rirtracker

IPv4 range · 65,536 addresses

104.204.0.0/16

Now

ARIN statistics
Allocated (24 records, dated 2025-05-30 to 2026-08-06) (only part of the range) (US), in the latest file
Registry
Not known
Holder
Not looked up

Latest change

Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable)

Reported
2022-04-11 (ARIN)
Confidence
Strong inference
Inventory
Possible future reissue candidate after hold

Hold

Removed
2022-04-11 (ARIN)
Estimated hold end
2022-06-10 (from ARIN's published rule)
Now
Possible reissue candidate; not confirmed available.

Timeline (2)

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.

2022-04-11 ARIN Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2022-06-10. Possible reissue candidate after this date; not confirmed available.

Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 2014-09-10) on 2022-04-10 and reserved on 2022-04-12. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 space for 60 days before reissuing it, so the estimated hold end is 2022-06-10. This does not confirm availability.

Evidence (3) · classifier 1.4.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 104.204.0.0/16 allocated on 2022-04-11, reserved on 2022-04-12 source · retrieved
  2. Before ARIN delegated statistics 2022-04-10 (produced 2022-04-10T13:00:10+00:00), before the report: allocated (dated 2014-09-10) source · retrieved
  3. After ARIN delegated statistics 2022-04-12 (produced 2022-04-12T13:00:10+00:00), after the report: reserved source · retrieved
Classification history for this change (4 versions)
  1. : Removed (return, revocation or reclamation not publicly distinguishable), strong inference (classifier 1.3.0)
  2. : Removed (return, revocation or reclamation not publicly distinguishable), strong inference (classifier 1.3.1)
  3. : Removed (return, revocation or reclamation not publicly distinguishable), strong inference (classifier 1.3.2)
  4. : Removed (return, revocation or reclamation not publicly distinguishable), strong inference (classifier 1.4.0) current
2014-09-10 ARIN + Add Apparent new issuance Strong inference
ARIN-Issued
Add 104.204.0.0-104.204.255.255
Inventory
Likely issued from ARIN-controlled inventory

No transfer record matches. ARIN's statistics show it available on 2014-09-09 and allocated (dated 2014-09-10) on 2014-09-11. 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 2014-09-10: "Add 104.204.0.0-104.204.255.255" source · retrieved
  2. Before ARIN delegated statistics 2014-09-09 (produced 2014-09-09T05:04:59+00:00), before the report: available source · retrieved
  3. After ARIN delegated statistics 2014-09-11 (produced 2014-09-11T05:04:54+00:00), after the report: allocated (dated 2014-09-10) source · retrieved
Classification history for this change (4 versions)
  1. : Apparent reissuance of previously removed resource, strong inference (classifier 1.3.0)
  2. : Apparent reissuance of previously removed resource, 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

12 pieces of this block transferred since 2008-12-01, 39% of it so far.

DatePieceWhat happenedFromTo
2025-05-30 104.204.176.0/20Intra-ARIN transfer ACN Communication Services, LLC ARINFortinet Inc. ARIN
2025-06-04 104.204.232.0/22Intra-ARIN transfer ACN Communication Services, LLC ARINReinsurance Group of America, Incorporated ARIN
2025-06-05 104.204.250.0/23Intra-ARIN transfer ACN Communication Services, LLC ARINZeroOutages ARIN
2025-06-05 104.204.252.0/23Intra-ARIN transfer ACN Communication Services, LLC ARINbitprojects ARIN
2025-06-09 104.204.144.0/20Intra-ARIN transfer ACN Communication Services, LLC ARINSpaceX Services, Inc. ARIN
2025-06-12 104.204.244.0/22Transfer out of ARIN ACN Communication Services, LLC ARIN Batobajo Holding GmbH RIPE NCC
2025-06-20 104.204.216.0/21Intra-ARIN transfer ACN Communication Services, LLC ARINAME Hosting LLC ARIN
2025-06-20 104.204.254.0/24Intra-ARIN transfer ACN Communication Services, LLC ARINMilbank LLP ARIN
2025-07-09 104.204.96.0/19Intra-ARIN transfer ACN Communication Services, LLC ARINNebius Inc. ARIN
2025-07-21 104.204.200.0/21Transfer out of ARIN ACN Communication Services, LLC ARINCleardocks LLC RIPE NCC
2025-09-03 104.204.140.0/22Intra-ARIN transfer ACN Communication Services, LLC ARINAllnodes Inc ARIN
2026-06-16 104.204.56.0/22Intra-ARIN transfer ACN Communication Services, LLC ARINIdeaTek Telcom, LLC ARIN

