Autonomous system
AS9821 DOST-PH-AP Department of Science and Technology
Education APNIC Educational/Research
Summary
PREGINET (DOST-ASTI)
legacy research education government
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. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
Recorded at 2 exchanges in 2 countries, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Hong Kong Internet Exchange | Hong Kong, China | 123.255.91.252 |
| Singapore Internet Exchange | Singapore, Singapore | 103.16.102.185 |
Transit providers
9 upstream, 14 downstream and 32 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS17639 | Converge ICT Solutions Inc. | 177 |
| AS9658 | Eastern Telecoms Phils., Inc. | 26 |
| AS7660 | Asia Pacific Advanced Network - Japan | 12 |
| AS23855 | Singapore Advanced Research and Education Network | 4 |
| AS24482 | SG.GS | 4 |
| AS37989 | DCS1 Pte. Ltd. | 4 |
| AS38001 | NewMedia Express Pte Ltd | 3 |
| AS4635 | Hong Kong Internet Exchange--Route Server 1 | 2 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 5 prefixes · 9.22K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| PH | Philippines | 6 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS9821- Registry name
- DOST-PH-AP
- Registrant
- Advanced Science and Technology Institute
- Abuse contact
- tech-ops@pregi.net
- Registered
- 2008-09-04
- Last changed
- 2021-01-08
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- PREGINET
- Also known as
- Philippine Research, Education and Government Information Network
- Network type
- Educational/Research
- Scope
- Asia Pacific
- Traffic ratio
- Mostly Inbound
- Peering policy
- Open
- Present at
- 1 exchanges
- Website
- http://www.pregi.net
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- RPKI
- 100% valid · 4 valid, 0 with no ROA
- ROAs
- 6 authorising AS9821
- ASPA
- no ASPA record
- IRR
- 100% registered · 4 of 4 announcements
- Route objects
- 76 naming AS9821
Reputation
Classification and threat
Education University, school or national research and education network.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,771 prefixes, as published 2026-10-15. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere