Autonomous system
AS11005 DOWNINGTOWN-AREA-SD
Education ARIN
Summary
Downingtown Area School District
education government legacy
DOWNINGTOWN-AREA-SD belongs to the Downingtown Area School District, a public K-12 district in Chester County, Pennsylvania. ARIN registers the ASN to the district at 540 Trestle Place, Downingtown. It is one of the larger districts in the state, running elementary, middle and high schools plus a STEM magnet high school.
What it's used for
A single-prefix school-district network. RIS sees 1 announced IPv4 prefix, 204.108.212.0/24, carrying 256 addresses, no IPv6, and 2 observed neighbours. The two neighbours are the interesting part: a lone /24 with more than one upstream is the signature of an organisation that took an AS number specifically so it could multi-home. For a district that now depends on the network for classroom instruction, testing and student information systems, a second path matters more than a second /24 would. The space carries district infrastructure and school connectivity, not commercial hosting and not subscribers.
Notable
The announced prefix registers to DASD-ORG, the district's own handle, matching the AS holder. Holder, registrant and announcer are the same body, with nothing third-party in the inventory.
Interesting
The low AS number is misleading. ARIN created the district's org record in December 2022 and registered the ASN in January 2023, so AS11005 is a recycled number reissued to Downingtown rather than a survivor of the early commercial internet. Low-numbered ASNs are not reliably old ASNs once a registry starts returning abandoned numbers to the pool.
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
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-30, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 1 prefixes · 256 addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 1 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS11005- Registry name
- DOWNINGTOWN-AREA-SD
- Registrant
- Downingtown Area School District
- Abuse contact
- mbalik@dasd.org
- Registered
- 2023-01-24
- Last changed
- 2023-01-24
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 100% valid · 1 valid, 0 with no ROA
- ROAs
- 1 authorising AS11005
- ASPA
- 2 declared providers
- IRR
- 100% registered · 1 of 1 announcements
- Route objects
- 1 naming AS11005
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: 447 networks and 1,849 prefixes, as published 2026-10-30. 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