Empower Your Security Tools Instantly with Our ASN Lookup API
Use autonomous system number lookup to enhance your security with detailed network information, routing data, ASN WHOIS records, peer relationships, and more.
curl --location --request GET https://api.whoisfreaks.com/v2.0/asn-whois?apiKey=API_KEY&asn=as56554[
{
"asNumber": "19231",
"asName": "NBCUNI",
"orgName": "NBCUniversal",
"description": "",
"orgHandle": "nbcun-5",
"country": "US",
"domain": "nbcuni.com",
"website": "",
"allocationStatus": "",
"numOfIPv4Routes": "5",
"numOfIPv6Routes": "0",
"whoisHost": "ARIN",
"dateAllocated": "2020-07-10T00:00",
"type": "BUSINESS",
"routeObjects": [
{
"route": "50.203.232.0/24",
"origin": "AS19231",
"originName": "NBCUniversal",
"isp": "Comcast Cable Communications, LLC",
"numberOfIps": 256
},
{
"route": "208.73.112.0/24",
"origin": "AS19231",
"originName": "NBCUniversal",
"isp": "NBCUniversal",
"numberOfIps": 256
},
{
"route": "208.73.115.0/24",
"origin": "AS19231",
"originName": "NBCUniversal",
"isp": "NBCUniversal",
"numberOfIps": 256
},
{
"route": "208.73.114.0/24",
"origin": "AS19231",
"originName": "NBCUniversal",
"isp": "NBCUniversal",
"numberOfIps": 256
},
{
"route": "173.213.210.0/24",
"origin": "AS19231",
"originName": "NBCUniversal",
"isp": "NBCUniversal",
"numberOfIps": 256
}
],
"whoisResponse": "\n#\n# ARIN WHOIS data and services are subject to the Terms of Use\n# available at: https://www.arin.net/resources/registry/whois/tou/\n#\n# If you see inaccuracies in the results, please report at\n# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/\n#\n# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.\n#\n\n\nASNumber: 19231\nASName: NBCUNI\nASHandle: AS19231\nRegDate: 2006-12-13\nUpdated: 2020-07-10 \nRef: https://rdap.arin.net/registry/autnum/19231\n\n\nOrgName: NBCUniversal\nOrgId: NBCUN-5\nAddress: 30 ROCKEFELLER CENTER\nCity: NEW YORK\nStateProv: NY\nPostalCode: 10112\nCountry: US\nRegDate: 2006-12-11\nUpdated: 2025-01-21\nRef: https://rdap.arin.net/registry/entity/NBCUN-5\n\n\nOrgAbuseHandle: INFOS6-ARIN\nOrgAbuseName: InfoSec\nOrgAbusePhone: +1-212-664-4444 \nOrgAbuseEmail: [email protected]\nOrgAbuseRef: https://rdap.arin.net/registry/entity/INFOS6-ARIN\n\nOrgNOCHandle: NBCUO-ARIN\nOrgNOCName: NBCUO-ARIN\nOrgNOCPhone: +1-818-777-9673 \nOrgNOCEmail: [email protected]\nOrgNOCRef: https://rdap.arin.net/registry/entity/NBCUO-ARIN\n\nOrgTechHandle: NBCUT-ARIN\nOrgTechName: NBCU Technical\nOrgTechPhone: +1-818-777-9673 \nOrgTechEmail: [email protected]\nOrgTechRef: https://rdap.arin.net/registry/entity/NBCUT-ARIN\n\nRAbuseHandle: NBCUA-ARIN\nRAbuseName: NBCU Admin\nRAbusePhone: +1-818-777-9673 \nRAbuseEmail: [email protected]\nRAbuseRef: https://rdap.arin.net/registry/entity/NBCUA-ARIN\n\nRNOCHandle: NBCUA-ARIN\nRNOCName: NBCU Admin\nRNOCPhone: +1-818-777-9673 \nRNOCEmail: [email protected]\nRNOCRef: https://rdap.arin.net/registry/entity/NBCUA-ARIN\n\nRTechHandle: NBCUT-ARIN\nRTechName: NBCU Technical\nRTechPhone: +1-818-777-9673 \nRTechEmail: [email protected]\nRTechRef: https://rdap.arin.net/registry/entity/NBCUT-ARIN\n\n\n#\n# ARIN WHOIS data and services are subject to the Terms of Use\n# available at: https://www.arin.net/resources/registry/whois/tou/\n#\n# If you see inaccuracies in the results, please report at\n# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/\n#\n# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.\n#\n",
"downstreams": [],
"parsedWhoisResponse": {
"status": true,
"whois_server": "whois.arin.net",
"aut_nums": [
{
"aut_num": "19231",
"as_handle": "AS19231",
"as_name": "NBCUNI",
"tech_contacts": [
"NBCUT-ARIN",
"NBCUT-ARIN"
],
"abuse_contacts": [
"INFOS6-ARIN",
"NBCUA-ARIN"
],
"date_created": "2006-12-13",
"date_updated": "2020-07-10",
"source": "https://rdap.arin.net/registry/autnum/19231"
}
],
"organization": {
"handle": "NBCUN-5",
"name": "NBCUniversal",
"address": [
"30 ROCKEFELLER CENTER",
"NEW YORK",
"NY",
"10112",
"US"
],
"city": "New York",
"state": "NY",
"zip_code": "10112",
"country": [
"US"
],
"date_created": "2006-12-11",
"date_updated": "2025-01-21",
"source": "https://rdap.arin.net/registry/entity/NBCUN-5",
"addressCountry": "US"
},
"technical_contacts": [
{
"handle": "NBCUT-ARIN",
"name": "NBCU Technical",
"email": [
"[email protected]"
],
"phone": [
"+1-818-777-9673"
],
"source": "https://rdap.arin.net/registry/entity/NBCUT-ARIN"
}
],
"abuse_contacts": [
{
"handle": "INFOS6-ARIN",
"name": "InfoSec",
"email": [
"[email protected]"
],
"phone": [
"+1-212-664-4444"
],
"source": "https://rdap.arin.net/registry/entity/INFOS6-ARIN"
},
{
"handle": "NBCUA-ARIN",
"name": "NBCU Admin",
"email": [
"[email protected]"
],
"phone": [
"+1-818-777-9673"
],
"source": "https://rdap.arin.net/registry/entity/NBCUA-ARIN"
}
]
},
"upstreams": [
{
"asNumber": "AS286",
"description": "GTT Communications Inc.",
"country": "US"
},
{
"asNumber": "AS3257",
"description": "GTT Communications Inc.",
"country": "US"
},
{
"asNumber": "AS7922",
"description": "Comcast Cable Communications, LLC",
"country": "US"
}
],
"peers": [
{
"asNumber": "AS286",
"description": "GTT Communications Inc.",
"country": "NL"
},
{
"asNumber": "AS286",
"description": "GTT Communications Inc.",
"country": "US"
},
{
"asNumber": "AS3257",
"description": "GTT Communications Inc.",
"country": "US"
},
{
"asNumber": "AS7922",
"description": "Comcast Cable Communications, LLC",
"country": "US"
}
],
"contacts": {
"emailContacts": [
"[email protected]",
"[email protected]"
],
"abuseContacts": []
},
"legacyRoutes": []
}
]
- 1528+TLDs
- 693M+Active Domains
- 888M+Domains Tracked
- 3665M+WHOIS Records
- 5103M+Host Names
- 14B+DNS Records
