Autonomous system
AS30243 SPSD
Unclassified ARIN
Summary
Saginaw Public Schools
education k12 network
SPSD is the autonomous system for The School District of the City of Saginaw.
What it's used for
- The space carries the district's internal network operations, identified by the netname
SPSNETand registrant "The School District of the City of Saginaw; Network Operations Center". - The AS announces 4096 IPv4 addresses within a single /20 prefix (216.182.144.0/20) and maintains only 1 observed neighbour, indicating a self-contained educational network rather than a transit provider.
Notable
- The RDAP registrant matches the registry holder exactly, confirming the address space is owned and operated by the school district itself.
- The address inventory consists of a single contiguous block, typical for a municipal or institutional network managing its own infrastructure.
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.
Transit providers
1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS22974 | Charter Communications LLC | 62 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-21, 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 · 4.10K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 1 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS30243- Registry name
- SPSD
- Registrant
- The School District of the City of Saginaw
- Abuse contact
- postmaster@spsd.net
- Registered
- 2006-07-18
- Last changed
- 2012-03-02
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 1 with no ROA
- ROAs
- 0 authorising AS30243
- ASPA
- no ASPA record
- IRR
- 100% registered · 1 of 1 announcements
- Route objects
- 1 naming AS30243
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: 442 networks and 1,779 prefixes, as published 2026-10-22. 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