Autonomous system
AS26557 CARLET-NET
Unclassified ARIN
Summary
Carleton College
education campus ipv4 us
The AS handle CARLET-NET is operated by Carleton College.
What it's used for
- The address space carries the institutional network for Carleton College, a private liberal arts college in Northfield, Minnesota.
- The inventory consists of four IPv4 /19 prefixes (137.22.0.0/19, 137.22.64.0/19, 137.22.128.0/19, 137.22.192.0/19) totaling 32,768 addresses, with no IPv6 prefixes announced.
- With only 2 observed neighbours, the low neighbour count relative to the address block size indicates an access or eyeball network rather than a transit provider.
Notable
- All registrants for the announced prefixes are listed as Carleton College, with the netname consistently set to CARLETON.
- The address inventory is finely subdivided into four equal /19 blocks, suggesting internal segmentation of the campus network.
- The AS has been visible in routing tables since 2002.
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 2026-10-31, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 3 prefixes · 24.58K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 3 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS26557- Registry name
- CARLET-NET
- Registrant
- Carleton College
- Abuse contact
- abuse@carleton.edu
- Registered
- 2002-10-17
- Last changed
- 2012-03-02
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 4 with no ROA
- ROAs
- 0 authorising AS26557
- ASPA
- no ASPA record
- IRR
- 75% registered · 3 of 4 announcements
- Route objects
- 3 naming AS26557
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: 447 networks and 1,843 prefixes, as published 2026-11-01. 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