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
AS9821
DOST-PH-AP - Department of Science and Technology Announcing routesAS nameDOST-PH-AP
OrganisationAdvanced Science and Technology Institute
CountryPH
Registry (RIR)APNIC
HandleAS9821
RangeAS9821
Registered04 Sep 2008
Last changed08 Jan 2021
Abuse contact[email protected]
3IPv4 prefixes
1IPv6 prefixes
7Upstreams
14Downstreams
Upstreams
| AS | Network name | Visibility |
|---|---|---|
| AS17639 | CONVERGE-AS - Converge ICT Solutions Inc. | 776 |
| AS9658 | ETPI-IDS-AS-AP - Eastern Telecoms Phils., Inc. | 126 |
| AS24489 | TEIN2-NORTH-AP - Trans-Eurasia Information Network (TEIN2) - North | 62 |
| AS7660 | APAN-JP - Asia Pacific Advanced Network - Japan | 35 |
| AS141682 | AIPL-AS-AP - APIDT Infrastructure Pty Ltd | 3 |
| AS4635 | HKIX-RS1 - Hong Kong Internet Exchange--Route Server 1 | 2 |
| AS23855 | SINGAREN-GIX-AS-AP - Singapore Advanced Research and Education Network | 1 |
Downstreams
| AS | Network name | Visibility |
|---|---|---|
| AS23862 | DILNET-AS-AP - University of the Philippines Diliman | 254 |
| AS45600 | UPM-AS-AP - University of the Philippines, Manila | 166 |
| AS151789 | PNCERT-AS-AP - Philippine National Computer Emergency Response Team | 152 |
| AS135162 | UP-ITDC-NET - eUP-University of the Philippines System | 132 |
| AS133498 | DLSU-AS-AP - De La Salle University | 8 |
| AS134416 | DLS-ZOBEL - De La Salle-Zobel | 7 |
| AS132796 | UPB-AS-AP - University of the Philippines Baguio Campus | 6 |
| AS134414 | DLS-LSGH - De La Salle-Greenhills | 6 |
| AS131253 | DLS-LIPA - De La Salle-Lipa | 5 |
| AS18188 | ATENEO-AS-AP - Ateneo de Manila University | 5 |
| AS45209 | UPLB-AS-AP - University of the Philippines, Los Banos Campus | 5 |
| AS58706 | XAVIER-AS - Xavier School | 5 |
| AS140878 | PNP-AS-AP - Philippine National Police | 3 |
| AS141196 | DICT-AS-AP - DEPARTMENT OF INFORMATION AND COMMUNICATION TECHNOLOGY | 2 |
IPv4 prefixes (3)
IPv6 prefixes (1)
RPKI-validate all prefixes of AS9821
Contacts
| Role | Name | Handle | Email / phone | Address |
|---|---|---|---|---|
| registrant | Advanced Science and Technology Institute | ORG-ASAT1-AP | [email protected], +63-2-4269755, +63-2-4269756 | ASTI Building. Technopark, C.P. Garcia Avenue, U.P.Campus, Diliman |
| technical | Denis F. Villorente | DFV1-AP | [email protected], +63-2-426-9755, +63-2-426-9756 | Advanced Science and Technology Institute, ASTI Bldg., Technopark, C.P. Garcia Ave.,, U.P. Campus, Diliman, Quezon City |
| technical | Bayani Benjamin R. Lara | BBL1-PH | [email protected], +63-2-426-9766, +63-2-426-9756 | ASTI Bldg., C.P. Garcia Ave.,, U.P. Campus, Diliman,, Quezon CIty, PHILIPPINES 1101 |
| abuse | IRT-ASTI-PH | IRT-ASTI-PH | [email protected], [email protected] | Advanced Science and Technology Institute, ASTI Bldg., Technopark, C.P. Garcia Ave.,, U.P. Campus, Diliman, Quezon City |
Raw registry response
{
"rdapConformance": [
"history_version_0",
"nro_rdap_profile_0",
"nro_rdap_profile_asn_hierarchical_0",
"cidr0",
"rdap_level_0"
],
"notices": [
{
"title": "Source",
"description": [
"Objects returned came from source",
"APNIC"
]
},
{
"title": "Terms and Conditions",
"description": [
"This is the APNIC WHOIS Database query service. The objects are in RDAP format."
