asn.dev

Autonomous system

AS35874 KRESA-ASN - Kalamazoo RESA

Unclassified ARIN

IPv4 addresses 3.84K 6 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

Kalamazoo RESA

United States of America · AI-generated

education regional k12 network

KRESA-ASN is the autonomous system for Kalamazoo RESA, a regional educational service agency in Michigan.

What it's used for

  • The address space carries the agency's internal network, evidenced by reverse DNS records pointing to kresanet.org and netnames like KALAMAZOO-REGIONAL-EDUCATIONAL-SERVICE-AGENCY.
  • The AS announces 3840 IPv4 addresses across 6 prefixes with only 2 observed neighbours, indicating a small, self-contained network serving the agency's specific infrastructure rather than providing transit.

Notable

  • All registrants for the announced prefixes are listed as Kalamazoo RESA; NETOPS, which aligns perfectly with the AS holder.
  • The address inventory consists of six distinct IPv4 blocks within the 69.58.0.0/16 range, including two /22s, three /23s, and one /24, with no IPv6 prefixes in the inventory.

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

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

2 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS401307Michigan Statewide Educational Network930
AS19653CTS Communications Corp45

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-11, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 6 prefixes · 3.84K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America6

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS35874
Registry name
KRESA-ASN
Registrant
Kalamazoo RESA
Abuse contact
networkteam@kresa.org
Registered
2005-03-31
Last changed
2019-02-26
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 15 valid, 0 with no ROA
ROAs
15 authorising AS35874
ASPA
no ASPA record
IRR
100% registered · 15 of 15 announcements
Route objects
15 naming AS35874

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: 453 networks and 1,846 prefixes, as published 2026-11-11. 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

Cross-check