IPv4 range · 4,194,304 addresses

23.128.0.0/10

Now

ARIN statistics: Allocated (3,129 records, dated 2014-07-09 to 2026-11-10), reserved (2,789 records) (AG, AQ, AU, BL, BS, CA, CN, DM, FR, GB, GD, HK, ID, IT, JM, JP, KN, KR, KY, MF, MO, MX, MY, NL, PH, PR, SG, TH, TW, US, VC, VG, VI, VN), in the latest file
Registry: Not known
Holder: Not looked up

Latest change

− Remove Released from hold (ARIN lists it as 'available')

Reported: 2013-03-26 (ARIN)
Confidence: Strong inference
Inventory: ARIN's statistics now list it as 'available'; reissue not confirmed

Hold

Released from hold: 2013-03-26
Now: Possible reissue candidate; not confirmed available.

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.

2013-03-26 ARIN − Remove Released from hold (ARIN lists it as 'available') Strong inference

ARIN-Issued: Remove 23.128.0.0-23.191.255.255
Inventory: ARIN's statistics now list it as 'available'; reissue not confirmed

ARIN's statistics show it reserved on 2013-03-25 and available on 2013-03-27. ARIN took it out of its reserved (held) records; its statistics now give it the status 'available'. That is ARIN's own label: whether and when it is reissued is not confirmed.

Evidence (3) · classifier 1.4.0, 2026-10-13 23:51 UTC

ARIN-Issued ARIN-Issued report for 2013-03-26: "Remove 23.128.0.0-23.191.255.255" source · retrieved 2026-10-12 18:37 UTC
Before ARIN delegated statistics 2013-03-25 (produced 2013-03-25T05:03:07+00:00), before the report: reserved source · retrieved 2026-10-12 19:56 UTC
After ARIN delegated statistics 2013-03-27 (produced 2013-03-27T05:06:20+00:00), after the report: available source · retrieved 2026-10-12 19:56 UTC

Classification history for this change (4 versions)

2026-10-13 03:20 UTC: Released from hold (ARIN lists it as 'available'), strong inference (classifier 1.3.0)
2026-10-13 08:05 UTC: Released from hold (ARIN lists it as 'available'), strong inference (classifier 1.3.1)
2026-10-13 14:48 UTC: Released from hold (ARIN lists it as 'available'), strong inference (classifier 1.3.2)
2026-10-13 23:51 UTC: Released from hold (ARIN lists it as 'available'), strong inference (classifier 1.4.0) current

