rirtracker

IPv4 range · 8,192 addresses

66.56.64.0/19

Now

ARIN statistics
Allocated (dated 2025-03-21) (only part of the range) (US), in the latest file
Registry
Not known
Holder
Not looked up

Latest change

Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable)

Reported
2024-06-10 (ARIN)
Confidence
Strong inference
Inventory
Possible future reissue candidate after hold

Hold

Removed
2024-06-10 (ARIN)
Estimated hold end
2024-08-09 (from ARIN's published rule)
Now
Possible reissue candidate; not confirmed available.

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.

2024-06-10 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 2024-08-09. 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 2008-12-09) on 2024-06-09 and reserved on 2024-06-11. 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 2024-08-09. 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: 66.56.64.0/19 allocated on 2024-06-10, reserved on 2024-06-11 source · retrieved
  2. Before ARIN delegated statistics 2024-06-09 (produced 2024-06-09T13:00:47+00:00), before the report: allocated (dated 2008-12-09) source · retrieved
  3. After ARIN delegated statistics 2024-06-11 (produced 2024-06-11T13:00:47+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

Sold in pieces

1 piece of this block transferred since 2008-12-01, 50% of it so far.

DatePieceWhat happenedFromTo
2025-03-18 66.56.80.0/20Transfer out of ARIN Dino Solutions, Inc. ARINNimbus IP Networks BV RIPE NCC

Changes to overlapping ranges

DateRegistryRangeRecorded asWhat happened
2025-03-21ARIN66.56.64.0/20+ AddIntra-ARIN transfer
2025-03-18ARIN66.56.80.0/20Transfer logTransfer out of ARIN
2025-03-18RIPE NCC66.56.80.0/20Transfer logTransfer into the RIPE NCC

Transfer records (3)

Date (UTC)LogTypeRange movedFromTo
ARINResource transfer66.56.64.0/20 Dino Solutions, Inc. ARINCUNNINGHAM COMMUNICATIONS, INC. ARIN
RIPE NCCResource transfer66.56.80.0/20 (no name given) ARINNimbus IP Networks BV RIPE NCC
ARINResource transfer66.56.80.0/20 Dino Solutions, Inc. ARINNimbus IP Networks BV RIPE NCC

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.

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