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AS12129
123NET - 123.Net, Inc. Announcing routescachedAS name123NET
Organisation123.Net, Inc.
Registry (RIR)ARIN
HandleAS12129
RangeAS12129
Registered30 Mar 1999
Last changed02 Mar 2012
Abuse contact[email protected]
48IPv4 prefixes
4IPv6 prefixes
14Upstreams
98Downstreams
Upstreams
| AS | Network name | Visibility |
|---|---|---|
| AS6939 | HURRICANE - Hurricane Electric LLC | 18398 |
| AS6461 | ZAYO-6461 - Zayo Bandwidth | 3035 |
| AS174 | COGENT-174 - Cogent Communications, LLC | 1727 |
| AS1299 | TWELVE99 Arelion Sweden AB | 1701 |
| AS3356 | LEVEL3 - Level 3 Parent, LLC | 1556 |
| AS3257 | GTT-BACKBONE GTT Communications Inc. | 1079 |
| AS6453 | AS6453 - TATA COMMUNICATIONS (AMERICA) INC | 1004 |
| AS2914 | NTT-DATA-2914 - NTT America, Inc. | 831 |
| AS396998 | PATH-NETWORK - Path Network, Inc. | 225 |
| AS286 | KPN GTT Communications Inc. | 37 |
| AS6327 | SHAW - Shaw Communications | 4 |
| AS11115 | ONLINE-TECH-LLC - Otava, LLC | 3 |
| AS8966 | Etisalat-AS EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC | 2 |
| AS36394 | ASN-GRID4-GATEWAYS - Grid4 Communications, Inc | 1 |
Downstreams
| AS | Network name | Visibility |
|---|---|---|
| AS401307 | MISEN-ASN-1 - Michigan Statewide Educational Network | 5304 |
| AS11115 | ONLINE-TECH-LLC - Otava, LLC | 801 |
| AS27216 | AIR-ADVANTAGE-ASN - Air Advantage LLC | 659 |
| AS32477 | ONLINE-TECH-LLC2 - Otava, LLC | 546 |
| AS22379 | MANIFOLD - Manifold Services Inc | 514 |
| AS17143 | WINNTELECOM - Winn Telecom | 506 |
| AS32002 | RACKGENIUS - RackGenius | 473 |
| AS15154 | SBBSNET - Network Services Group | 465 |
| AS21527 | DAYSTARR-NET - Daystarr Communications | 444 |
| AS8134 | UP-NET - Baraga Telephone Company | 422 |
| AS16939 | CARETECH-SOLUTIONS - CARETECH SOLUTIONS INC | 417 |
| AS54178 | USAI-NA-01 - Urban Science Applications, Inc. | 395 |
| AS397085 | SIGUS - Signal Restoration Services | 384 |
| AS393474 | SCCRESA - St. Clair County Regional Educational Service Agency | 382 |
| AS395813 | MICHIGAN-CENTRAL - Michigan Central Innovation District, LLC | 379 |
IPv4 prefixes (48)
66.103.224.0/19152.160.184.0/21192.153.192.0/24198.3.44.0/24199.249.0.0/2167.214.112.0/20209.124.52.0/23199.167.252.0/22130.51.212.0/22152.160.110.0/24192.159.68.0/23198.153.129.0/24198.3.46.0/24216.109.192.0/2069.54.69.0/24209.103.128.0/20208.86.112.0/24204.232.80.0/20192.96.208.0/20209.131.0.0/1969.54.68.0/24198.3.45.0/24152.160.0.0/1774.126.0.0/19207.91.200.0/21152.160.140.0/22149.19.205.0/24209.124.32.0/19216.234.96.0/19152.160.144.0/2265.183.160.0/1969.39.64.0/1974.126.12.0/24207.91.232.0/21207.91.192.0/18199.33.234.0/23130.44.28.0/22152.160.160.0/20192.149.240.0/24198.3.47.0/24205.251.176.0/20209.124.56.0/22152.160.128.0/18204.106.17.0/24216.150.224.0/20207.91.203.0/2466.51.144.0/20199.231.52.0/22
IPv6 prefixes (4)
RPKI-validate all prefixes of AS12129
Contacts
| Role | Name | Handle | Email / phone | Address |
|---|---|---|---|---|
| registrant | 123.Net, Inc. | NETIN-6 | 24700 Northwestern Hwy. STE 700, Southfield, MI, 48075, United States | |
| administrative, abuse, noc, technical | Ryan Duda | RD1464-ARIN | [email protected], +1-248-228-8200 | 24700 Northwestern Hwy. STE 700, Southfield, MI, 48075, United States |
| technical | James Nowlan | JNO80-ARIN | [email protected], +1-248-228-8200 | 24700 Northwestern Hwy, Fl 7, Southfield, MI, 48075, United States |
Raw registry response
{
"endAutnum": 12129,
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-01-01T11:24:53-05:00"
},
{
"eventAction": "registration",
"eventDate": "1996-08-23T13:36:16-04:00"
}
],
"handle": "RD1464-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/RD1464-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/12129"
},
{
"href": "https://whois.arin.net/rest/poc/RD1464-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/12129"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"Submit abuse reports to [email protected]"
],
"title": "Registration Comments"
}
],
"roles": [
"administrative",
"abuse",
"noc",
"technical"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "24700 Northwestern Hwy. STE 700\nSouthfield\nMI\n48075\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"Ryan Duda"
],
[
"n",
[],
"text",
[
"Duda",
"Ryan",
"",
"",
""
]
],
[
"kind",
[],
"text",
"individual"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-248-228-8200"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-09-06T21:51:43-04:00"
},
{
"eventAction": "registration",
"eventDate": "2009-04-17T11:54:07-04:00"
}
],
"handle": "JNO80-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/JNO80-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/12129"
},
{
"href": "https://whois.arin.net/rest/poc/JNO80-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/12129"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"http://www.123.net\r",
"[email protected]"
],
"title": "Registration Comments"
}
],
"roles": [
"technical"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "24700 Northwestern Hwy, Fl 7\nSouthfield\nMI\n48075\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"James Nowlan"
],
[
"n",
[],
"text",
[
"Nowlan",
"James",
"",
"",
""
]
],
[
"kind",
[],
"text",
"individual"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-248-228-8200"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2017-01-28T08:32:29-05:00"
},
{
"eventAction": "registration",
"eventDate": "2010-11-19T15:03:23-05:00"
}
],
"handle": "NETIN-6",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/NETIN-6",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/12129"
},
{
"href": "https://whois.arin.net/rest/org/NETIN-6",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/12129"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"Direct Abuse: +1.248.228.8200 or [email protected]"
],
"title": "Registration Comments"
}
],
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"123.Net, Inc."
],
[
"adr",
{
"label": "24700 Northwestern Hwy. STE 700\nSouthfield\nMI\n48075\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
[],
"text",
"org"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2012-03-02T08:03:18-05:00"
},
{
"eventAction": "registration",
"eventDate": "1999-03-30T00:00:00-05:00"
}
],
"handle": "AS12129",
"links": [
{
"href": "https://rdap.arin.net/registry/autnum/12129",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/12129"
},
{
"href": "https://whois.arin.net/rest/asn/AS12129",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/12129"
}
],
"name": "123NET",
"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/12129"
}
],
"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/12129"
}
],
"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": 12129,
"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.