Changes to overlapping ranges

Date

Registry

Range

Recorded as

What happened

ARIN

23.167.196.0/24

+ Add

Apparent new issuance

ARIN

23.167.228.0/24

+ Add

Apparent new issuance

ARIN

23.167.236.0/24

+ Add

Apparent new issuance

ARIN

23.137.224.0/24

Not in ARIN-Issued

Removed

ARIN

23.137.225.0/24

Not in ARIN-Issued

Removed

ARIN

Not in ARIN-Issued

Removed

ARIN

23.139.252.0/24

Not in ARIN-Issued

Removed

ARIN

23.140.140.0/24

Not in ARIN-Issued

Removed

ARIN

23.167.140.0/24

+ Add

Apparent new issuance

ARIN

23.167.148.0/24

+ Add

Apparent new issuance

ARIN

23.167.156.0/24

+ Add

Apparent new issuance

ARIN

23.167.164.0/24

+ Add

Apparent new issuance

ARIN

23.167.172.0/24

+ Add

Apparent new issuance

ARIN

Not in ARIN-Issued

Removed

ARIN

23.181.168.0/24

Not in ARIN-Issued

Removed

ARIN

Not in ARIN-Issued

Removed

ARIN

Not in ARIN-Issued

Removed

ARIN

23.167.116.0/24

+ Add

Apparent new issuance

ARIN

23.167.132.0/24

+ Add

Apparent new issuance

ARIN

+ Add

Apparent new issuance

ARIN

+ Add

Apparent new issuance

ARIN

+ Add

Apparent new issuance

ARIN

23.167.100.0/24

+ Add

Apparent new issuance

ARIN

23.167.108.0/24

+ Add

Apparent new issuance

ARIN

23.167.124.0/24

+ Add

Apparent new issuance

ARIN

+ Add

Apparent new issuance

ARIN

+ Add

Apparent new issuance

ARIN

+ Add

Apparent new issuance

ARIN

+ Add

Apparent new issuance

ARIN

+ Add

Apparent new issuance

ARIN

+ Add

Apparent new issuance

ARIN

+ Add

Apparent new issuance

ARIN

23.186.176.0/24

Transfer log

Merger/acquisition

ARIN

23.166.228.0/24

+ Add

Apparent new issuance

ARIN

23.166.236.0/24

+ Add

Apparent new issuance

ARIN

23.166.244.0/24

+ Add

Apparent new issuance

ARIN

23.166.252.0/24

+ Add

Apparent new issuance

ARIN

+ Add

Apparent new issuance

ARIN

+ Add

Apparent new issuance

ARIN

23.166.164.0/24

+ Add

Apparent new issuance

ARIN

23.166.220.0/24

+ Add

Apparent new issuance

ARIN

23.166.156.0/24

+ Add

Apparent new issuance

ARIN

23.166.172.0/24

+ Add

Apparent new issuance

ARIN

23.166.100.0/24

+ Add

Apparent new issuance

ARIN

23.166.108.0/24

+ Add

Apparent new issuance

ARIN

23.166.116.0/24

+ Add

Apparent new issuance

ARIN

23.166.124.0/24

+ Add

Apparent new issuance

ARIN

23.166.132.0/24

+ Add

Apparent new issuance

ARIN

23.166.140.0/24

+ Add

Apparent new issuance

ARIN

23.166.148.0/24

+ Add

Apparent new issuance

ARIN

23.141.108.0/24

Not in ARIN-Issued

Removed

ARIN

+ Add

Apparent new issuance

ARIN

+ Add

Apparent new issuance

ARIN

+ Add

Apparent new issuance

ARIN

+ Add

Apparent new issuance

ARIN

+ Add

Apparent new issuance

ARIN

+ Add

Apparent new issuance

ARIN

+ Add

Apparent new issuance

ARIN

+ Add

Apparent new issuance

ARIN

+ Add

Apparent new issuance

Transfer records (100+)

Date (UTC)

