rirtracker

IPv4 range · 16,384 addresses

173.252.128.0/18

Now

ARIN statistics
Allocated (dated 2010-09-16), allocated (dated 2023-04-13), allocated (dated 2023-05-25), allocated (dated 2024-03-04), allocated (dated 2025-11-19) (US), in the latest file
Registry
Not known
Holder
Not looked up

Latest change

+ Add Apparent new issuance

Reported
2010-09-16 (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.

2010-09-16 ARIN + Add Apparent new issuance Strong inference
ARIN-Issued
Add 173.252.128.0-173.252.191.255
Inventory
Likely issued from ARIN-controlled inventory

No transfer record matches. ARIN's statistics show it not issued on 2010-09-15 and allocated (dated 2010-09-16) on 2010-09-17. (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 2010-09-16: "Add 173.252.128.0-173.252.191.255" source · retrieved
  2. Before ARIN delegated statistics 2010-09-15, before the report: not issued source · retrieved
  3. After ARIN delegated statistics 2010-09-17, after the report: allocated (dated 2010-09-16) 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

30 pieces of this block transferred since 2008-12-01, 92% of it so far.

DatePieceWhat happenedFromTo
2023-02-07 173.252.130.0/23Merger/acquisition Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
2023-02-07 173.252.132.0/23Merger/acquisition Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
2023-02-07 173.252.134.0/23Merger/acquisition Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
2023-02-07 173.252.136.0/23Merger/acquisition Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
2023-02-07 173.252.138.0/23Merger/acquisition Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
2023-02-07 173.252.140.0/23Merger/acquisition Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
2023-02-07 173.252.142.0/24Merger/acquisition Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
2023-02-07 173.252.145.0/24Merger/acquisition Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
2023-02-07 173.252.146.0/23Merger/acquisition Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
2023-02-07 173.252.148.0/23Merger/acquisition Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
2023-02-07 173.252.150.0/23Merger/acquisition Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
2023-02-07 173.252.152.0/22Merger/acquisition Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
2023-02-07 173.252.156.0/23Merger/acquisition Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
2023-02-07 173.252.158.0/23Merger/acquisition Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
2023-02-07 173.252.160.0/22Merger/acquisition Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
2023-02-07 173.252.164.0/23Merger/acquisition Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
2023-02-07 173.252.166.0/24Merger/acquisition Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
2023-02-07 173.252.168.0/23Merger/acquisition Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
2023-02-07 173.252.170.0/23Merger/acquisition Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
2023-02-07 173.252.172.0/23Merger/acquisition Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
2023-02-07 173.252.174.0/23Merger/acquisition Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
2023-02-07 173.252.176.0/22Merger/acquisition Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
2023-02-07 173.252.180.0/23Merger/acquisition Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
2023-02-07 173.252.182.0/23Merger/acquisition Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
2023-02-07 173.252.184.0/23Merger/acquisition Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
2023-02-07 173.252.186.0/23Merger/acquisition Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
2023-02-07 173.252.188.0/23Merger/acquisition Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
2023-02-07 173.252.190.0/23Merger/acquisition Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
2025-11-19 173.252.136.0/24Intra-ARIN transfer BroadbandONE, LLC ARINIntelliVoice ARIN
2025-12-09 173.252.160.0/24Transfer out of ARIN BroadbandONE, LLC ARINCore IP Solutions LLC RIPE NCC

