Whois & RDAP Lookup
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RDAPIP Range131.143.140.0 - 131.143.143.255
HandleNET-131-143-140-0-1
NameOPTIMA
TypeDIRECT ALLOCATION
HolderOptimaTech Wave LLC
Registered2025-10-07 16:21 UTC
Updated2025-10-07 16:21 UTC
RegistrantOptimaTech Wave LLC
Address2215 E Rosebrier St, Springfield, MO, 65804, Thailand
Admin ContactRichard Frech
Email[email protected]
Phone+1-806-502-3023
Address2215 E Rosebrier St, Springfield, MO, 65804, United States
Tech ContactRichard Frech
Email[email protected]
Phone+1-806-502-3023
Address2215 E Rosebrier St, Springfield, MO, 65804, United States
Abuse Contact[email protected]
Abuse Phone+1-806-502-3023
Statusactive
Registry RDAPhttps://rdap.arin.net
Raw WHOIS response
# # ARIN WHOIS data and services are subject to the Terms of Use # available at: https://www.arin.net/resources/registry/whois/tou/ # # If you see inaccuracies in the results, please report at # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/ # # Copyright 1997-2026, American Registry for Internet Numbers, Ltd. # NetRange: 131.143.140.0 - 131.143.143.255 CIDR: 131.143.140.0/22 NetName: OPTIMA NetHandle: NET-131-143-140-0-1 Parent: NET131 (NET-131-0-0-0-0) NetType: Direct Allocation OriginAS: Organization: OptimaTech Wave LLC (OWL-38) RegDate: 2025-10-07 Updated: 2025-10-07 Ref: https://rdap.arin.net/registry/ip/131.143.140.0 OrgName: OptimaTech Wave LLC OrgId: OWL-38 Address: 2215 E Rosebrier St City: Springfield StateProv: MO PostalCode: 65804 Country: TH RegDate: 2024-04-25 Updated: 2026-02-04 Ref: https://rdap.arin.net/registry/entity/OWL-38 OrgAbuseHandle: FRECH9-ARIN OrgAbuseName: Frech, Richard OrgAbusePhone: +1-806-502-3023 OrgAbuseEmail: [email protected] OrgAbuseRef: https://rdap.arin.net/registry/entity/FRECH9-ARIN OrgTechHandle: FRECH9-ARIN OrgTechName: Frech, Richard OrgTechPhone: +1-806-502-3023 OrgTechEmail: [email protected] OrgTechRef: https://rdap.arin.net/registry/entity/FRECH9-ARIN # # ARIN WHOIS data and services are subject to the Terms of Use # available at: https://www.arin.net/resources/registry/whois/tou/ # # If you see inaccuracies in the results, please report at # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/ # # Copyright 1997-2026, American Registry for Internet Numbers, Ltd. # % Query time: 522 msec % WHEN: Thu Jul 30 03:31:53 UTC 2026
Raw RDAP JSON (registry) https://rdap.arin.net
{
"arin_originas0_originautnums": [],
"cidr0_cidrs": [
{
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"v4prefix": "131.143.140.0"
}
],
"endAddress": "131.143.143.255",
"entities": [
{
"entities": [
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"events": [
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"eventAction": "last changed",
"eventDate": "2026-02-04T06:23:18-05:00"
},
{
"eventAction": "registration",
"eventDate": "2026-02-04T06:23:18-05:00"
}
],
"handle": "FRECH9-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/FRECH9-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/131.143.141.0/24"
},
{
"href": "https://whois.arin.net/rest/poc/FRECH9-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/131.143.141.0/24"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
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"administrative",
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],
"status": [
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"vcardArray": [
"vcard",
[
[
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{},
"text",
"4.0"
],
[
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{
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},
"text",
[
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[
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{},
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[
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[
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},
"text",
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]
]
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}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-02-04T06:26:23-05:00"
},
{
"eventAction": "registration",
"eventDate": "2024-04-25T02:32:00-04:00"
}
],
"handle": "OWL-38",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/OWL-38",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/131.143.141.0/24"
},
{
"href": "https://whois.arin.net/rest/org/OWL-38",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/131.143.141.0/24"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
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{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"OptimaTech Wave LLC"
],
[
"adr",
{
"label": "2215 E Rosebrier St\nSpringfield\nMO\n65804\nThailand"
},
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],
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-10-07T12:21:33-04:00"
},
{
"eventAction": "registration",
"eventDate": "2025-10-07T12:21:33-04:00"
}
],
"handle": "NET-131-143-140-0-1",
"ipVersion": "v4",
"links": [
{
"href": "https://rdap.arin.net/registry/ip/131.143.140.0",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/131.143.141.0/24"
},
{
"href": "https://whois.arin.net/rest/net/NET-131-143-140-0-1",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/131.143.141.0/24"
}
],
"name": "OPTIMA",
"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/ip/131.143.141.0/24"
}
],
"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/ip/131.143.141.0/24"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "ip network",
"parentHandle": "NET-131-0-0-0-0",
"port43": "whois.arin.net",
"rdapConformance": [
"nro_rdap_profile_0",
"rdap_level_0",
"cidr0",
"arin_originas0"
],
"startAddress": "131.143.140.0",
"status": [
"active"
],
"type": "DIRECT ALLOCATION"
}Frequently asked questions
What is WHOIS?
WHOIS is a public directory that answers "who is responsible for this?" for domains, IP ranges and ASNs. It lists registration dates, the registrar, nameservers and contacts.
What is RDAP, and how does it differ?
RDAP is the modern replacement for WHOIS. It returns the same records in a structured, consistent format. We query RDAP first and fall back to classic WHOIS text when a registry has not adopted it yet.
What is the difference between a registrar and a registrant?
The registrar is the company you register and manage a domain through, such as xTom or GoDaddy. The registrant is the person or organization that actually holds the domain.
What are nameservers?
Nameservers answer DNS questions for a domain and decide which IP addresses the name resolves to. They also show which DNS provider the domain uses.
What is DNSSEC?
DNSSEC adds cryptographic signatures to DNS answers so they cannot be quietly altered in transit. "Signed" means the domain has it enabled, "unsigned" means it does not.
Why is the contact information redacted?
Privacy laws such as GDPR require registrars to hide most personal details in public records. The abuse contact is usually still shown, so a domain or network can be reported when something goes wrong.