Log

Type

Range moved

From

To

2026-11-03 00:40 UTC

ARIN

Merger acquisition

23.186.176.0/24

HugeServer Networks, LLC ARIN

Xitoring LLC ARIN

2026-09-28 20:46 UTC

ARIN

Merger acquisition

23.160.208.0/24

Localhost LLC ARIN

Cautela LLC ARIN

2026-09-28 19:02 UTC

ARIN

Merger acquisition

23.187.80.0/24

Full Span Solutions LLC ARIN

Core Transit LLC ARIN

2026-09-08 14:53 UTC

ARIN

Merger acquisition

23.132.176.0/24

Evolve Communications Inc ARIN

City West Cable & Telephone Corp. ARIN

2026-08-31 17:01 UTC

ARIN

Merger acquisition

23.153.224.0/24

Setson LLC ARIN

Three Lanterns LLC ARIN

2026-08-31 15:05 UTC

ARIN

Merger acquisition

23.171.40.0/24

Zoom Tech Arizona Limited ARIN

BAM Broadband Opco, LLC ARIN

2026-08-28 18:49 UTC

ARIN

Merger acquisition

23.136.80.0/24

VURGE INC. ARIN

ARROW DATACENTERS INC ARIN

2026-08-19 13:33 UTC

ARIN

Merger acquisition

23.132.84.0/24

IPCrash LLC ARIN

Xproxies ARIN

2026-08-14 18:12 UTC

ARIN

Merger acquisition

23.170.96.0/24

The Internet Company Limited Partnership ARIN

ARROW DATACENTERS INC ARIN

2026-08-10 22:06 UTC

ARIN

Merger acquisition

23.151.96.0/24

Arrow Group Inc. ARIN

ARROW DATACENTERS INC ARIN

2026-07-10 19:02 UTC

ARIN

Merger acquisition

23.137.20.0/24

CovertHart Networks ARIN

Planet Networks ARIN

2026-06-15 20:29 UTC

ARIN

Merger acquisition

23.166.160.0/24

AM Data Service, Inc. ARIN

Adaptive Data Networks, LLC ARIN

2026-05-01 15:14 UTC

ARIN

Merger acquisition

23.184.8.0/24

BRIGHTON BROADBAND INC. ARIN

3ds Communications LLC ARIN

2026-04-22 14:14 UTC

ARIN

Merger acquisition

23.151.240.0/24

Hill Country Wireless & Technology ARIN

Wi-Fiber, Inc. ARIN

2026-04-09 20:06 UTC

ARIN

Merger acquisition

23.135.200.0/24

Isogram, LLC ARIN

Isogram Inc. ARIN

2026-03-18 16:53 UTC

ARIN

Merger acquisition

23.144.220.0/24

Velocity Wireless ARIN

Net Vision Communications, LLC ARIN

2026-03-11 18:12 UTC

ARIN

Merger acquisition

23.147.24.0/24

Bridge Point Communication ARIN

Slic Network Solutions, Inc ARIN

2026-03-11 17:15 UTC

ARIN

Merger acquisition

23.136.44.0/24

Skylink Hosting LLC ARIN

Ennwise ARIN

2026-02-09 13:03 UTC

ARIN

Merger acquisition

23.163.192.0/24

ABC Allen Business Communications Ltd ARIN

TELUS Communications Inc. ARIN

2026-01-08 12:09 UTC

ARIN

Merger acquisition

23.146.184.0/24

Atomic Networks LLC ARIN

SPARKED HOST LLC ARIN

2025-12-30 22:54 UTC

ARIN

Merger acquisition

23.146.176.0/24

KRAKR Enterprises Inc ARIN

Access Communications Co-operative Limited ARIN

2025-12-30 22:54 UTC

ARIN

Merger acquisition

23.182.112.0/24

KRAKR Enterprises Inc ARIN

Access Communications Co-operative Limited ARIN

2025-12-30 22:48 UTC

ARIN

Merger acquisition

23.172.16.0/24

Adams CATV, Inc ARIN

PenTeleData Inc. ARIN

2025-12-23 16:01 UTC

ARIN

Merger acquisition

23.174.0.0/22

Loop Internet ARIN

Greenlight Networks, LLC ARIN

