Whois & RDAP Lookup
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IP Geolocation RDAPIP Range199.96.56.0 - 199.96.63.255
HandleNET-199-96-56-0-1
NameTWITTER-NETWORK
TypeDIRECT ALLOCATION
HolderTwitter Inc.
Registered2012-02-01 22:20 UTC
Updated2020-06-28 17:49 UTC
RegistrantTwitter Inc.
Address1355 Market Street
, Suite 900, San Francisco, CA, 94103, United States
Admin ContactNetwork Operations
Email[email protected]
Phone+1-415-222-9670
Address1355 Market St
, Flr 9, San Francisco, CA, 94103, United States
Tech ContactWilliam Fenech
Email[email protected]
Phone+1-415-222-9670
Address1355 Market Street, Suite 900, San Francisco, CA, 94103, United States
Abuse Contact[email protected]
Abuse Phone+1-415-222-9670
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: 199.96.56.0 - 199.96.63.255 CIDR: 199.96.56.0/21 NetName: TWITTER-NETWORK NetHandle: NET-199-96-56-0-1 Parent: NET199 (NET-199-0-0-0-0) NetType: Direct Allocation OriginAS: Organization: Twitter Inc. (TWITT) RegDate: 2012-02-01 Updated: 2020-06-28 Ref: https://rdap.arin.net/registry/ip/199.96.56.0 OrgName: Twitter Inc. OrgId: TWITT Address: 1355 Market Street Address: Suite 900 City: San Francisco StateProv: CA PostalCode: 94103 Country: US RegDate: 2010-03-08 Updated: 2026-06-24 Ref: https://rdap.arin.net/registry/entity/TWITT OrgNOCHandle: NETWO3685-ARIN OrgNOCName: Network Operations OrgNOCPhone: +1-415-222-9670 OrgNOCEmail: [email protected] OrgNOCRef: https://rdap.arin.net/registry/entity/NETWO3685-ARIN OrgAbuseHandle: TNA33-ARIN OrgAbuseName: Twitter Network Abuse OrgAbusePhone: +1-415-222-9670 OrgAbuseEmail: [email protected] OrgAbuseRef: https://rdap.arin.net/registry/entity/TNA33-ARIN OrgTechHandle: NETWO3685-ARIN OrgTechName: Network Operations OrgTechPhone: +1-415-222-9670 OrgTechEmail: [email protected] OrgTechRef: https://rdap.arin.net/registry/entity/NETWO3685-ARIN OrgTechHandle: FENEC5-ARIN OrgTechName: Fenech, William OrgTechPhone: +1-415-222-9670 OrgTechEmail: [email protected] OrgTechRef: https://rdap.arin.net/registry/entity/FENEC5-ARIN RNOCHandle: NETWO3685-ARIN RNOCName: Network Operations RNOCPhone: +1-415-222-9670 RNOCEmail: [email protected] RNOCRef: https://rdap.arin.net/registry/entity/NETWO3685-ARIN RTechHandle: NETWO3685-ARIN RTechName: Network Operations RTechPhone: +1-415-222-9670 RTechEmail: [email protected] RTechRef: https://rdap.arin.net/registry/entity/NETWO3685-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: 494 msec % WHEN: Wed Jul 29 02:12:19 UTC 2026
Raw RDAP JSON (registry) https://rdap.arin.net
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],
"handle": "TNA33-ARIN",
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"events": [
{
"eventAction": "last changed",
"eventDate": "2020-06-28T13:49:14-04:00"
},
{
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"eventDate": "2012-02-01T17:20:49-05:00"
}
],
"handle": "NET-199-96-56-0-1",
"ipVersion": "v4",
"links": [
{
"href": "https://rdap.arin.net/registry/ip/199.96.56.0",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/199.96.61.1"
},
{
"href": "https://whois.arin.net/rest/net/NET-199-96-56-0-1",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/199.96.61.1"
}
],
"name": "TWITTER-NETWORK",
"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/199.96.61.1"
}
],
"title": "Terms of Service"
},
{
"description": [
"If you see inaccuracies in the results, please visit: "
],
"links": [
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"href": "https://www.arin.net/resources/registry/whois/inaccuracy_reporting/",
"rel": "inaccuracy-report",
"type": "text/html",
"value": "https://rdap.arin.net/registry/ip/199.96.61.1"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "ip network",
"parentHandle": "NET-199-0-0-0-0",
"port43": "whois.arin.net",
"rdapConformance": [
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],
"startAddress": "199.96.56.0",
"status": [
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],
"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.