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.
ARIN's transfer log records a transfer from Alpha InfoLab Inc (ARIN) to Ooma, Inc. (ARIN) on 2025-05-09 11:11 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,
ARIN-IssuedARIN-Issued report for 2025-05-09: "Add 163.53.212.0-163.53.215.255"source · retrieved
Transfer logTransfer log: RESOURCE_TRANSFER on 2025-05-09 11:11 UTC, Alpha InfoLab Inc (ARIN) to Ooma, Inc. (ARIN); resources moved: 163.53.212.0/22source · retrieved
BeforeARIN delegated statistics 2025-05-08 (produced 2025-05-08T13:01:09+00:00), before the report: allocated (dated 2021-09-07)source · retrieved
AfterARIN delegated statistics 2025-05-10 (produced 2025-05-10T13:01:10+00:00), after the report: allocated (dated 2025-05-09)source · retrieved
Classification history for this change (4 versions)
Transferred out of APNIC administration; not offered to APNIC applicants
APNIC's transfer log records a transfer from Nextra Televentures Private Limited (APNIC) to AI-1720 (ARIN) on 2021-09-07 23:43 UTC: it left APNIC for ARIN. It is not a new allocation and is not offered to APNIC applicants.
Evidence (3) · classifier 1.4.0,
Transfer logTransfer log: RESOURCE_TRANSFER on 2021-09-07 23:43 UTC, Nextra Televentures Private Limited (APNIC) to AI-1720 (ARIN); resources moved: 163.53.212.0/22source · retrieved
BeforeAPNIC delegated statistics 2021-09-08, before the change: allocated (dated 2016-02-03)source · retrieved
AfterAPNIC delegated statistics 2021-09-09, after the change: not listedsource · retrieved
Classification history for this change (4 versions)
: Inter-RIR transfer out of APNIC, confirmed (classifier 1.3.0)
: Inter-RIR transfer out of APNIC, confirmed (classifier 1.3.1)
: Inter-RIR transfer out of APNIC, confirmed (classifier 1.3.2)
: Inter-RIR transfer out of APNIC, confirmed (classifier 1.4.0) current
2021-09-07ARIN+ AddInter-RIR transfer into ARINConfirmed
ARIN-Issued
Add 163.53.212.0-163.53.215.255
From
Nextra Televentures Private Limited APNIC
To
Alpha InfoLab Inc ARIN
Same transfer
Also a change at APNIC, the sending registry: APNIC, 2021-09-08. Lists that cover every registry show it there.
Inventory
Transferred into ARIN administration; not a new issuance
ARIN's transfer log records a transfer from Nextra Televentures Private Limited (APNIC) to Alpha InfoLab Inc (ARIN) on 2021-09-07 20:03 UTC: it came to ARIN from APNIC. It was already issued by another registry, so this is not a new issuance.
Evidence (4) · classifier 1.4.0,
ARIN-IssuedARIN-Issued report for 2021-09-07: "Add 163.53.212.0-163.53.215.255"source · retrieved
Transfer logTransfer log: RESOURCE_TRANSFER on 2021-09-07 20:03 UTC, Nextra Televentures Private Limited (APNIC) to Alpha InfoLab Inc (ARIN); resources moved: 163.53.212.0/22source · retrieved
BeforeARIN delegated statistics 2021-09-06 (produced 2021-09-06T14:00:14+00:00), before the report: not listedsource · retrieved
AfterARIN delegated statistics 2021-09-08 (produced 2021-09-08T14:00:14+00:00), after the report: allocated (dated 2021-09-07)source · retrieved
Classification history for this change (4 versions)
: Inter-RIR transfer into ARIN, confirmed (classifier 1.3.0)
: Inter-RIR transfer into ARIN, confirmed (classifier 1.3.1)
: Inter-RIR transfer into ARIN, confirmed (classifier 1.3.2)
: Inter-RIR transfer into ARIN, confirmed (classifier 1.4.0) current
2016-02-03APNIC+ RegisteredApparent reissuance of previously removed resourceStrong inference
Statistics
163.53.212.0/22 reserved on 2016-02-03, allocated on 2016-02-04
Inventory
Likely issued from APNIC-controlled inventory
No transfer record matches. APNIC's statistics show it reserved on 2016-02-03 and allocated (dated 2016-02-03) on 2016-02-04. The tracker saw this range removed from registration on 2015-01-29 (163.53.212.0/22), so it appears to have been issued again from APNIC's pool.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing APNIC's daily statistics: 163.53.212.0/22 reserved on 2016-02-03, allocated on 2016-02-04source · retrieved
BeforeAPNIC delegated statistics 2016-02-03, before the change: reservedsource · retrieved
AfterAPNIC delegated statistics 2016-02-04, after the change: allocated (dated 2016-02-03)source · retrieved
Classification history for this change (4 versions)
: Apparent reissuance of previously removed resource, strong inference (classifier 1.4.0) current
2015-01-29APNIC− DeregisteredRemoved (return, revocation or reclamation not publicly distinguishable)Strong inference
Statistics
163.53.212.0/22 allocated on 2015-01-29, reserved on 2015-01-30
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2016-01-29. Possible reissue candidate after this date; not confirmed available.
Removed from active registration. The tracker found it by comparing APNIC's daily statistics. APNIC's statistics show it allocated (dated 2014-07-11) on 2015-01-29 and reserved on 2015-01-30. Public sources do not distinguish a voluntary return, revocation, or reclamation. APNIC publishes no hold period, but its statistics have released returned IPv4 space a year after the removal or later since 2014, so the tracker estimates the hold ends on 2016-01-29. That is what APNIC has done, not a rule it states. This does not confirm availability.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing APNIC's daily statistics: 163.53.212.0/22 allocated on 2015-01-29, reserved on 2015-01-30source · retrieved
BeforeAPNIC delegated statistics 2015-01-29, before the change: allocated (dated 2014-07-11)source · retrieved
AfterAPNIC delegated statistics 2015-01-30, after the change: reservedsource · retrieved
Classification history for this change (4 versions)
: Removed (return, revocation or reclamation not publicly distinguishable), strong inference (classifier 1.3.0)
: Removed (return, revocation or reclamation not publicly distinguishable), strong inference (classifier 1.3.1)
: Removed (return, revocation or reclamation not publicly distinguishable), strong inference (classifier 1.3.2)
: Removed (return, revocation or reclamation not publicly distinguishable), strong inference (classifier 1.4.0) current
2014-07-11APNIC+ RegisteredApparent reissuance of previously removed resourceStrong inference
Statistics
163.53.212.0/22 available on 2014-07-11, allocated on 2014-07-12
Inventory
Likely issued from APNIC-controlled inventory
No transfer record matches. APNIC's statistics show it available on 2014-07-11 and allocated (dated 2014-07-11) on 2014-07-12. The tracker saw this range removed from registration on 2011-11-14 (163.53.0.0/16), so it appears to have been issued again from APNIC's pool.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing APNIC's daily statistics: 163.53.212.0/22 available on 2014-07-11, allocated on 2014-07-12source · retrieved
BeforeAPNIC delegated statistics 2014-07-11, before the change: availablesource · retrieved
AfterAPNIC delegated statistics 2014-07-12, after the change: allocated (dated 2014-07-11)source · retrieved
Classification history for this change (4 versions)
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.