AS11005 DOWNINGTOWN-AREA-SD

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.