],
"links": [
{
"value": "https://rdap.apnic.net/autnum/9821",
"rel": "terms-of-service",
"href": "http://www.apnic.net/db/dbcopyright.html",
"type": "text/html"
}
]
},
{
"title": "Whois Inaccuracy Reporting",
"description": [
"If you see inaccuracies in the results, please visit: "
],
"links": [
{
"value": "https://rdap.apnic.net/autnum/9821",
"rel": "inaccuracy-report",
"href": "https://www.apnic.net/manage-ip/using-whois/abuse-and-spamming/invalid-contact-form",
"type": "text/html"
}
]
}
],
"country": "PH",
"name": "DOST-PH-AP",
"status": [
"active"
],
"events": [
{
"eventAction": "registration",
"eventDate": "2008-09-04T06:40:30Z"
},
{
"eventAction": "last changed",
"eventDate": "2021-01-08T06:00:56Z"
}
],
"links": [
{
"value": "https://rdap.apnic.net/autnum/9821",
"rel": "self",
"href": "https://rdap.apnic.net/autnum/9821",
"type": "application/rdap+json"
}
],
"remarks": [
{
"description": [
"Department of Science and Technology",
"AS9821 announcing 202.90.128.0/19"
],
"title": "description"
},
{
"description": [
"ASN used for eBGP with peers of the Philippine Research,",
"Education and Government Information Network"
],
"title": "remarks"
}
],
"entities": [
{
"roles": [
"registrant"
],
"events": [
{
"eventAction": "registration",
"eventDate": "2017-09-08T12:56:22Z"
},
{
"eventAction": "last changed",
"eventDate": "2023-09-05T02:14:47Z"
}
],
"links": [
{
"value": "https://rdap.apnic.net/autnum/9821",
"rel": "self",
"href": "https://rdap.apnic.net/entity/ORG-ASAT1-AP",
"type": "application/rdap+json"
}
],
"handle": "ORG-ASAT1-AP",
"objectClassName": "entity",
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"Advanced Science and Technology Institute"
],
[
"kind",
[],
"text",
"org"
],
[
"adr",
{
"label": "ASTI Building. Technopark\nC.P. Garcia Avenue\nU.P.Campus, Diliman"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+63-2-4269755"
],
[
"tel",
{
"type": "fax"
},
"text",
"+63-2-4269756"
],
[
"email",
[],
"text",
"[email protected]"
]
]
]
},
{
"roles": [
"technical"
],
"events": [
{
"eventAction": "registration",
"eventDate": "2008-09-04T07:29:17Z"
},
{
"eventAction": "last changed",
"eventDate": "2008-09-04T07:29:17Z"
}
],
"links": [
{
"value": "https://rdap.apnic.net/autnum/9821",
"rel": "self",
"href": "https://rdap.apnic.net/entity/DFV1-AP",
"type": "application/rdap+json"
}
],
"handle": "DFV1-AP",
"objectClassName": "entity",
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"Denis F. Villorente"
],
[
"kind",
[],
"text",
"individual"
],
[
"adr",
{
"label": "Advanced Science and Technology Institute\nASTI Bldg., Technopark, C.P. Garcia Ave.,\nU.P. Campus, Diliman, Quezon City"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+63-2-426-9755"
],
[
"tel",
{
"type": "fax"
},
"text",
"+63-2-426-9756"
],
[
"email",
[],
"text",
"[email protected]"
]
]
]
},
{
"roles": [
"technical"
],
"events": [
{
"eventAction": "registration",
"eventDate": "2008-09-04T07:45:46Z"
},
{
"eventAction": "last changed",
"eventDate": "2008-09-04T07:45:46Z"
}
],
"links": [
{
"value": "https://rdap.apnic.net/autnum/9821",
"rel": "self",
"href": "https://rdap.apnic.net/entity/BBL1-PH",
"type": "application/rdap+json"
}
],
"handle": "BBL1-PH",
"objectClassName": "entity",
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"Bayani Benjamin R. Lara"
],
[
"kind",
[],
"text",
"individual"
],
[
"adr",
{
"label": "ASTI Bldg., C.P. Garcia Ave.,\nU.P. Campus, Diliman,\nQuezon CIty\nPHILIPPINES 1101"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+63-2-426-9766"
],
[
"tel",
{
"type": "fax"
},
"text",
"+63-2-426-9756"
],
[
"email",
[],
"text",
"[email protected]"
]
]
]
},
{
"roles": [
"abuse"
],
"events": [
{
"eventAction": "registration",
"eventDate": "2012-11-14T01:29:27Z"
},
{
"eventAction": "last changed",
"eventDate": "2026-06-01T00:10:38Z"
}
],
"links": [
{
"value": "https://rdap.apnic.net/autnum/9821",
"rel": "self",
"href": "https://rdap.apnic.net/entity/IRT-ASTI-PH",
"type": "application/rdap+json"
}
],
"remarks": [
{
"description": [
"[email protected]",
"[email protected]",
"[email protected] was validated on 2026-06-01"
],
"title": "remarks"
}
],
"handle": "IRT-ASTI-PH",
"objectClassName": "entity",
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"IRT-ASTI-PH"
],
[
"kind",
[],
"text",
"group"
],
[
"adr",
{
"label": "Advanced Science and Technology Institute\nASTI Bldg., Technopark, C.P. Garcia Ave.,\nU.P. Campus, Diliman, Quezon City"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"email",
[],
"text",
"[email protected]"
],
[
"email",
{
"pref": "1"
},
"text",
"[email protected]"
]
]
]
}
],
"handle": "AS9821",
"startAutnum": 9821,
"endAutnum": 9821,
"objectClassName": "autnum",
"port43": "whois.apnic.net"
}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.