rirtracker

ASN

AS231

This network elsewhere: its routes on BGP Report

Now

ARIN statistics
Assigned (dated 2021-06-28) (US), in the latest file
Registry
ARIN
Holder
Michigan State University MISU
From
RDAP, looked up 2026-11-07 18:23 UTC

Latest change

+ Add Intra-ARIN transfer

Reported
2021-06-28 (ARIN)
Confidence
Confirmed
Inventory
No effect on ARIN applicant inventory

Timeline (1)

Every change the tracker has found, newest first. It covers ARIN from 2008-12-01, the RIPE NCC from 2010-04-23, APNIC from 2008-02-15, LACNIC from 2012-06-29 and AFRINIC from 2012-10-03.

2021-06-28 ARIN + Add Intra-ARIN transfer Confirmed
ARIN-Issued
Add AS231
From
Merit Network Inc. ARIN
To
Michigan State University ARIN
Inventory
No effect on ARIN applicant inventory

ARIN's transfer log records a transfer from Merit Network Inc. (ARIN) to Michigan State University (ARIN) on 2021-06-28 14:56 UTC. ARIN-Issued lists it as "Add" because the registration changed hands; it is not a new allocation from ARIN.

Evidence (4) · classifier 1.4.0,
  1. ARIN-Issued ARIN-Issued report for 2021-06-28: "Add AS231" source · retrieved
  2. Transfer log Transfer log: RESOURCE_TRANSFER on 2021-06-28 14:56 UTC, Merit Network Inc. (ARIN) to Michigan State University (ARIN); resources moved: AS231 source · retrieved
  3. Before ARIN delegated statistics 2021-06-27 (produced 2021-06-27T14:00:13+00:00), before the report: assigned (dated 1988-09-12) source · retrieved
  4. After ARIN delegated statistics 2021-06-29 (produced 2021-06-29T14:00:13+00:00), after the report: assigned (dated 2021-06-28) source · retrieved
Classification history for this change (4 versions)
  1. : Intra-ARIN transfer, confirmed (classifier 1.3.0)
  2. : Intra-ARIN transfer, confirmed (classifier 1.3.1)
  3. : Intra-ARIN transfer, confirmed (classifier 1.3.2)
  4. : Intra-ARIN transfer, confirmed (classifier 1.4.0) current

Transfer records (1)

Date (UTC)LogTypeRange movedFromTo
ARINResource transferAS231 Merit Network Inc. ARINMichigan State University ARIN

Every record in the ARIN, RIPE NCC, APNIC, LACNIC and AFRINIC transfer logs that moved any part of this ASN (ARIN's from 2009, the RIPE NCC's from 2012, APNIC's from 2010, LACNIC's from 2016, AFRINIC's from 2018). A transfer between two registries is in both logs.

RDAP lookups

Looked upWhyRegistryHandleOrganizationStatusLast changed
Watch list ARINAS231Michigan State University MISUactive2021-06-28
Watch list ARINAS231Michigan State University MISUactive2021-06-28
Watch list ARINAS231Michigan State University MISUactive2021-06-28
Watch list ARINAS231Michigan State University MISUactive2021-06-28
Watch list ARINAS231Michigan State University MISUactive2021-06-28
Watch list ARINAS231Michigan State University MISUactive2021-06-28
Watch list ARINAS231Michigan State University MISUactive2021-06-28

Organization-level details only; contact details are never kept. RDAP shows the registration when it was looked up, not in the past.

This page as data: asn/231.json