2025-12-23 16:01 UTC

ARIN

Merger acquisition

23.174.4.0/24

Loop Internet ARIN

Greenlight Networks, LLC ARIN

2025-12-23 14:39 UTC

ARIN

Merger acquisition

23.150.24.0/24

Planet X Hosting LLC ARIN

QuickMeg Inc ARIN

2025-12-23 14:32 UTC

ARIN

Merger acquisition

23.184.56.0/24

Charged IT Solutions LLC ARIN

QuickMeg Inc ARIN

2025-12-16 17:08 UTC

ARIN

Merger acquisition

23.131.216.0/24

RADNOC, LLC ARIN

RadWeb, LLC ARIN

2025-12-12 13:06 UTC

ARIN

Merger acquisition

23.132.108.0/24

BilbyCorp ARIN

HostBilby Inc. ARIN

2025-12-04 20:26 UTC

ARIN

Merger acquisition

23.149.248.0/24

Great Plains Connect ARIN

ITSUDATTE INC. ARIN

2025-10-02 17:28 UTC

ARIN

Merger acquisition

23.136.168.0/24

Tilson Broadband ARIN

Selectronics Corp. ARIN

2025-08-12 13:47 UTC

ARIN

Merger acquisition

23.141.44.0/24

The College of St. Rose ARIN

Albany County Pine Hills Land Authority ARIN

2025-07-21 19:01 UTC

ARIN

Merger acquisition

23.154.0.0/24

transat telecom ARIN

Altima Telecom ARIN

2025-07-21 19:01 UTC

ARIN

Merger acquisition

23.154.1.0/24

transat telecom ARIN

Altima Telecom ARIN

2025-07-21 19:01 UTC

ARIN

Merger acquisition

23.154.2.0/24

transat telecom ARIN

Altima Telecom ARIN

2025-07-02 19:28 UTC

ARIN

Merger acquisition

23.167.24.0/24

QUAENET Fi ARIN

InnSys Incorporated ARIN

2025-07-02 19:28 UTC

ARIN

Merger acquisition

23.167.25.0/24

QUAENET Fi ARIN

InnSys Incorporated ARIN

2025-06-20 17:48 UTC

ARIN

Merger acquisition

23.131.248.0/24

Tristate Wifi LLC ARIN

Wi-Fiber, Inc. ARIN

2025-06-18 21:36 UTC

ARIN

Merger acquisition

23.167.96.0/24

BENCHMARK COMMUNICATIONS LLC ARIN

REV ARIN

2025-06-12 17:48 UTC

ARIN

Merger acquisition

23.170.96.0/24

The Internet Company Limited Partnership ARIN

The Internet Company Limited Partnership ARIN

2025-06-12 12:02 UTC

ARIN

Merger acquisition

23.170.16.0/24

Northern Backup Incorporated ARIN

igniteCSG ARIN

2025-05-28 12:16 UTC

ARIN

Merger acquisition

23.149.152.0/24

Lambda Internet Exchange ARIN

August Internet ARIN

2025-04-30 15:50 UTC

ARIN

Merger acquisition

23.135.82.0/24

Ashley Statuto, Sole Proprietorship ARIN

NORTH JERSEY COMMUNICATIONS LLC ARIN

2025-04-16 11:40 UTC

ARIN

Merger acquisition

23.173.96.0/24

Velociter Wireless, Inc. ARIN

ezWave Inc. ARIN

2025-04-02 15:35 UTC

ARIN

Merger acquisition

23.190.128.0/24

SWIFT INTERNET INC. ARIN

TELUS Communications Inc. ARIN

2025-02-13 12:05 UTC

ARIN

Merger acquisition

23.174.152.0/24

AMW TELECOM LLC ARIN

Latigo, LLC ARIN

2025-02-13 12:05 UTC

ARIN

Merger acquisition

23.174.153.0/24

AMW TELECOM LLC ARIN

Latigo, LLC ARIN

2025-02-06 14:01 UTC

ARIN

Merger acquisition

23.190.240.0/24

Emerald Harbor Communications, LLC. ARIN

3ds Communications LLC ARIN

2025-02-06 14:01 UTC

ARIN

Merger acquisition

23.190.241.0/24

Emerald Harbor Communications, LLC. ARIN

3ds Communications LLC ARIN

2025-02-05 15:42 UTC

ARIN

Merger acquisition

23.142.176.0/24

SwiftPulse LLC ARIN

Bitrion LLC ARIN

2025-02-05 15:42 UTC

ARIN

Merger acquisition

23.151.72.0/24

NullHosting LLC ARIN

Bitrion LLC ARIN

2025-02-05 15:42 UTC

ARIN

Merger acquisition

23.168.176.0/24

NetCrash LLC ARIN

Bitrion LLC ARIN

2025-02-05 15:42 UTC

ARIN

Merger acquisition

23.169.208.0/24

NullHosting LLC ARIN

Bitrion LLC ARIN

2025-01-31 22:28 UTC

ARIN

Merger acquisition

23.171.232.0/24

SoloNet Broadband LLC ARIN

ICON Internet, LLC ARIN

2025-01-29 13:00 UTC

ARIN

Merger acquisition

23.155.32.0/24

AU Wireless ARIN

Aerux LLP ARIN

2025-01-06 18:53 UTC

ARIN

Merger acquisition

23.133.8.0/24

hkgo LLC ARIN

August Internet ARIN

2024-12-18 18:34 UTC

ARIN

Merger acquisition

23.132.128.0/24

Riviera Utilities ARIN

Point Broadband Fiber Holding, LLC ARIN

2024-11-21 15:38 UTC

ARIN

Merger acquisition

23.191.128.0/24

Full Throttle Networks Inc. ARIN

Xplornet Communications Inc. ARIN

2024-11-21 15:38 UTC

ARIN

Merger acquisition

23.191.129.0/24

Full Throttle Networks Inc. ARIN

Xplornet Communications Inc. ARIN

2024-11-18 20:33 UTC

ARIN

Merger acquisition

23.135.32.0/24

Pumpkin Networks, LLC ARIN

Another Corporate ISP, LLC ARIN

2024-11-13 19:13 UTC

ARIN

Merger acquisition

23.150.208.0/24

Deep Edge Technologies ARIN

Deep Edge ARIN

2024-11-06 22:06 UTC

ARIN

Merger acquisition

23.135.88.0/24

Schneider's Computing & Websites Ltd. ARIN

Schneider's Computing Ltd. ARIN

2024-10-23 16:35 UTC

ARIN

Merger acquisition

23.165.16.0/24

Bolt Internet Inc ARIN

Midvale Telephone Exchange ARIN

2024-09-18 13:08 UTC

ARIN

Merger acquisition

23.148.88.0/24

DAVIS VOICE & DATA ARIN

Skymesh, Inc ARIN

2024-09-05 18:38 UTC

ARIN

Merger acquisition

23.140.88.0/24

Bambell Networks ARIN

Heymman Servers Corporation ARIN

2024-08-19 15:57 UTC

ARIN

Merger acquisition

23.156.112.0/24

RedMercury LTD ARIN

NetSWAT LLC ARIN

2024-08-07 21:08 UTC

ARIN

Merger acquisition

23.161.144.0/24

Tunbroker LLC ARIN

NetSWAT LLC ARIN

2024-08-07 21:08 UTC

ARIN

Merger acquisition

23.161.145.0/24

Tunbroker LLC ARIN

NetSWAT LLC ARIN

2024-08-01 13:46 UTC

ARIN

Merger acquisition

23.151.112.0/24

Fusion Networks LLC ARIN

Fusion Networks Enterprises LLC, The ARIN

2024-07-15 12:48 UTC

ARIN

Merger acquisition

23.161.16.0/24

Go Net ARIN

OSNET Wireless ARIN

2024-06-06 20:24 UTC

ARIN

Merger acquisition

23.146.96.0/24

inazma ARIN

TECPRESSO INC. ARIN

2024-04-23 17:28 UTC

ARIN

Merger acquisition

23.128.224.0/24

Envi Networks Ltd. ARIN

TelMAX Inc. ARIN

2024-04-05 20:21 UTC

ARIN

Merger acquisition

23.148.80.0/24

Asset Black, LLC ARIN

Momentum Telecom, Inc. ARIN

2024-04-05 17:47 UTC

ARIN

Merger acquisition

23.183.192.0/24

GTAISP ARIN

InnSys Incorporated ARIN

2024-04-05 17:47 UTC

ARIN

Merger acquisition

23.183.193.0/24

GTAISP ARIN

InnSys Incorporated ARIN

2024-03-04 21:29 UTC

ARIN

Merger acquisition

23.179.16.0/24

InZernet Technologies, LLC ARIN

IZT Cloud ARIN

2024-03-04 21:29 UTC

ARIN

Merger acquisition

23.179.17.0/24

InZernet Technologies, LLC ARIN

IZT Cloud ARIN

2024-02-23 19:28 UTC

ARIN

Merger acquisition

23.174.0.0/22

Loop Internet ARIN

Loop Internet ARIN

2024-02-21 16:36 UTC

ARIN

Merger acquisition

23.151.32.0/23

AiroNet ARIN

BlueBit Networks LLC ARIN

2024-02-15 22:27 UTC

ARIN

Merger acquisition

23.155.176.0/24

MiSignal ARIN

Surf Air Wireless, LLC ARIN

2024-02-15 22:27 UTC

ARIN

Merger acquisition

23.155.177.0/24

MiSignal ARIN

Surf Air Wireless, LLC ARIN

2024-02-15 22:27 UTC

ARIN

Merger acquisition

23.155.178.0/24

MiSignal ARIN

Surf Air Wireless, LLC ARIN

2024-02-09 21:59 UTC

ARIN

Merger acquisition

23.160.16.0/24

MEME HOLDINGS ARIN

Meme Holdings LLC ARIN

2024-02-02 13:36 UTC

ARIN

Merger acquisition

23.175.96.0/24

Stroud Media L.L.C ARIN

Planet Networks ARIN

2024-01-04 15:26 UTC

ARIN

Merger acquisition

23.155.24.0/24

Onion Proxy Services ARIN

Monoxide Network LLC ARIN

2023-12-20 22:23 UTC

ARIN

Merger acquisition

23.156.136.0/24

The Web Managers LLC ARIN

PureVoltage Hosting Inc. ARIN

2023-11-07 14:37 UTC

ARIN

Merger acquisition

23.174.48.0/24

CENTRAL VALLEY INTERNET ARIN

Central Valley Internet LLC ARIN

2023-11-07 14:08 UTC

ARIN

Merger acquisition

23.159.48.0/24

TALLEY TECHNICAL SERVICES LLC ARIN

Nextlink Broadband ARIN

2023-09-25 21:33 UTC

ARIN

Merger acquisition

23.150.144.0/24

ELPC ARIN

Fleettel Inc. ARIN

2023-08-22 22:47 UTC

ARIN

Merger acquisition

23.146.32.0/24

BH Telecom Corp. ARIN

FlexNetworks ARIN

2023-08-22 22:47 UTC

ARIN

Merger acquisition

23.169.32.0/24

Redbird Communications Inc ARIN

FlexNetworks ARIN

2023-08-08 15:27 UTC

ARIN

Merger acquisition

23.166.32.0/24

Fastnet Communications ARIN

FlexNetworks ARIN

2023-08-04 19:24 UTC

ARIN

Merger acquisition

23.163.48.0/24

COMMUNITY INTERNET PROVIDERS LLC ARIN

Point Broadband Fiber Holding, LLC ARIN

2023-07-05 22:26 UTC

ARIN

Merger acquisition

23.149.160.0/24

Desert iNET ARIN

BAM Broadband Opco, LLC ARIN

2023-06-20 18:58 UTC

ARIN

Merger acquisition

23.158.32.0/24

Volterra Inc ARIN

F5, Inc. ARIN

2023-05-15 21:49 UTC

ARIN

Merger acquisition

23.157.48.0/24

Ptera Inc. ARIN

Ziply Fiber ARIN

2023-01-20 23:28 UTC

ARIN

Merger acquisition

23.166.64.0/24

WIFI Midwest Inc ARIN

Wisper ISP, Inc. ARIN

2023-01-17 16:56 UTC

ARIN

Merger acquisition

23.182.0.0/24

Entegrus Inc. ARIN

Start Communications ARIN

2023-01-04 21:30 UTC

ARIN

Merger acquisition

23.139.176.0/24

FMT SJ LLC ARIN

Signia by Hilton San Jose ARIN

2022-12-15 19:50 UTC

ARIN

Merger acquisition

23.182.240.0/24

RG Fiber, LLC ARIN

Clearwave Communications 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/23.128.0.0-23.191.255.255.json