": "registration",
"eventDate": "2000-04-17T00:00:00-04:00"
}
],
"handle": "AS15315",
"links": [
{
"href": "https://rdap.arin.net/registry/autnum/15315",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/15315"
},
{
"href": "https://whois.arin.net/rest/asn/AS15315",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/15315"
}
],
"name": "IBASIS-LISBON",
"notices": [
{
"description": [
"By using the ARIN RDAP/Whois service, you are agreeing to the RDAP/Whois Terms of Use"
],
"links": [
{
"href": "https://www.arin.net/resources/registry/whois/tou/",
"rel": "terms-of-service",
"type": "text/html",
"value": "https://rdap.arin.net/registry/autnum/15315"
}
],
"title": "Terms of Service"
},
{
"description": [
"If you see inaccuracies in the results, please visit: "
],
"links": [
{
"href": "https://www.arin.net/resources/registry/whois/inaccuracy_reporting/",
"rel": "inaccuracy-report",
"type": "text/html",
"value": "https://rdap.arin.net/registry/autnum/15315"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "autnum",
"port43": "whois.arin.net",
"rdapConformance": [
"nro_rdap_profile_0",
"rdap_level_0",
"nro_rdap_profile_asn_flat_0"
],
"startAutnum": 15315,
"status": [
"active"
]
}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.
