rirtracker

IPv4 range · 65,536 addresses

63.251.0.0/16

Now

ARIN statistics
Allocated (dated 1999-12-02), allocated (dated 2023-09-14), allocated (dated 2023-09-20), allocated (dated 2024-02-08), allocated (dated 2026-06-01) (US), in the latest file
Registry
Not known
Holder
Not looked up

Latest change

Transfer log Merger/acquisition or reorganization

Reported
2018-11-29 (ARIN)
Confidence
Confirmed
Inventory
No effect on ARIN applicant 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.

2018-11-29 ARIN Transfer log Merger/acquisition or reorganization Confirmed
Transfer log
Merger/acquisition: Internap Network Services Corporation (ARIN) to Internap Corporation (ARIN)
From
Internap Network Services Corporation ARIN
To
Internap Corporation ARIN
Inventory
No effect on ARIN applicant inventory

ARIN's transfer log records a merger, acquisition or reorganization from Internap Network Services Corporation (ARIN) to Internap Corporation (ARIN) on 2018-11-29 13:45 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 2018-11-29 13:45 UTC, Internap Network Services Corporation (ARIN) to Internap Corporation (ARIN); resources moved: 63.251.0.0/16 source · retrieved
  2. Before ARIN delegated statistics 2018-11-28 (produced 2018-11-28T06:00:11+00:00), before the report: allocated (dated 1999-12-02) source · retrieved
  3. After ARIN delegated statistics 2018-11-30 (produced 2018-11-30T06:00:13+00:00), after the report: allocated (dated 1999-12-02) source · retrieved

Sold in pieces

25 pieces of this block transferred since 2008-12-01, 85% of it so far.

DatePieceWhat happenedFromTo
2023-01-23 63.251.0.0/21Merger/acquisition Internap Holding LLC ARINUnitas Global ARIN
2023-01-23 63.251.8.0/22Merger/acquisition Internap Holding LLC ARINUnitas Global ARIN
2023-01-23 63.251.12.0/23Merger/acquisition Internap Holding LLC ARINUnitas Global ARIN
2023-01-23 63.251.16.0/20Merger/acquisition Internap Holding LLC ARINUnitas Global ARIN
2023-01-23 63.251.32.0/19Merger/acquisition Internap Holding LLC ARINUnitas Global ARIN
2023-01-23 63.251.64.0/20Merger/acquisition Internap Holding LLC ARINUnitas Global ARIN
2023-01-23 63.251.80.0/22Merger/acquisition Internap Holding LLC ARINUnitas Global ARIN
2023-01-23 63.251.84.0/23Merger/acquisition Internap Holding LLC ARINUnitas Global ARIN
2023-01-23 63.251.88.0/21Merger/acquisition Internap Holding LLC ARINUnitas Global ARIN
2023-01-23 63.251.100.0/22Merger/acquisition Internap Holding LLC ARINUnitas Global ARIN
2023-01-23 63.251.108.0/22Merger/acquisition Internap Holding LLC ARINUnitas Global ARIN
2023-01-23 63.251.116.0/22Merger/acquisition Internap Holding LLC ARINUnitas Global ARIN
2023-01-23 63.251.120.0/22Merger/acquisition Internap Holding LLC ARINUnitas Global ARIN
2023-01-23 63.251.128.0/18Merger/acquisition Internap Holding LLC ARINUnitas Global ARIN
2023-01-23 63.251.192.0/19Merger/acquisition Internap Holding LLC ARINUnitas Global ARIN
2023-01-23 63.251.228.0/22Merger/acquisition Internap Holding LLC ARINUnitas Global ARIN
2023-01-23 63.251.236.0/23Merger/acquisition Internap Holding LLC ARINUnitas Global ARIN
2023-01-23 63.251.244.0/22Merger/acquisition Internap Holding LLC ARINUnitas Global ARIN
2023-01-23 63.251.248.0/22Merger/acquisition Internap Holding LLC ARINUnitas Global ARIN
2023-09-14 63.251.120.0/24Intra-ARIN transfer Unitas Global ARINM Financial Group ARIN
2023-09-18 63.251.117.0/24Transfer out of ARIN Unitas Global ARINServer Pro Sweden AB RIPE NCC
2023-09-20 63.251.229.0/24Intra-ARIN transfer Unitas Global ARINLS Networks ARIN
2023-09-26 63.251.122.0/24Transfer out of ARIN Unitas Global ARINFornex Hosting S.L. RIPE NCC
2026-06-01 63.251.201.0/24Intra-ARIN transfer PF IPV4 Borrower, LLC ARINVenture Development LLC ARIN
2026-07-16 63.251.202.0/24Transfer out of ARIN PF IPV4 Borrower, LLC ARINUb Services FlexCo RIPE NCC

