rirtracker

IPv4 range · 2,048 addresses

209.163.120.0/21

Now

ARIN statistics
Allocated (dated 2025-07-01) (US), in the latest file
Registry
ARIN
Holder
R-Stor, Inc.
From
ARIN's latest statistics and the latest transfer record

Latest change

− Remove Change to ARIN's own pool record

Reported
2025-07-01 (ARIN)
Confidence
Strong inference
Inventory
Part of the issuance reported the same day

Timeline (3)

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.

2025-07-01 ARIN − Remove Change to ARIN's own pool record Strong inference
ARIN-Issued
Remove 209.163.120.0-209.163.127.255
Inventory
Part of the issuance reported the same day

ARIN's statistics show it reserved on 2025-06-30 and allocated (dated 2025-07-01) on 2025-07-02. ARIN removed its own pool record for this range as part of issuing it: the same report adds 209.163.120.0-209.163.123.255, 209.163.124.0-209.163.127.255. The issuance is explained on those lines.

Evidence (3) · classifier 1.4.0,
  1. ARIN-Issued ARIN-Issued report for 2025-07-01: "Remove 209.163.120.0-209.163.127.255" source · retrieved
  2. Before ARIN delegated statistics 2025-06-30 (produced 2025-06-30T13:01:12+00:00), before the report: reserved source · retrieved
  3. After ARIN delegated statistics 2025-07-02 (produced 2025-07-02T13:01:11+00:00), after the report: allocated (dated 2025-07-01) source · retrieved
Classification history for this change (4 versions)
  1. : Change to ARIN's own pool record, strong inference (classifier 1.3.0)
  2. : Change to ARIN's own pool record, strong inference (classifier 1.3.1)
  3. : Change to ARIN's own pool record, strong inference (classifier 1.3.2)
  4. : Change to ARIN's own pool record, strong inference (classifier 1.4.0) current
2024-10-07 ARIN Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2024-12-06. Possible reissue candidate after this date; not confirmed available.

Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 2018-06-12) on 2024-10-06 and reserved on 2024-10-08. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 space for 60 days before reissuing it, so the estimated hold end is 2024-12-06. This does not confirm availability.

Evidence (3) · classifier 1.4.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 209.163.120.0/21 allocated on 2024-10-07, reserved on 2024-10-08 source · retrieved
  2. Before ARIN delegated statistics 2024-10-06 (produced 2024-10-06T13:00:52+00:00), before the report: allocated (dated 2018-06-12) source · retrieved
  3. After ARIN delegated statistics 2024-10-08 (produced 2024-10-08T13:00:52+00:00), after the report: reserved source · retrieved
Classification history for this change (4 versions)
  1. : Removed (return, revocation or reclamation not publicly distinguishable), strong inference (classifier 1.3.0)
  2. : Removed (return, revocation or reclamation not publicly distinguishable), strong inference (classifier 1.3.1)
  3. : Removed (return, revocation or reclamation not publicly distinguishable), strong inference (classifier 1.3.2)
  4. : Removed (return, revocation or reclamation not publicly distinguishable), strong inference (classifier 1.4.0) current
2018-06-12 ARIN + Add Intra-ARIN transfer Confirmed
ARIN-Issued
Add 209.163.120.0-209.163.127.255
From
Coretel America, Inc. ARIN
To
R-Stor, Inc. ARIN
Inventory
No effect on ARIN applicant inventory

ARIN's transfer log records a transfer from Coretel America, Inc. (ARIN) to R-Stor, Inc. (ARIN) on 2018-06-12 18:19 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 2018-06-12: "Add 209.163.120.0-209.163.127.255" source · retrieved
  2. Transfer log Transfer log: RESOURCE_TRANSFER on 2018-06-12 18:19 UTC, Coretel America, Inc. (ARIN) to R-Stor, Inc. (ARIN); resources moved: 209.163.120.0/21 source · retrieved
  3. Before ARIN delegated statistics 2018-06-11 (produced 2018-06-11T05:00:25+00:00), before the report: allocated (dated 2001-04-03) source · retrieved
  4. After ARIN delegated statistics 2018-06-13 (produced 2018-06-13T05:00:23+00:00), after the report: assigned (dated 2018-06-12) 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

Changes to overlapping ranges

DateRegistryRangeRecorded asWhat happened
2025-07-01ARIN209.163.120.0/22+ AddApparent reissuance
2025-07-01ARIN209.163.124.0/22+ AddApparent reissuance

Transfer records (1)

Date (UTC)LogTypeRange movedFromTo
ARINResource transfer209.163.120.0/21 Coretel America, Inc. ARINR-Stor, Inc. 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.

This page as data: ip/209.163.120.0-209.163.127.255.json