AS9821 — DOST-PH-AP Department of Science and Technology

Network type: education

AS9821 announces 2 IPv4 prefixes covering 9,216 addresses and 1 IPv6 prefixes.

About this network

AS9821 (DOST-PH-AP) is held by the Philippines' Department of Science and Technology, and is operated by its Advanced Science and Technology Institute (DOST-ASTI) as PREGINET — the Philippine Research, Education and Government Information Network, the country's only national research and education network.

What it's used for

PREGINET interconnects Philippine universities, research institutes and government agencies, and links them onward to the international REN community — APAN, the AI3 satellite network and TEIN. RIS sees a compact inventory: 3 IPv4 prefixes carrying 9,216 addresses (202.90.128.0/19 plus a /22 and a /24) and one IPv6 /32, 2001:d18::/32. What makes the AS distinctive is the 35 observed BGP neighbours against that small address count. An enterprise or agency network with 9,000 addresses would show two or three. Thirty-five means this network exists to interconnect rather than to serve subscribers — exactly what an NREN does, and what happens when you sit in the middle of a national exchange fabric.

Notable

• DOST-ASTI also operates PHOpenIX, the Philippines' neutral internet exchange, which is where much of that peering breadth comes from. The AS is the REN, not the exchange itself, but the two are run by the same institute.
• IPv6 is native and long-standing here, including multicast support — unusually mature for a network of this size, and characteristic of an R&E network that runs protocols ahead of the commercial market.
• Both government and academic traffic ride the same AS, which is why the registry names the parent department rather than the network brand.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 103.80.140.0/22
• 202.90.128.0/19
• 2001:d18::/32

Upstream networks

• AS17639 Converge ICT Solutions Inc.
• AS9658 Eastern Telecoms Phils., Inc.
• AS7660 Asia Pacific Advanced Network - Japan
• AS23855 Singapore Advanced Research and Education Network
• AS24482 SG.GS
• AS38001 NewMedia Express Pte Ltd
• AS4635 Hong Kong Internet Exchange--Route Server 1
• AS61292 Blix Group AS

Downstream networks

• AS23862 University of the Philippines Diliman
• AS45600 University of the Philippines, Manila
• AS151789 Philippine National Computer Emergency Response Team
• AS135162 eUP-University of the Philippines System
• AS141196 DEPARTMENT OF INFORMATION AND COMMUNICATION TECHNOLOGY
• AS133498 De La Salle University
• AS18188 Ateneo de Manila University
• AS140878 Philippine National Police
• AS132796 University of the Philippines Baguio Campus
• AS131253 De La Salle-Lipa
• AS134414 De La Salle-Greenhills
• AS134416 De La Salle-Zobel
• AS45209 University of the Philippines, Los Banos Campus
• AS58706 Xavier School

Adjacent networks

• AS17639 Converge ICT Solutions Inc.
• AS23862 University of the Philippines Diliman
• AS7660 Asia Pacific Advanced Network - Japan
• AS45600 University of the Philippines, Manila
• AS151789 Philippine National Computer Emergency Response Team
• AS9658 Eastern Telecoms Phils., Inc.
• AS135162 eUP-University of the Philippines System
• AS141196 DEPARTMENT OF INFORMATION AND COMMUNICATION TECHNOLOGY
• AS133498 De La Salle University
• AS24489 Trans-Eurasia Information Network (TEIN2) - North
• AS18188 Ateneo de Manila University
• AS140878 Philippine National Police
• AS132796 University of the Philippines Baguio Campus
• AS134416 De La Salle-Zobel
• AS134414 De La Salle-Greenhills
• AS131253 De La Salle-Lipa
• AS45209 University of the Philippines, Los Banos Campus
• AS58706 Xavier School
• AS23855 Singapore Advanced Research and Education Network
• AS24482 SG.GS
• AS38001 NewMedia Express Pte Ltd
• AS4635 Hong Kong Internet Exchange--Route Server 1
• AS61292 Blix Group AS

Internet exchanges

• Hong Kong Internet Exchange — Hong Kong, China
• Singapore Internet Exchange — Singapore, Singapore