rirtracker

IPv4 range · 32,768 addresses

173.208.0.0/17

Now

ARIN statistics
Allocated (dated 2009-12-17), allocated (dated 2017-10-04) (US), in the latest file
Registry
Not known
Holder
Not looked up

Latest change

+ Add Apparent new issuance

Reported
2009-12-17 (ARIN)
Confidence
Strong inference
Inventory
Likely issued from ARIN-controlled inventory

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.

2009-12-17 ARIN + Add Apparent new issuance Strong inference
ARIN-Issued
Add 173.208.0.0-173.208.127.255
Inventory
Likely issued from ARIN-controlled inventory

No transfer record matches. ARIN's statistics show it not issued on 2009-12-16 and allocated (dated 2009-12-17) on 2009-12-18. (Until 2013-03-05, ARIN's statistics list only what's issued.) 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 2009-12-17: "Add 173.208.0.0-173.208.127.255" source · retrieved
  2. Before ARIN delegated statistics 2009-12-16, before the report: not issued source · retrieved
  3. After ARIN delegated statistics 2009-12-18, after the report: allocated (dated 2009-12-17) 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

Sold in pieces

1 piece of this block transferred since 2008-12-01, 2% of it so far.

DatePieceWhat happenedFromTo
2017-10-04 173.208.60.0/23Intra-ARIN transfer Nobis Technology Group, LLC ARINadjust ARIN

Changes to overlapping ranges

DateRegistryRangeRecorded asWhat happened
2022-04-05ARIN173.208.48.0/21Not in ARIN-IssuedTransfer out of ARIN
2022-04-05RIPE NCC173.208.48.0/21Transfer logTransfer into the RIPE NCC
2021-02-15ARIN173.208.0.0/19Transfer logMerger/acquisition
2021-02-15ARIN173.208.32.0/20Transfer logMerger/acquisition
2021-02-15ARIN173.208.48.0/21Transfer logMerger/acquisition
2021-02-15ARIN173.208.56.0/22Transfer logMerger/acquisition
2021-02-15ARIN173.208.62.0/23Transfer logMerger/acquisition
2021-02-15ARIN173.208.64.0/18Transfer logMerger/acquisition
2017-10-04ARIN173.208.60.0/23+ AddIntra-ARIN transfer

Transfer records (9)

Date (UTC)LogTypeRange movedFromTo
RIPE NCCResource transfer173.208.48.0/21 (no name given) ARINLEASEWEB UK LIMITED RIPE NCC
ARINResource transfer173.208.48.0/21 Leaseweb USA, Inc. ARINLEASEWEB UK LIMITED RIPE NCC
ARINMerger acquisition173.208.0.0/19 Nobis Technology Group, LLC ARINLeaseweb USA, Inc. ARIN
ARINMerger acquisition173.208.32.0/20 Nobis Technology Group, LLC ARINLeaseweb USA, Inc. ARIN
ARINMerger acquisition173.208.48.0/21 Nobis Technology Group, LLC ARINLeaseweb USA, Inc. ARIN
ARINMerger acquisition173.208.56.0/22 Nobis Technology Group, LLC ARINLeaseweb USA, Inc. ARIN
ARINMerger acquisition173.208.62.0/23 Nobis Technology Group, LLC ARINLeaseweb USA, Inc. ARIN
ARINMerger acquisition173.208.64.0/18 Nobis Technology Group, LLC ARINLeaseweb USA, Inc. ARIN
ARINResource transfer173.208.60.0/23 Nobis Technology Group, LLC ARINadjust 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/173.208.0.0-173.208.127.255.json