Changes to overlapping ranges

DateRegistryRangeRecorded asWhat happened
2026-07-16ARIN63.251.202.0/24Transfer logTransfer out of ARIN
2026-07-16RIPE NCC63.251.202.0/24Transfer logTransfer into the RIPE NCC
2026-06-01ARIN63.251.201.0/24+ AddIntra-ARIN transfer
2025-02-13ARIN63.251.16.0/20Transfer logMerger/acquisition
2025-02-13ARIN63.251.32.0/19Transfer logMerger/acquisition
2025-02-13ARIN63.251.64.0/20Transfer logMerger/acquisition
2025-02-13ARIN63.251.80.0/22Transfer logMerger/acquisition
2025-02-13ARIN63.251.84.0/23Transfer logMerger/acquisition
2025-02-13ARIN63.251.128.0/18Transfer logMerger/acquisition
2025-02-13ARIN63.251.192.0/19Transfer logMerger/acquisition
2024-02-08ARIN63.251.236.0/23+ AddIntra-ARIN transfer
2023-09-26ARIN63.251.122.0/24Transfer logTransfer out of ARIN
2023-09-26RIPE NCC63.251.122.0/24Transfer logTransfer into the RIPE NCC
2023-09-20ARIN63.251.229.0/24+ AddIntra-ARIN transfer
2023-09-18ARIN63.251.117.0/24Transfer logTransfer out of ARIN
2023-09-18RIPE NCC63.251.117.0/24Transfer logTransfer into the RIPE NCC
2023-09-14ARIN63.251.120.0/24+ AddIntra-ARIN transfer
2023-01-23ARIN63.251.0.0/21Transfer logMerger/acquisition
2023-01-23ARIN63.251.8.0/22Transfer logMerger/acquisition
2023-01-23ARIN63.251.12.0/23Transfer logMerger/acquisition
2023-01-23ARIN63.251.16.0/20Transfer logMerger/acquisition
2023-01-23ARIN63.251.32.0/19Transfer logMerger/acquisition
2023-01-23ARIN63.251.64.0/20Transfer logMerger/acquisition
2023-01-23ARIN63.251.80.0/22Transfer logMerger/acquisition
2023-01-23ARIN63.251.84.0/23Transfer logMerger/acquisition
2023-01-23ARIN63.251.88.0/21Transfer logMerger/acquisition
2023-01-23ARIN63.251.100.0/22Transfer logMerger/acquisition
2023-01-23ARIN63.251.108.0/22Transfer logMerger/acquisition
2023-01-23ARIN63.251.116.0/22Transfer logMerger/acquisition
2023-01-23ARIN63.251.120.0/22Transfer logMerger/acquisition
2023-01-23ARIN63.251.128.0/18Transfer logMerger/acquisition
2023-01-23ARIN63.251.192.0/19Transfer logMerger/acquisition
2023-01-23ARIN63.251.228.0/22Transfer logMerger/acquisition
2023-01-23ARIN63.251.236.0/23Transfer logMerger/acquisition
2023-01-23ARIN63.251.244.0/22Transfer logMerger/acquisition
2023-01-23ARIN63.251.248.0/22Transfer logMerger/acquisition

Transfer records (37)