Changes to overlapping ranges

DateRegistryRangeRecorded asWhat happened
2025-12-09ARIN173.252.145.0/24Not in ARIN-IssuedTransfer out of ARIN
2025-12-09RIPE NCC173.252.145.0/24Transfer logTransfer into the RIPE NCC
2025-12-09ARIN173.252.160.0/24Transfer logTransfer out of ARIN
2025-12-09RIPE NCC173.252.160.0/24Transfer logTransfer into the RIPE NCC
2025-12-09ARIN173.252.166.0/24Not in ARIN-IssuedTransfer out of ARIN
2025-12-09RIPE NCC173.252.166.0/24Transfer logTransfer into the RIPE NCC
2025-11-19ARIN173.252.136.0/24+ AddIntra-ARIN transfer
2024-03-04ARIN173.252.128.0/23+ AddIntra-ARIN transfer
2023-05-25ARIN173.252.143.0/24+ AddIntra-ARIN transfer
2023-04-13ARIN173.252.144.0/24+ AddIntra-ARIN transfer
2023-04-13ARIN173.252.167.0/24+ AddIntra-ARIN transfer
2023-02-07ARIN173.252.130.0/23Transfer logMerger/acquisition
2023-02-07ARIN173.252.132.0/23Transfer logMerger/acquisition
2023-02-07ARIN173.252.134.0/23Transfer logMerger/acquisition
2023-02-07ARIN173.252.136.0/23Transfer logMerger/acquisition
2023-02-07ARIN173.252.138.0/23Transfer logMerger/acquisition
2023-02-07ARIN173.252.140.0/23Transfer logMerger/acquisition
2023-02-07ARIN173.252.142.0/24Transfer logMerger/acquisition
2023-02-07ARIN173.252.145.0/24Transfer logMerger/acquisition
2023-02-07ARIN173.252.146.0/23Transfer logMerger/acquisition
2023-02-07ARIN173.252.148.0/23Transfer logMerger/acquisition
2023-02-07ARIN173.252.150.0/23Transfer logMerger/acquisition
2023-02-07ARIN173.252.152.0/22Transfer logMerger/acquisition
2023-02-07ARIN173.252.156.0/23Transfer logMerger/acquisition
2023-02-07ARIN173.252.158.0/23Transfer logMerger/acquisition
2023-02-07ARIN173.252.160.0/22Transfer logMerger/acquisition
2023-02-07ARIN173.252.164.0/23Transfer logMerger/acquisition
2023-02-07ARIN173.252.166.0/24Transfer logMerger/acquisition
2023-02-07ARIN173.252.168.0/23Transfer logMerger/acquisition
2023-02-07ARIN173.252.170.0/23Transfer logMerger/acquisition
2023-02-07ARIN173.252.172.0/23Transfer logMerger/acquisition
2023-02-07ARIN173.252.174.0/23Transfer logMerger/acquisition
2023-02-07ARIN173.252.176.0/22Transfer logMerger/acquisition
2023-02-07ARIN173.252.180.0/23Transfer logMerger/acquisition
2023-02-07ARIN173.252.182.0/23Transfer logMerger/acquisition
2023-02-07ARIN173.252.184.0/23Transfer logMerger/acquisition
2023-02-07ARIN173.252.186.0/23Transfer logMerger/acquisition
2023-02-07ARIN173.252.188.0/23Transfer logMerger/acquisition
2023-02-07ARIN173.252.190.0/23Transfer logMerger/acquisition

Transfer records (39)

Date (UTC)LogTypeRange movedFromTo
RIPE NCCResource transfer173.252.145.0/24 (no name given) ARINCore IP Solutions LLC RIPE NCC
RIPE NCCResource transfer173.252.160.0/24 (no name given) ARINCore IP Solutions LLC RIPE NCC
RIPE NCCResource transfer173.252.166.0/24 (no name given) ARINCore IP Solutions LLC RIPE NCC
ARINResource transfer173.252.145.0/24 BroadbandONE, LLC ARINCore IP Solutions LLC RIPE NCC
ARINResource transfer173.252.160.0/24 BroadbandONE, LLC ARINCore IP Solutions LLC RIPE NCC
ARINResource transfer173.252.166.0/24 BroadbandONE, LLC ARINCore IP Solutions LLC RIPE NCC
ARINResource transfer173.252.136.0/24 BroadbandONE, LLC ARINIntelliVoice ARIN
ARINResource transfer173.252.128.0/23 Sungard Availability Network Solutions, Inc. ARINLuxottica of America Inc. ARIN
ARINResource transfer173.252.143.0/24 Sungard Availability Network Solutions, Inc. ARINSANTA CLARA VALLEY WATER DISTRICT PUBLIC FACILITIES FINANCING CORPORATION ARIN
ARINResource transfer173.252.167.0/24 Sungard Availability Network Solutions, Inc. ARINOrangeHost ARIN
ARINResource transfer173.252.144.0/24 Sungard Availability Network Solutions, Inc. ARIN2024 Rayford Road, L.P. ARIN
ARINMerger acquisition173.252.130.0/23 Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
ARINMerger acquisition173.252.132.0/23 Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
ARINMerger acquisition173.252.134.0/23 Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
ARINMerger acquisition173.252.136.0/23 Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
ARINMerger acquisition173.252.138.0/23 Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
ARINMerger acquisition173.252.140.0/23 Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
ARINMerger acquisition173.252.142.0/24 Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
ARINMerger acquisition173.252.145.0/24 Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
ARINMerger acquisition173.252.146.0/23 Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
ARINMerger acquisition173.252.148.0/23 Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
ARINMerger acquisition173.252.150.0/23 Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
ARINMerger acquisition173.252.152.0/22 Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
ARINMerger acquisition173.252.156.0/23 Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
ARINMerger acquisition173.252.158.0/23 Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
ARINMerger acquisition173.252.160.0/22 Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
ARINMerger acquisition173.252.164.0/23 Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
ARINMerger acquisition173.252.166.0/24 Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
ARINMerger acquisition173.252.168.0/23 Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
ARINMerger acquisition173.252.170.0/23 Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
ARINMerger acquisition173.252.172.0/23 Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
ARINMerger acquisition173.252.174.0/23 Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
ARINMerger acquisition173.252.176.0/22 Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
ARINMerger acquisition173.252.180.0/23 Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
ARINMerger acquisition173.252.182.0/23 Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
ARINMerger acquisition173.252.184.0/23 Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
ARINMerger acquisition173.252.186.0/23 Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
ARINMerger acquisition173.252.188.0/23 Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC ARIN
ARINMerger acquisition173.252.190.0/23 Sungard Availability Network Solutions, Inc. ARINBroadbandONE, LLC 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/173.252.128.0-173.252.191.255.json