rirtracker

IPv4 range · 2,097,152 addresses

74.224.0.0/11

Now

ARIN statistics
Allocated (dated 2006-01-17), allocated (dated 2019-12-11), allocated (dated 2022-11-15), allocated (dated 2024-12-12), allocated (dated 2025-09-11), allocated (dated 2025-12-12) (US), in the latest file
Registry
ARIN
Holder
AT&T Corp.
From
ARIN's latest statistics and the latest transfer record

Latest change

Transfer log Merger/acquisition or reorganization

Reported
2018-09-10 (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.

2018-09-10 ARIN Transfer log Merger/acquisition or reorganization Confirmed
Transfer log
Merger/acquisition: BellSouth.net Inc. (ARIN) to AT&T Corp. (ARIN)
From
BellSouth.net Inc. ARIN
To
AT&T Corp. ARIN
Inventory
No effect on ARIN applicant inventory

ARIN's transfer log records a merger, acquisition or reorganization from BellSouth.net Inc. (ARIN) to AT&T Corp. (ARIN) on 2018-09-10 16:42 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 2018-09-10 16:42 UTC, BellSouth.net Inc. (ARIN) to AT&T Corp. (ARIN); resources moved: 74.224.0.0/11 source · retrieved
  2. Before ARIN delegated statistics 2018-09-09 (produced 2018-09-09T05:00:16+00:00), before the report: allocated (dated 2006-01-17) source · retrieved
  3. After ARIN delegated statistics 2018-09-11 (produced 2018-09-11T05:00:17+00:00), after the report: allocated (dated 2006-01-17) source · retrieved

Sold in pieces

10 pieces of this block transferred since 2008-12-01, 59% of it so far.

DatePieceWhat happenedFromTo
2019-12-11 74.224.0.0/14Intra-ARIN transfer AT&T Corp. ARINMicrosoft Corporation ARIN
2019-12-11 74.234.0.0/15Intra-ARIN transfer AT&T Corp. ARINMicrosoft Corporation ARIN
2019-12-11 74.240.0.0/14Intra-ARIN transfer AT&T Corp. ARINMicrosoft Corporation ARIN
2019-12-11 74.248.0.0/15Intra-ARIN transfer AT&T Corp. ARINMicrosoft Corporation ARIN
2022-11-15 74.230.0.0/16Intra-ARIN transfer AT&T Corp. ARINAmazon.com, Inc. ARIN
2022-11-15 74.233.0.0/16Intra-ARIN transfer AT&T Corp. ARINAmazon.com, Inc. ARIN
2022-11-15 74.250.0.0/16Intra-ARIN transfer AT&T Corp. ARINAmazon.com, Inc. ARIN
2024-12-12 74.237.0.0/16Intra-ARIN transfer AT&T Enterprises, LLC ARINAmazon.com, Inc. ARIN
2025-09-11 74.244.0.0/15Intra-ARIN transfer AT&T Enterprises, LLC ARINSpaceX Services, Inc. ARIN
2025-12-12 74.229.0.0/16Intra-ARIN transfer AT&T Enterprises, LLC ARINBrightspeed ARIN

Changes to overlapping ranges

DateRegistryRangeRecorded asWhat happened
2025-12-12ARIN74.229.0.0/16+ AddIntra-ARIN transfer
2025-12-12ARIN74.236.0.0/16+ AddIntra-ARIN transfer
2025-09-11ARIN74.244.0.0/15+ AddIntra-ARIN transfer
2024-12-12ARIN74.232.0.0/16+ AddIntra-ARIN transfer
2024-12-12ARIN74.237.0.0/16+ AddIntra-ARIN transfer
2024-12-05ARIN74.228.0.0/15Transfer logMerger/acquisition
2024-12-05ARIN74.231.0.0/16Transfer logMerger/acquisition
2024-12-05ARIN74.232.0.0/16Transfer logMerger/acquisition
2024-12-05ARIN74.236.0.0/14Transfer logMerger/acquisition
2024-12-05ARIN74.244.0.0/14Transfer logMerger/acquisition
2024-12-05ARIN74.251.0.0/16Transfer logMerger/acquisition
2024-12-05ARIN74.252.0.0/14Transfer logMerger/acquisition
2022-11-15ARIN74.230.0.0/16+ AddIntra-ARIN transfer
2022-11-15ARIN74.233.0.0/16+ AddIntra-ARIN transfer
2022-11-15ARIN74.250.0.0/16+ AddIntra-ARIN transfer
2019-12-11ARIN74.224.0.0/14+ AddIntra-ARIN transfer
2019-12-11ARIN74.234.0.0/15+ AddIntra-ARIN transfer
2019-12-11ARIN74.240.0.0/14+ AddIntra-ARIN transfer
2019-12-11ARIN74.248.0.0/15+ AddIntra-ARIN transfer

Transfer records (20)

Date (UTC)LogTypeRange movedFromTo
ARINResource transfer74.229.0.0/16 AT&T Enterprises, LLC ARINBrightspeed ARIN
ARINResource transfer74.236.0.0/16 AT&T Enterprises, LLC ARINBrightspeed ARIN
ARINResource transfer74.244.0.0/15 AT&T Enterprises, LLC ARINSpaceX Services, Inc. ARIN
ARINResource transfer74.232.0.0/16 AT&T Enterprises, LLC ARINAmazon.com, Inc. ARIN
ARINResource transfer74.237.0.0/16 AT&T Enterprises, LLC ARINAmazon.com, Inc. ARIN
ARINMerger acquisition74.228.0.0/15 AT&T Corp. ARINAT&T Enterprises, LLC ARIN
ARINMerger acquisition74.231.0.0/16 AT&T Corp. ARINAT&T Enterprises, LLC ARIN
ARINMerger acquisition74.232.0.0/16 AT&T Corp. ARINAT&T Enterprises, LLC ARIN
ARINMerger acquisition74.236.0.0/14 AT&T Corp. ARINAT&T Enterprises, LLC ARIN
ARINMerger acquisition74.244.0.0/14 AT&T Corp. ARINAT&T Enterprises, LLC ARIN
ARINMerger acquisition74.251.0.0/16 AT&T Corp. ARINAT&T Enterprises, LLC ARIN
ARINMerger acquisition74.252.0.0/14 AT&T Corp. ARINAT&T Enterprises, LLC ARIN
ARINResource transfer74.230.0.0/16 AT&T Corp. ARINAmazon.com, Inc. ARIN
ARINResource transfer74.233.0.0/16 AT&T Corp. ARINAmazon.com, Inc. ARIN
ARINResource transfer74.250.0.0/16 AT&T Corp. ARINAmazon.com, Inc. ARIN
ARINResource transfer74.224.0.0/14 AT&T Corp. ARINMicrosoft Corporation ARIN
ARINResource transfer74.234.0.0/15 AT&T Corp. ARINMicrosoft Corporation ARIN
ARINResource transfer74.240.0.0/14 AT&T Corp. ARINMicrosoft Corporation ARIN
ARINResource transfer74.248.0.0/15 AT&T Corp. ARINMicrosoft Corporation ARIN
ARINMerger acquisition74.224.0.0/11 BellSouth.net Inc. ARINAT&T Corp. 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/74.224.0.0-74.255.255.255.json