Date (UTC)LogTypeRange movedFromTo
RIPE NCCResource transfer63.251.202.0/24 (no name given) ARINUb services FlexCo (Flexible Kapitalgesellschaft) RIPE NCC
ARINResource transfer63.251.202.0/24 PF IPV4 Borrower, LLC ARINUb Services FlexCo RIPE NCC
ARINResource transfer63.251.201.0/24 PF IPV4 Borrower, LLC ARINVenture Development LLC ARIN
ARINMerger acquisition63.251.16.0/20 Unitas Global ARINPF IPV4 Borrower, LLC ARIN
ARINMerger acquisition63.251.32.0/19 Unitas Global ARINPF IPV4 Borrower, LLC ARIN
ARINMerger acquisition63.251.64.0/20 Unitas Global ARINPF IPV4 Borrower, LLC ARIN
ARINMerger acquisition63.251.80.0/22 Unitas Global ARINPF IPV4 Borrower, LLC ARIN
ARINMerger acquisition63.251.84.0/23 Unitas Global ARINPF IPV4 Borrower, LLC ARIN
ARINMerger acquisition63.251.128.0/18 Unitas Global ARINPF IPV4 Borrower, LLC ARIN
ARINMerger acquisition63.251.192.0/19 Unitas Global ARINPF IPV4 Borrower, LLC ARIN
ARINResource transfer63.251.236.0/23 Unitas Global ARINRoswell Park Cancer Institute ARIN
RIPE NCCResource transfer63.251.122.0/24 (no name given) ARINFornex Hosting S.L. RIPE NCC
ARINResource transfer63.251.122.0/24 Unitas Global ARINFornex Hosting S.L. RIPE NCC
ARINResource transfer63.251.229.0/24 Unitas Global ARINLS Networks ARIN
RIPE NCCResource transfer63.251.117.0/24 (no name given) ARINServer Pro Sweden AB RIPE NCC
ARINResource transfer63.251.117.0/24 Unitas Global ARINServer Pro Sweden AB RIPE NCC
ARINResource transfer63.251.120.0/24 Unitas Global ARINM Financial Group ARIN
ARINMerger acquisition63.251.0.0/21 Internap Holding LLC ARINUnitas Global ARIN
ARINMerger acquisition63.251.8.0/22 Internap Holding LLC ARINUnitas Global ARIN
ARINMerger acquisition63.251.12.0/23 Internap Holding LLC ARINUnitas Global ARIN
ARINMerger acquisition63.251.16.0/20 Internap Holding LLC ARINUnitas Global ARIN
ARINMerger acquisition63.251.32.0/19 Internap Holding LLC ARINUnitas Global ARIN
ARINMerger acquisition63.251.64.0/20 Internap Holding LLC ARINUnitas Global ARIN
ARINMerger acquisition63.251.80.0/22 Internap Holding LLC ARINUnitas Global ARIN
ARINMerger acquisition63.251.84.0/23 Internap Holding LLC ARINUnitas Global ARIN
ARINMerger acquisition63.251.88.0/21 Internap Holding LLC ARINUnitas Global ARIN
ARINMerger acquisition63.251.100.0/22 Internap Holding LLC ARINUnitas Global ARIN
ARINMerger acquisition63.251.108.0/22 Internap Holding LLC ARINUnitas Global ARIN
ARINMerger acquisition63.251.116.0/22 Internap Holding LLC ARINUnitas Global ARIN
ARINMerger acquisition63.251.120.0/22 Internap Holding LLC ARINUnitas Global ARIN
ARINMerger acquisition63.251.128.0/18 Internap Holding LLC ARINUnitas Global ARIN
ARINMerger acquisition63.251.192.0/19 Internap Holding LLC ARINUnitas Global ARIN
ARINMerger acquisition63.251.228.0/22 Internap Holding LLC ARINUnitas Global ARIN
ARINMerger acquisition63.251.236.0/23 Internap Holding LLC ARINUnitas Global ARIN
ARINMerger acquisition63.251.244.0/22 Internap Holding LLC ARINUnitas Global ARIN
ARINMerger acquisition63.251.248.0/22 Internap Holding LLC ARINUnitas Global ARIN
ARINMerger acquisition63.251.0.0/16 Internap Network Services Corporation ARINInternap Corporation 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/63.251.0.0-63.251.255.255.json