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
AS18883
FIBERNET-NETWORK-OPERATIONS-CENTER - FiberNet Communications L.C. Announcing routesAS nameFIBERNET-NETWORK-OPERATIONS-CENTER
OrganisationFiberNet Communications L.C.
Registry (RIR)ARIN
HandleAS18883
RangeAS18883
Registered05 Jan 2011
Last changed24 Feb 2012
40IPv4 prefixes
2IPv6 prefixes
3Upstreams
5Downstreams
Upstreams
| AS | Network name | Visibility |
|---|---|---|
| AS5056 | AUREON-5056 - Aureon Network Services | 3575 |
| AS6939 | HURRICANE - Hurricane Electric LLC | 1164 |
| AS32621 | TCV-511 - Twin City VoIP, Inc. | 5 |
Downstreams
| AS | Network name | Visibility |
|---|---|---|
| AS53347 | PREMIER-COMMUNICATIONS - Premier Communications | 1654 |
| AS396878 | SPENCERMUNICIPALUTILITIES - Spencer Municipal Utilities | 801 |
| AS399693 | NCN-AS - Northwest Communications | 657 |
| AS401310 | PMTC-ASN - Palmer Mutual Telephone Company | 425 |
| AS15350 | ALGN-ASN-001 - Algona Municipal Utilities | 418 |
IPv4 prefixes (40)
206.72.51.0/24208.126.180.0/23208.126.84.0/24173.215.56.0/2370.39.13.0/24207.32.39.0/24199.120.101.0/24208.126.172.0/24216.51.184.0/24167.142.149.0/24208.126.173.0/24207.32.34.0/24208.126.145.0/24199.120.83.0/24207.177.77.0/24207.177.93.0/24207.177.92.0/24207.177.53.0/24173.215.55.0/24167.142.108.0/2364.29.184.0/22207.32.44.0/24207.177.21.0/24199.120.82.0/24216.51.231.0/24207.177.10.0/2423.247.204.0/22207.177.20.0/23208.126.72.0/24198.211.136.0/23216.51.202.0/24208.126.154.0/24207.177.15.0/24207.177.39.0/24167.142.34.0/24208.126.208.0/24208.126.194.0/2367.55.137.0/24207.32.15.0/24208.126.155.0/24
IPv6 prefixes (2)
RPKI-validate all prefixes of AS18883
Contacts
| Role | Name | Handle | Email / phone | Address |
|---|---|---|---|---|
| registrant | FiberNet Communications L.C. | FCL-70 | 339 1st Ave. NE, P.O. Box 200, Sioux Center, IA, 51250, United States | |
| technical, abuse, administrative | FiberNet | FIBER5-ARIN | [email protected], [email protected], +1-712-722-3451, +1-712-722-1113 | 339 1st Ave. NE , P.O. Box 200, Sioux Center, IA, 51250, United States |
| technical | Jimmy L Gaba | JLG93-ARIN | [email protected], +1-712-722-3451 | 339 1st Ave NE, Sioux Center, IA, 51250, United States |
| noc, abuse, technical | FiberNet | FIBER5-ARIN | [email protected], [email protected], +1-712-722-3451, +1-712-722-1113 | 339 1st Ave. NE , P.O. Box 200, Sioux Center, IA, 51250, United States |
Raw registry response
{
"endAutnum": 18883,
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-11-05T09:42:16-05:00"
},
{
"eventAction": "registration",
"eventDate": "2010-12-09T09:19:58-05:00"
}
],
"handle": "FIBER5-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/FIBER5-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/18883"
},
{
"href": "https://whois.arin.net/rest/poc/FIBER5-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/18883"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical",
"abuse",
"administrative"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "339 1st Ave. NE\r\nP.O. Box 200\nSioux Center\nIA\n51250\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"FiberNet"
],
[
"org",
[],
"text",
"FiberNet Communications"
],
[
"kind",
[],
"text",
"group"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-712-722-3451"
],
[
"tel",
{
"type": [
"work",
"fax"
]
},
"text",
"+1-712-722-1113"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-10-15T10:39:29-04:00"
},
{
"eventAction": "registration",
"eventDate": "2023-12-27T15:52:10-05:00"
}
],
"handle": "JLG93-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/JLG93-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/18883"
},
{
"href": "https://whois.arin.net/rest/poc/JLG93-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/18883"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "339 1st Ave NE\nSioux Center\nIA\n51250\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"Jimmy L Gaba"
],
[
"n",
[],
"text",
[
"Gaba",
"Jimmy",
"L",
"",
""
]
],
[
"kind",
[],
"text",
"individual"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-712-722-3451"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-07-09T14:38:49-04:00"
},
{
"eventAction": "registration",
"eventDate": "2010-12-10T14:13:55-05:00"
}
],
"handle": "FCL-70",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/FCL-70",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/18883"
},
{
"href": "https://whois.arin.net/rest/org/FCL-70",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/18883"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"FiberNet Communications L.C."
],
[
"adr",
{
"label": "339 1st Ave. NE\nP.O. Box 200\nSioux Center\nIA\n51250\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
[],
"text",
"org"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-11-05T09:42:16-05:00"
},
{
"eventAction": "registration",
"eventDate": "2010-12-09T09:19:58-05:00"
}
],
"handle": "FIBER5-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/FIBER5-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/18883"
},
{
"href": "https://whois.arin.net/rest/poc/FIBER5-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/18883"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"noc",
"abuse",
"technical"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "339 1st Ave. NE\r\nP.O. Box 200\nSioux Center\nIA\n51250\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"FiberNet"
],
[
"org",
[],
"text",
"FiberNet Communications"
],
[
"kind",
[],
"text",
"group"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-712-722-3451"
],
[
"tel",
{
"type": [
"work",
"fax"
]
},
"text",
"+1-712-722-1113"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2012-02-24T09:44:34-05:00"
},
{
"eventAction": "registration",
"eventDate": "2011-01-04T14:11:23-05:00"
}
],
"handle": "AS18883",
"links": [
{
"href": "https://rdap.arin.net/registry/autnum/18883",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/18883"
},
{
"href": "https://whois.arin.net/rest/asn/AS18883",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/18883"
}
],
"name": "FIBERNET-NETWORK-OPERATIONS-CENTER",
"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/18883"
}
],
"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/18883"
}
],
"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": 18883,
"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.
