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Look up an Autonomous System — holder, registry, contacts, announced IPv4/IPv6 prefixes, upstreams and downstreams.
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AS4923
AS-SCF-DC - SCF Announcing routesAS nameAS-SCF-DC
OrganisationSCF
Registry (RIR)ARIN
HandleAS4923
RangeAS4923
Registered23 Jan 2018
Last changed23 Jan 2018
Abuse contact[email protected]
1IPv4 prefixes
0IPv6 prefixes
1Upstreams
0Downstreams
Upstreams
| AS | Network name | Visibility |
|---|---|---|
| AS14244 | AS-NSI-GLOBAL - NSI Hosting | 255 |
Downstreams
None seen.
IPv4 prefixes (1)
RPKI-validate all prefixes of AS4923
Contacts
| Role | Name | Handle | Email / phone | Address |
|---|---|---|---|---|
| registrant | SCF | SFL-175 | 44050 Ashburn Shopping PLZ, Suite 195-120, Ashburn, VA, 20147, United States | |
| technical, abuse, noc, administrative | ip-admin | IPADM801-ARIN | [email protected], +1-650-681-9070 | 44050 Ashburn Plaza STE 195, Ashburn, VA, 20147, United States |
| routing | Thomas Gervais | GERVA6-ARIN | [email protected], [email protected], +1-650-681-9070, +1-703-981-7831, +1-571-258-8188 | 3708 Elm Avenue, Baltimore, MD, 21211, United States |
Raw registry response
{
"endAutnum": 4923,
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-03-18T17:42:49-04:00"
},
{
"eventAction": "registration",
"eventDate": "2017-09-27T13:39:06-04:00"
}
],
"handle": "IPADM801-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/IPADM801-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/4923"
},
{
"href": "https://whois.arin.net/rest/poc/IPADM801-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/4923"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical",
"abuse",
"noc",
"administrative"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "44050 Ashburn Plaza STE 195\nAshburn\nVA\n20147\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"ip-admin"
],
[
"org",
[],
"text",
"SmartCap Financial, LLC."
],
[
"kind",
[],
"text",
"group"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-650-681-9070"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-03-18T17:42:05-04:00"
},
{
"eventAction": "registration",
"eventDate": "2016-04-04T16:05:08-04:00"
}
],
"handle": "GERVA6-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/GERVA6-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/4923"
},
{
"href": "https://whois.arin.net/rest/poc/GERVA6-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/4923"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"routing"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "3708 Elm Avenue\nBaltimore\nMD\n21211\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"Thomas Gervais"
],
[
"n",
[],
"text",
[
"Gervais",
"Thomas",
"",
"",
""
]
],
[
"kind",
[],
"text",
"individual"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-650-681-9070"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-703-981-7831"
],
[
"tel",
{
"type": [
"work",
"cell"
]
},
"text",
"+1-571-258-8188"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2022-03-07T19:53:41-05:00"
},
{
"eventAction": "registration",
"eventDate": "2017-09-28T13:02:48-04:00"
}
],
"handle": "SFL-175",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/SFL-175",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/4923"
},
{
"href": "https://whois.arin.net/rest/org/SFL-175",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/4923"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"SCF"
],
[
"adr",
{
"label": "44050 Ashburn Shopping PLZ\nSuite 195-120\nAshburn\nVA\n20147\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
[],
"text",
"org"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2018-01-23T13:09:14-05:00"
},
{
"eventAction": "registration",
"eventDate": "2018-01-23T13:09:14-05:00"
}
],
"handle": "AS4923",
"links": [
{
"href": "https://rdap.arin.net/registry/autnum/4923",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/4923"
},
{
"href": "https://whois.arin.net/rest/asn/AS4923",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/4923"
}
],
"name": "AS-SCF-DC",
"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/4923"
}
],
"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/4923"
}
],
"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": 4923,
"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.
