rirtracker

IPv4 range · 8,192 addresses

37.16.0.0/19

Now

ARIN statistics
Allocated (dated 2021-12-21) (US), in the latest file
Registry
ARIN
Holder
Fly.io, Inc.
From
ARIN's latest statistics and the latest transfer record

Latest change

+ Add Inter-RIR transfer into ARIN

Reported
2021-12-21 (ARIN)
Confidence
Confirmed
Inventory
Transferred into ARIN administration; not a new issuance

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.

2021-12-21 ARIN + Add Inter-RIR transfer into ARIN Confirmed
ARIN-Issued
Add 37.16.0.0-37.16.31.255
From
Mijndomein Hosting B.V. RIPE NCC
To
Fly.io, Inc. ARIN
Same transfer
Also a change at the RIPE NCC, the sending registry: RIPE NCC, 2021-12-21. Lists that cover every registry show it there.
Inventory
Transferred into ARIN administration; not a new issuance

ARIN's transfer log records a transfer from Mijndomein Hosting B.V. (RIPE NCC) to Fly.io, Inc. (ARIN) on 2021-12-21 14:56 UTC: it came to ARIN from the RIPE NCC. It was already issued by another registry, so this is not a new issuance.

Evidence (4) · classifier 1.4.0,
  1. ARIN-Issued ARIN-Issued report for 2021-12-21: "Add 37.16.0.0-37.16.31.255" source · retrieved
  2. Transfer log Transfer log: RESOURCE_TRANSFER on 2021-12-21 14:56 UTC, Mijndomein Hosting B.V. (RIPE NCC) to Fly.io, Inc. (ARIN); resources moved: 37.16.0.0/19 source · retrieved
  3. Before ARIN delegated statistics 2021-12-20 (produced 2021-12-20T14:00:13+00:00), before the report: not listed source · retrieved
  4. After ARIN delegated statistics 2021-12-22 (produced 2021-12-22T14:00:13+00:00), after the report: allocated (dated 2021-12-21) source · retrieved
Classification history for this change (4 versions)
  1. : Inter-RIR transfer into ARIN, confirmed (classifier 1.3.0)
  2. : Inter-RIR transfer into ARIN, confirmed (classifier 1.3.1)
  3. : Inter-RIR transfer into ARIN, confirmed (classifier 1.3.2)
  4. : Inter-RIR transfer into ARIN, confirmed (classifier 1.4.0) current
2021-12-21 RIPE NCC Transfer log Inter-RIR transfer out of the RIPE NCC Confirmed
Transfer log
Transfer: Mijndomein Hosting B.V. (RIPE NCC) to (no name) (ARIN)
From
Mijndomein Hosting B.V. RIPE NCC
To
(no name given) ARIN
Same transfer
ARIN recorded it too: ARIN, 2021-12-21.
Inventory
Transferred out of RIPE NCC administration; not offered to RIPE NCC applicants

The RIPE NCC's transfer log records a transfer from Mijndomein Hosting B.V. (RIPE NCC) to an unnamed organization (ARIN) on 2021-12-21 19:00 UTC: it left the RIPE NCC for ARIN. It is not a new allocation and is not offered to RIPE NCC applicants.

Evidence (3) · classifier 1.4.0,
  1. Transfer log Transfer log: RESOURCE_TRANSFER on 2021-12-21 19:00 UTC, Mijndomein Hosting B.V. (RIPE NCC) to (no name) (ARIN); resources moved: 37.16.0.0/19 source · retrieved
  2. Before RIPE NCC delegated statistics 2021-12-20 (produced 2021-12-20T22:59:00+00:00), before the change: allocated (dated 2011-12-16) source · retrieved
  3. After RIPE NCC delegated statistics 2021-12-21 (produced 2021-12-21T22:59:00+00:00), after the change: not listed source · retrieved
Classification history for this change (4 versions)
  1. : Inter-RIR transfer out of the RIPE NCC, confirmed (classifier 1.3.0)
  2. : Inter-RIR transfer out of the RIPE NCC, confirmed (classifier 1.3.1)
  3. : Inter-RIR transfer out of the RIPE NCC, confirmed (classifier 1.3.2)
  4. : Inter-RIR transfer out of the RIPE NCC, confirmed (classifier 1.4.0) current
2011-12-16 RIPE NCC + Registered Apparent reissuance of previously removed resource Strong inference
Statistics
37.16.0.0/19 available on 2011-12-15, allocated on 2011-12-16
Inventory
Likely issued from RIPE NCC-controlled inventory

No transfer record matches. The RIPE NCC's statistics show it available on 2011-12-15 and allocated (dated 2011-12-16) on 2011-12-16. The tracker saw this range removed from registration on 2011-07-06 (37.0.0.0/10), so it appears to have been issued again from the RIPE NCC's pool.

Evidence (3) · classifier 1.4.0,
  1. Statistics Found by comparing the RIPE NCC's daily statistics: 37.16.0.0/19 available on 2011-12-15, allocated on 2011-12-16 source · retrieved
  2. Before RIPE NCC delegated statistics 2011-12-15 (produced 2011-12-15T22:59:59+00:00), before the change: available source · retrieved
  3. After RIPE NCC delegated statistics 2011-12-16 (produced 2011-12-16T22:59:59+00:00), after the change: allocated (dated 2011-12-16) 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 reissuance of previously removed resource, strong inference (classifier 1.3.2)
  4. : Apparent reissuance of previously removed resource, strong inference (classifier 1.4.0) current

Changes to overlapping ranges

DateRegistryRangeRecorded asWhat happened
2011-07-06RIPE NCC37.0.0.0/10− DeregisteredRemoved
2011-03-01RIPE NCC37.0.0.0/10+ RegisteredUnresolved

Transfer records (2)

Date (UTC)LogTypeRange movedFromTo
RIPE NCCResource transfer37.16.0.0/19 Mijndomein Hosting B.V. RIPE NCC(no name given) ARIN
ARINResource transfer37.16.0.0/19 Mijndomein Hosting B.V. RIPE NCCFly.io, 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.

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