Autonomous system
AS42 WOODYNET-1
Unclassified ARIN Educational/Research
Summary
WoodyNet / Packet Clearing House
research legacy
An early low-numbered allocation (WOODYNET-1) belonging to WoodyNet, Inc., the organization behind Packet Clearing House (PCH), which supports critical internet infrastructure worldwide.
What it's used for
- Operational support for Internet exchange points and core DNS infrastructure, including anycast name-server and route-collector services.
Notable
- A research and infrastructure network, not a commercial hosting or transit product.
- AS42 is a well-known number in networking circles, fitting for an organization central to internet operations.
Interesting
- PCH's Bill Woodcock is credited with developing the anycast routing technique in 1989, now used throughout CDNs and the DNS.
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 351 exchanges in 138 countries, largest first.
| Exchange | Location | Their address |
|---|---|---|
| IX.br (PTT.br) São Paulo | São Paulo, Brazil | 187.16.216.77 |
| OpenIXP Internet exchange Point | Jakarta, Indonesia | 218.100.36.96 |
| 4b42 Internet Exchange Point | Zurich, Switzerland | 185.1.125.142 |
| DE-CIX Frankfurt | Frankfurt, Germany | 80.81.194.42 |
| Indonesian Internet Exchange (IIX-Jakarta) | Jakarta, Indonesia | 123.108.9.18 |
| LINX LON1 | London, United Kingdom | 195.66.225.238 |
| AMS-IX Amsterdam | Amsterdam, Netherlands | 80.249.208.250 |
| Rotterdam Internet eXchange | Rotterdam, Netherlands | 91.194.218.18 |
Transit providers
118 upstream, 9 downstream and 181 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-11, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 88 prefixes · 54.02K addresses IPv6 95 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 183 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS42- Registry name
- WOODYNET-1
- Registrant
- WoodyNet, Inc.
- Abuse contact
- woody@pch.net
- Registered
- 2001-05-16
- Last changed
- 2012-03-02
- Allocation
- assigned
Declared
PeeringDB profile
- Name
- PCH AS42
- Also known as
- Woodynet, PCH
- Network type
- Educational/Research
- Scope
- Global
- Traffic ratio
- Balanced
- Peering policy
- Open
- IRR as-set
RADB::AS-PCH- Present at
- 335 exchanges
- Facilities
- 56 facilities
- Website
- http://www.pch.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
- 99.3% valid · 405 valid, 3 with no ROA
- ROAs
- 64 authorising AS42
- ASPA
- no ASPA record
- IRR
- 99% registered · 402 of 408 announcements 1 other origin
- Route objects
- 593 naming AS42
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
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: 432 networks and 1,768 prefixes, as published 2026-10-12. 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