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
AS23352
SERVERCENTRAL - DEFT.COM Announcing routesAS nameSERVERCENTRAL
OrganisationDEFT.COM
Registry (RIR)ARIN
HandleAS23352
RangeAS23352
Registered05 Mar 2002
Last changed15 Nov 2024
Abuse contact[email protected]
121IPv4 prefixes
24IPv6 prefixes
17Upstreams
33Downstreams
Upstreams
| AS | Network name | Visibility |
|---|---|---|
| AS6461 | ZAYO-6461 - Zayo Bandwidth | 5888 |
| AS3257 | GTT-BACKBONE GTT Communications Inc. | 4850 |
| AS2914 | NTT-DATA-2914 - NTT America, Inc. | 3862 |
| AS9507 | NEXTHOP-AS-AP - NextHop Pty Ltd | 747 |
| AS4637 | ASN-TELSTRA-GLOBAL - Telstra Global | 719 |
| AS13786 | SEABORN - Seabras 1 USA, LLC | 473 |
| AS3491 | PCCWG-APAC-HK - PCCW Global (HK) Ltd. | 421 |
| AS6453 | AS6453 - TATA COMMUNICATIONS (AMERICA) INC | 392 |
| AS701 | UUNET - Verizon Business | 361 |
| AS7195 | AS7195 - EDGEUNO S.A.S | 349 |
| AS174 | COGENT-174 - Cogent Communications, LLC | 341 |
| AS3223 | VOXILITY Voxility LLP | 273 |
| AS262287 | AS262287 - Latitude.sh LTDA | 223 |
| AS13649 | ASN-FLEXENTIAL - Flexential Colorado Corp. | 43 |
| AS286 | KPN GTT Communications Inc. | 41 |
Downstreams
| AS | Network name | Visibility |
|---|---|---|
| AS36352 | AS-COLOCROSSING - HostPapa | 2359 |
| AS19255 | YOUR-ORG-INC-NA - YOUR.ORG, INC. | 2279 |
| AS32475 | SINGLEHOP-LLC - Internap Holding LLC | 1022 |
| AS50219 | VT-255-50219 - Valence Technology Co. | 772 |
| AS25773 | RADWARE-CLOUD-SERVICES - RADWARE INC. | 724 |
| AS19557 | CHANGEIP-01 - CHANGEIP COM | 600 |
| AS30094 | GIGANEWS - Giganews, Inc. | 534 |
| AS25657 | BASECAMP - Basecamp, LLC | 502 |
| AS32771 | DNSIMPLE - DNSimple Corporation | 498 |
| AS33633 | USG-CORPORATION - USG Corporation, Inc. | 484 |
| AS10493 | GCN-AS - Grand Central Networks Inc. | 444 |
| AS398097 | WINTRUST-FINANCIAL-CORPORATION-EG-IL - Wintrust Financial Corporation | 403 |
| AS398795 | TALLWIRELESS - RFPT COMPANY LLC | 360 |
| AS26943 | YOUR-ORG-INC-EURO - YOUR.ORG, INC. | 327 |
| AS393713 | ALL-POINTS-BROADBAND-5 - All Points Broadband | 323 |
IPv4 prefixes (121)
204.93.254.0/23204.93.203.0/24199.30.216.0/2364.202.127.0/2475.102.0.0/18216.246.84.0/2275.102.52.0/22216.246.46.0/24204.93.240.0/21208.93.68.0/22205.234.167.0/24216.246.47.0/2466.235.126.0/23216.246.0.0/17204.93.160.0/20103.211.252.0/2350.31.177.0/2466.225.245.0/24216.246.60.0/22205.234.134.0/2450.31.176.0/2464.202.96.0/1964.202.120.0/2466.225.235.0/2466.225.210.0/2366.235.124.0/23205.234.191.0/24204.93.176.0/21204.93.193.0/24216.246.125.0/24216.246.98.0/24204.93.192.0/19204.93.255.0/2464.202.97.0/2450.31.244.0/2275.102.56.0/22103.2.140.0/22104.245.215.0/24216.246.116.0/2466.225.241.0/24192.206.92.0/2450.31.188.0/24205.234.220.0/2450.31.174.0/2466.225.221.0/24216.246.76.0/2250.31.140.0/2272.5.146.0/2464.202.104.0/24167.88.144.0/2068.71.139.0/2466.225.246.0/2450.31.192.0/20203.31.36.0/22103.211.253.0/24216.246.113.0/2466.225.216.0/22204.93.188.0/2350.31.172.0/2250.31.152.0/24204.93.254.0/24204.209.73.0/2475.102.60.0/2275.102.22.0/24208.93.64.0/21205.234.146.0/2475.102.8.0/2366.225.192.0/1866.225.244.0/24216.246.36.0/22192.145.108.0/2350.31.128.0/17216.246.124.0/2475.102.36.0/23206.51.240.0/21192.190.47.0/2475.102.23.0/2475.102.40.0/2150.31.248.0/21216.246.112.0/24205.234.160.0/24205.234.193.0/2450.31.224.0/21158.120.84.0/22103.211.252.0/2464.202.119.0/24205.234.221.0/24170.10.71.0/2450.31.248.0/24204.93.248.0/2266.225.212.0/2450.31.232.0/2150.31.128.0/18204.93.190.0/23204.93.128.0/17216.246.112.0/2250.31.168.0/2450.31.220.0/22104.245.208.0/21204.93.152.0/2150.31.208.0/20205.234.128.0/17216.246.73.0/2475.102.20.0/24205.234.219.0/24147.160.158.0/2475.102.4.0/24216.246.66.0/2375.102.58.0/24208.93.64.0/22204.93.248.0/24158.120.80.0/22204.93.247.0/24205.234.198.0/2466.235.122.0/23130.51.80.0/24204.93.252.0/2368.71.141.0/24167.88.154.0/24204.93.134.0/2466.225.201.0/24
IPv6 prefixes (24)
2001:1838:5000::/362001:1838:100a::/482001:1838:1000::/402001:1838:6003::/482001:1838:d000::/402001:1838::/322602:f923::/362001:1838:5000::/402001:1838:1500::/402001:1838:9000::/402001:1838:2000::/362001:1838:3000::/402a05:3cc0:1000::/482001:1838:a000::/402001:1838:c000::/402001:1838:1000::/362001:1838:8000::/402607:4440::/482001:1838:2012::/482001:1838:3000::/362001:1838:4000::/362001:1838:7000::/362001:1838:2007::/482001:1838:6000::/36
RPKI-validate all prefixes of AS23352
Contacts
| Role | Name | Handle | Email / phone | Address |
|---|---|---|---|---|
| registrant | DEFT.COM | SL-2063 | 2200 Busse RD, Elk Grove Village, IL, 60007, United States | |
| routing | IPXO Support Team | IST36-ARIN | [email protected], +1 (650) 564-3425 | Ground Floor,4 Victoria Square, St Albans, Hertfordshire, AL1-3TF, United Kingdom |
| routing, administrative, noc, technical | Network Operations | NETWO1779-ARIN | [email protected], +1-312-829-1111 | 2200 Busse Rd, , Elk Grove Village, IL, 60007, United States |
| abuse | Abuse Department | ABUSE1669-ARIN | [email protected], +1-312-829-1111;ext299 | 2200 Busse Rd, Elk Grove Village, IL, 60007, United States |
Raw registry response
{
"endAutnum": 23352,
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-05-14T07:07:40-04:00"
},
{
"eventAction": "registration",
"eventDate": "2021-04-23T04:05:48-04:00"
}
],
"handle": "IST36-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/IST36-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/23352"
},
{
"href": "https://whois.arin.net/rest/poc/IST36-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/23352"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"IPXO Support Team for general queries"
],
"title": "Registration Comments"
}
],
"roles": [
"routing"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "Ground Floor,4 Victoria Square\nSt Albans\nHertfordshire\nAL1-3TF\nUnited Kingdom"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"IPXO Support Team"
],
[
"org",
[],
"text",
"IPXO Limited"
],
[
"kind",
[],
"text",
"group"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1 (650) 564-3425 "
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-05-14T06:13:23-04:00"
},
{
"eventAction": "registration",
"eventDate": "2007-05-17T10:48:06-04:00"
}
],
"handle": "NETWO1779-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/NETWO1779-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/23352"
},
{
"href": "https://whois.arin.net/rest/poc/NETWO1779-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/23352"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"Online support available at: https://portal.deft.com/"
],
"title": "Registration Comments"
}
],
"roles": [
"routing",
"administrative",
"noc",
"technical"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "2200 Busse Rd\n\nElk Grove Village\nIL\n60007\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"Network Operations"
],
[
"org",
[],
"text",
"ServerCentral LLC dba Deft.com"
],
[
"kind",
[],
"text",
"group"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-312-829-1111"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-05-13T16:07:12-04:00"
},
{
"eventAction": "registration",
"eventDate": "2007-05-17T10:30:08-04:00"
}
],
"handle": "ABUSE1669-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/ABUSE1669-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/23352"
},
{
"href": "https://whois.arin.net/rest/poc/ABUSE1669-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/23352"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"Our AUP, DMCA, and Privacy policies can be found here: https://deft.com/legal/"
],
"title": "Registration Comments"
}
],
"roles": [
"abuse"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "2200 Busse Rd\nElk Grove Village\nIL\n60007\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"Abuse Department"
],
[
"org",
[],
"text",
"Deft"
],
[
"kind",
[],
"text",
"group"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-312-829-1111;ext299"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-01-26T14:07:43-05:00"
},
{
"eventAction": "registration",
"eventDate": "2021-06-29T14:01:07-04:00"
}
],
"handle": "SL-2063",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/SL-2063",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/23352"
},
{
"href": "https://whois.arin.net/rest/org/SL-2063",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/23352"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"Geofeed https://summithq.com/as23352.geofeed.txt"
],
"title": "Registration Comments"
}
],
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"DEFT.COM"
],
[
"adr",
{
"label": "2200 Busse RD\nElk Grove Village\nIL\n60007\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
[],
"text",
"org"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2024-11-15T13:01:49-05:00"
},
{
"eventAction": "registration",
"eventDate": "2002-03-05T00:00:00-05:00"
}
],
"handle": "AS23352",
"links": [
{
"href": "https://rdap.arin.net/registry/autnum/23352",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/23352"
},
{
"href": "https://whois.arin.net/rest/asn/AS23352",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/23352"
}
],
"name": "SERVERCENTRAL",
"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/23352"
}
],
"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/23352"
}
],
"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": 23352,
"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.