rirtracker

IPv4 range · 4,096 addresses

172.86.224.0/20

Now

ARIN statistics
Allocated (dated 2018-06-01), allocated (dated 2018-06-04), allocated (dated 2018-06-06), allocated (dated 2018-06-19), allocated (dated 2018-06-26), allocated (dated 2018-07-30) (US), in the latest file
Registry
ARIN
Holder
Not looked up
From
ARIN's latest statistics

Latest change

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

Reported
2017-06-13 (ARIN)
Confidence
Strong inference
Inventory
Possible future reissue candidate after hold

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.

2017-06-13 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 2017-08-12. 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 2015-06-01) on 2017-06-12 and reserved on 2017-06-14. 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 2017-08-12. 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: 172.86.224.0/20 allocated on 2017-06-13, reserved on 2017-06-14 source · retrieved
  2. Before ARIN delegated statistics 2017-06-12 (produced 2017-06-12T05:10:01+00:00), before the report: allocated (dated 2015-06-01) source · retrieved
  3. After ARIN delegated statistics 2017-06-14 (produced 2017-06-14T05:10:20+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
2016-06-07 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 2016-08-06. 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 2015-06-01) on 2016-06-06 and reserved on 2016-06-08. 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 2016-08-06. 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: 172.86.224.0/20 allocated on 2016-06-07, reserved on 2016-06-08 source · retrieved
  2. Before ARIN delegated statistics 2016-06-06 (produced 2016-06-06T05:04:32+00:00), before the report: allocated (dated 2015-06-01) source · retrieved
  3. After ARIN delegated statistics 2016-06-08 (produced 2016-06-08T05:04:16+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
2015-06-01 ARIN + Add Apparent new issuance Strong inference
ARIN-Issued
Add 172.86.224.0-172.86.239.255
Inventory
Likely issued from ARIN-controlled inventory

No transfer record matches. ARIN's statistics show it available on 2015-05-31 and allocated (dated 2015-06-01) on 2015-06-02. 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,
  1. ARIN-Issued ARIN-Issued report for 2015-06-01: "Add 172.86.224.0-172.86.239.255" source · retrieved
  2. Before ARIN delegated statistics 2015-05-31 (produced 2015-05-31T05:04:21+00:00), before the report: available source · retrieved
  3. After ARIN delegated statistics 2015-06-02 (produced 2015-06-02T05:04:20+00:00), after the report: allocated (dated 2015-06-01) source · retrieved
Classification history for this change (4 versions)
  1. : Apparent reissuance of previously removed resource, strong inference (classifier 1.3.0)
  2. : Apparent reissuance of previously removed resource, strong inference (classifier 1.3.1)
  3. : Apparent new issuance, strong inference (classifier 1.3.2)
  4. : Apparent new issuance, strong inference (classifier 1.4.0) current

Changes to overlapping ranges

DateRegistryRangeRecorded asWhat happened
2018-07-30ARIN172.86.236.0/24+ AddApparent reissuance
2018-07-30ARIN172.86.236.0/24− RemoveARIN pool record
2018-06-26ARIN172.86.238.0/24+ AddApparent reissuance
2018-06-26ARIN172.86.238.0/24− RemoveARIN pool record
2018-06-19ARIN172.86.232.0/22+ AddApparent reissuance
2018-06-19ARIN172.86.232.0/22− RemoveARIN pool record
2018-06-06ARIN172.86.237.0/24+ AddApparent reissuance
2018-06-06ARIN172.86.237.0/24− RemoveARIN pool record
2018-06-04ARIN172.86.239.0/24+ AddApparent reissuance
2018-06-04ARIN172.86.239.0/24− RemoveARIN pool record
2018-06-01ARIN172.86.224.0/21+ AddApparent reissuance
2018-06-01ARIN172.86.224.0/21− RemoveARIN pool record
2018-06-01ARIN172.86.232.0/22− RemoveNo material change
2018-06-01ARIN172.86.236.0/24− RemoveNo material change
2018-06-01ARIN172.86.237.0/24− RemoveNo material change
2018-06-01ARIN172.86.238.0/24− RemoveNo material change
2018-06-01ARIN172.86.239.0/24− RemoveNo material change

Transfer records

No transfer log has a transfer of any part of this IPv4 range.

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/172.86.224.0-172.86.239.255.json