rirtracker

IPv4 range · 256 addresses

199.115.31.0/24

Now

ARIN statistics
Allocated (dated 2016-04-07) (US), in the latest file
Registry
ARIN
Holder
GMI
From
ARIN's latest statistics and the latest transfer record

Latest change

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

Reported
2025-08-11 (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.

2025-08-11 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 2025-10-10. 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 2016-04-07) on 2025-08-10 and reserved on 2025-08-12. 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 2025-10-10. 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: 199.115.31.0/24 allocated on 2025-08-11, reserved on 2025-08-12 source · retrieved
  2. Before ARIN delegated statistics 2025-08-10 (produced 2025-08-10T13:00:50+00:00), before the report: allocated (dated 2016-04-07) source · retrieved
  3. After ARIN delegated statistics 2025-08-12 (produced 2025-08-12T13:00:52+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
2023-09-05 ARIN Transfer log Merger/acquisition or reorganization Confirmed
Transfer log
Merger/acquisition: HarborTech Mobility, Inc. (ARIN) to GMI (ARIN)
From
HarborTech Mobility, Inc. ARIN
To
GMI ARIN
Inventory
No effect on ARIN applicant inventory

ARIN's transfer log records a merger, acquisition or reorganization from HarborTech Mobility, Inc. (ARIN) to GMI (ARIN) on 2023-09-05 19:16 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,
  1. Transfer log Transfer log: MERGER_ACQUISITION on 2023-09-05 19:16 UTC, HarborTech Mobility, Inc. (ARIN) to GMI (ARIN); resources moved: 199.115.31.0/24 source · retrieved
  2. Before ARIN delegated statistics 2023-09-04 (produced 2023-09-04T13:00:11+00:00), before the report: allocated (dated 2016-04-07) source · retrieved
  3. After ARIN delegated statistics 2023-09-06 (produced 2023-09-06T13:00:12+00:00), after the report: allocated (dated 2016-04-07) source · retrieved
2016-04-07 ARIN + Add Intra-ARIN transfer Confirmed
ARIN-Issued
Add 199.115.31.0-199.115.31.255
From
Direct Colocation, LLC ARIN
To
HarborTech Mobility, Inc. ARIN
Piece of
199.115.28.0/22: the rest of the block stayed with the seller
Inventory
No effect on ARIN applicant inventory

ARIN's transfer log records a transfer from Direct Colocation, LLC (ARIN) to HarborTech Mobility, Inc. (ARIN) on 2016-04-07 16:08 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 2016-04-07: "Add 199.115.31.0-199.115.31.255" source · retrieved
  2. Transfer log Transfer log: RESOURCE_TRANSFER on 2016-04-07 16:08 UTC, Direct Colocation, LLC (ARIN) to HarborTech Mobility, Inc. (ARIN); resources moved: 199.115.31.0/24 source · retrieved
  3. Before ARIN delegated statistics 2016-04-06 (produced 2016-04-06T05:05:29+00:00), before the report: allocated (dated 2009-03-27) source · retrieved
  4. After ARIN delegated statistics 2016-04-08 (produced 2016-04-08T05:05:03+00:00), after the report: allocated (dated 2016-04-07) 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
2009-03-27ARIN199.115.28.0/22+ AddApparent new issuance

Transfer records (2)

Date (UTC)LogTypeRange movedFromTo
ARINMerger acquisition199.115.31.0/24 HarborTech Mobility, Inc. ARINGMI ARIN
ARINResource transfer199.115.31.0/24 Direct Colocation, LLC ARINHarborTech Mobility, 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/199.115.31.0-199.115.31.255.json