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.
2023-05-31ARINTransfer logMerger/acquisition or reorganizationConfirmed
Transfer log
Merger/acquisition: SDC Internet (ARIN) to SDC Internet (ARIN)
From
SDC Internet ARIN
To
SDC Internet ARIN
Inventory
No effect on ARIN applicant inventory
ARIN's transfer log records a merger, acquisition or reorganization from SDC Internet (ARIN) to SDC Internet (ARIN) on 2023-05-31 21:28 UTC. The registration changed hands; it is not a new allocation from ARIN. ARIN-Issued and ARIN's statistics don't show this change; only the transfer log records it.
Evidence (3) · classifier 1.4.0,
Transfer logTransfer log: MERGER_ACQUISITION on 2023-05-31 21:28 UTC, SDC Internet (ARIN) to SDC Internet (ARIN); resources moved: 172.84.155.0/24source · retrieved
BeforeARIN delegated statistics 2023-05-30 (produced 2023-05-30T13:00:11+00:00), before the report: allocated (dated 2018-01-13)source · retrieved
AfterARIN delegated statistics 2023-06-01 (produced 2023-06-01T13:00:12+00:00), after the report: allocated (dated 2018-01-13)source · retrieved
2018-01-13ARIN+ AddApparent new issuanceStrong inference
ARIN-Issued
Add 172.84.155.0-172.84.155.255
Inventory
Likely issued from ARIN-controlled inventory
No transfer record matches. ARIN's statistics show it reserved on 2018-01-12 and allocated (dated 2018-01-13) on 2018-01-14. It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN.
Evidence (3) · classifier 1.4.0,
ARIN-IssuedARIN-Issued report for 2018-01-13: "Add 172.84.155.0-172.84.155.255"source · retrieved
BeforeARIN delegated statistics 2018-01-12 (produced 2018-01-12T06:09:18+00:00), before the report: reservedsource · retrieved
AfterARIN delegated statistics 2018-01-14 (produced 2018-01-14T06:10:46+00:00), after the report: allocated (dated 2018-01-13)source · retrieved
Classification history for this change (4 versions)
: Apparent new issuance, strong inference (classifier 1.3.2)
: Apparent new issuance, strong inference (classifier 1.4.0) current
2018-01-13ARIN− RemoveChange to ARIN's own pool recordStrong inference
ARIN-Issued
Remove 172.84.155.0-172.84.155.255
Inventory
Part of the issuance reported the same day
ARIN's statistics show it reserved on 2018-01-12 and allocated (dated 2018-01-13) on 2018-01-14. ARIN removed its own pool record for this range as part of issuing it: the same report adds 172.84.155.0-172.84.155.255. The issuance is explained on that line.
Evidence (3) · classifier 1.4.0,
ARIN-IssuedARIN-Issued report for 2018-01-13: "Remove 172.84.155.0-172.84.155.255"source · retrieved
BeforeARIN delegated statistics 2018-01-12 (produced 2018-01-12T06:09:18+00:00), before the report: reservedsource · retrieved
AfterARIN delegated statistics 2018-01-14 (produced 2018-01-14T06:10:46+00:00), after the report: allocated (dated 2018-01-13)source · retrieved
Classification history for this change (4 versions)
: Change to ARIN's own pool record, strong inference (classifier 1.3.0)
: Change to ARIN's own pool record, strong inference (classifier 1.3.1)
: Change to ARIN's own pool record, strong inference (classifier 1.3.2)
: Change to ARIN's own pool record, strong inference (classifier 1.4.0) current
Transfer records (1)
Date (UTC)
Log
Type
Range moved
From
To
ARIN
Merger acquisition
172.84.155.0/24
SDC Internet ARIN
SDC Internet ARIN
Every record in the ARIN, RIPE NCC, APNIC, LACNIC and AFRINIC transfer logs that moved any part of this IPv4 range (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
Not looked up. The tracker queries RDAP for changes as they're reported (on first sight, after 24 hours and after seven days); older changes aren't looked up because today's RDAP says nothing about the past.