rirtracker

IPv6 range · 1,267,650,600,228,229,401,496,703,205,376 addresses

2600:3700::/28

Now

ARIN statistics
Available, in the latest file
Registry
ARIN
Holder
None: it's in the registry's own pool
From
ARIN's latest statistics

Latest change

− Remove Released from hold (ARIN lists it as 'available')

Reported
2025-12-30 (ARIN)
Confidence
Strong inference
Inventory
ARIN's statistics now list it as 'available'; reissue not confirmed

Hold

Released from hold
2025-12-30
Now
Possible reissue candidate; not confirmed available.

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.

2025-12-30 ARIN − Remove Released from hold (ARIN lists it as 'available') Strong inference
ARIN-Issued
Remove 2600:3700::-2600:370F:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF
Inventory
ARIN's statistics now list it as 'available'; reissue not confirmed

ARIN's statistics show it reserved on 2025-12-29 and available on 2025-12-31. ARIN took it out of its reserved (held) records; its statistics now give it the status 'available'. The tracker saw it removed from registration on 2023-03-14, 1022 days earlier. That is ARIN's own label: whether and when it is reissued is not confirmed.

Evidence (3) · classifier 1.4.0,
  1. ARIN-Issued ARIN-Issued report for 2025-12-30: "Remove 2600:3700::-2600:370F:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF" source · retrieved
  2. Before ARIN delegated statistics 2025-12-29 (produced 2025-12-29T14:00:47+00:00), before the report: reserved source · retrieved
  3. After ARIN delegated statistics 2025-12-31 (produced 2025-12-31T14:00:48+00:00), after the report: available source · retrieved
Classification history for this change (4 versions)
  1. : Released from hold (ARIN lists it as 'available'), strong inference (classifier 1.3.0)
  2. : Released from hold (ARIN lists it as 'available'), strong inference (classifier 1.3.1)
  3. : Released from hold (ARIN lists it as 'available'), strong inference (classifier 1.3.2)
  4. : Released from hold (ARIN lists it as 'available'), strong inference (classifier 1.4.0) current
2023-03-14 ARIN Not in ARIN-Issued Merger/acquisition or reorganization Confirmed
From
SUBSPACE ARIN
To
Neoatomic LLC ARIN
Inventory
No effect on ARIN applicant inventory

ARIN's transfer log records a merger, acquisition or reorganization from SUBSPACE (ARIN) to Neoatomic LLC (ARIN) on 2023-03-14 23:11 UTC. ARIN-Issued didn't list this change because the registration changed hands; it is not a new allocation from ARIN.

Evidence (4) · classifier 1.4.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 2600:3700::/28 allocated on 2023-03-14, reserved on 2023-03-15 source · retrieved
  2. Transfer log Transfer log: MERGER_ACQUISITION on 2023-03-14 23:11 UTC, SUBSPACE (ARIN) to Neoatomic LLC (ARIN); resources moved: 2600:3700::/28 source · retrieved
  3. Before ARIN delegated statistics 2023-03-13 (produced 2023-03-13T13:00:10+00:00), before the report: allocated (dated 2019-03-05) source · retrieved
  4. After ARIN delegated statistics 2023-03-15 (produced 2023-03-15T13:00:10+00:00), after the report: reserved source · retrieved
Classification history for this change (4 versions)
  1. : Merger/acquisition or reorganization, confirmed (classifier 1.3.0)
  2. : Merger/acquisition or reorganization, confirmed (classifier 1.3.1)
  3. : Merger/acquisition or reorganization, confirmed (classifier 1.3.2)
  4. : Merger/acquisition or reorganization, confirmed (classifier 1.4.0) current
2019-03-05 ARIN + Add Apparent new issuance Strong inference
ARIN-Issued
Add 2600:3700::-2600:370F:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF
Inventory
Likely issued from ARIN-controlled inventory

No transfer record matches. ARIN's statistics show it available on 2019-03-04 and allocated (dated 2019-03-05) on 2019-03-06. 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 2019-03-05: "Add 2600:3700::-2600:370F:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF" source · retrieved
  2. Before ARIN delegated statistics 2019-03-04 (produced 2019-03-04T06:00:17+00:00), before the report: available source · retrieved
  3. After ARIN delegated statistics 2019-03-06 (produced 2019-03-06T06:00:16+00:00), after the report: allocated (dated 2019-03-05) source · retrieved
Classification history for this change (4 versions)
  1. : Apparent new issuance, strong inference (classifier 1.3.0)
  2. : Apparent new issuance, 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

Transfer records (1)

Date (UTC)LogTypeRange movedFromTo
ARINMerger acquisition2600:3700::/28 SUBSPACE ARINNeoatomic LLC ARIN

Every record in the ARIN, RIPE NCC, APNIC, LACNIC and AFRINIC transfer logs that moved any part of this IPv6 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/2600.3700..-2600.370f.ffff.ffff.ffff.ffff.ffff.ffff.json