Changes to overlapping ranges

DateRegistryRangeRecorded asWhat happened
2026-08-17APNIC104.204.48.0/21Transfer logTransfer into APNIC
2026-08-17ARIN104.204.48.0/21Not in ARIN-IssuedTransfer out of ARIN
2026-08-06ARIN104.204.60.0/22+ AddIntra-ARIN transfer
2026-07-09ARIN104.204.32.0/20+ AddIntra-ARIN transfer
2026-07-06ARIN104.204.0.0/19+ AddIntra-ARIN transfer
2026-06-22ARIN104.204.64.0/19+ AddIntra-ARIN transfer
2026-06-16ARIN104.204.56.0/22+ AddIntra-ARIN transfer
2025-12-12ARIN104.204.128.0/21+ AddIntra-ARIN transfer
2025-11-19ARIN104.204.160.0/20+ AddIntra-ARIN transfer
2025-09-08ARIN104.204.136.0/22+ AddIntra-ARIN transfer
2025-09-03ARIN104.204.140.0/22+ AddIntra-ARIN transfer
2025-08-25ARIN104.204.192.0/21+ AddIntra-ARIN transfer
2025-07-21ARIN104.204.200.0/21Transfer logTransfer out of ARIN
2025-07-21RIPE NCC104.204.200.0/21Transfer logTransfer into the RIPE NCC
2025-07-09ARIN104.204.96.0/19+ AddIntra-ARIN transfer
2025-07-02ARIN104.204.208.0/21+ AddIntra-ARIN transfer
2025-07-02ARIN104.204.248.0/23+ AddIntra-ARIN transfer
2025-07-01ARIN104.204.255.0/24+ AddIntra-ARIN transfer
2025-06-26ARIN104.204.236.0/22+ AddIntra-ARIN transfer
2025-06-20ARIN104.204.216.0/21+ AddIntra-ARIN transfer
2025-06-20ARIN104.204.240.0/22+ AddIntra-ARIN transfer
2025-06-20ARIN104.204.254.0/24+ AddIntra-ARIN transfer
2025-06-17ARIN104.204.224.0/21+ AddIntra-ARIN transfer
2025-06-12ARIN104.204.244.0/22Transfer logTransfer out of ARIN
2025-06-12RIPE NCC104.204.244.0/22Transfer logTransfer into the RIPE NCC
2025-06-09ARIN104.204.144.0/20+ AddIntra-ARIN transfer
2025-06-05ARIN104.204.250.0/23+ AddIntra-ARIN transfer
2025-06-05ARIN104.204.252.0/23+ AddIntra-ARIN transfer
2025-06-04ARIN104.204.232.0/22+ AddIntra-ARIN transfer
2025-05-30ARIN104.204.176.0/20+ AddIntra-ARIN transfer

Transfer records (30)

Date (UTC)LogTypeRange movedFromTo
ARINResource transfer104.204.48.0/21 ACN Communication Services, LLC ARINIX Telecom APNIC
APNICResource transfer104.204.48.0/21 ACNCO ARINIX Telecom SDN. BHD. APNIC
ARINResource transfer104.204.60.0/22 ACN Communication Services, LLC ARINAdaptix Networks LLC ARIN
ARINResource transfer104.204.32.0/20 ACN Communication Services, LLC ARINHippo Technologies LLC ARIN
ARINResource transfer104.204.0.0/19 ACN Communication Services, LLC ARINNebius Inc. ARIN
ARINResource transfer104.204.64.0/19 ACN Communication Services, LLC ARINRedoubt Networks ARIN
ARINResource transfer104.204.56.0/22 ACN Communication Services, LLC ARINIdeaTek Telcom, LLC ARIN
ARINResource transfer104.204.128.0/21 ACN Communication Services, LLC ARININTERNET COMMUNICATIONS INC. ARIN
ARINResource transfer104.204.160.0/20 ACN Communication Services, LLC ARINAspire Broadband, LLC ARIN
ARINResource transfer104.204.136.0/22 ACN Communication Services, LLC ARINCloudMesh Labs LLC ARIN
ARINResource transfer104.204.140.0/22 ACN Communication Services, LLC ARINAllnodes Inc ARIN
ARINResource transfer104.204.192.0/21 ACN Communication Services, LLC ARINNANA NET, LLC ARIN
RIPE NCCResource transfer104.204.200.0/21 (no name given) ARINcleardocks LLC RIPE NCC
ARINResource transfer104.204.200.0/21 ACN Communication Services, LLC ARINCleardocks LLC RIPE NCC
ARINResource transfer104.204.96.0/19 ACN Communication Services, LLC ARINNebius Inc. ARIN
ARINResource transfer104.204.208.0/21 ACN Communication Services, LLC ARINGreat Lakes Energy Connections Inc. ARIN
ARINResource transfer104.204.248.0/23 ACN Communication Services, LLC ARINGreat Lakes Energy Connections Inc. ARIN
ARINResource transfer104.204.255.0/24 ACN Communication Services, LLC ARINFortinet Inc. ARIN
ARINResource transfer104.204.236.0/22 ACN Communication Services, LLC ARINWCCTA ARIN
ARINResource transfer104.204.240.0/22 ACN Communication Services, LLC ARINPima Community College ARIN
ARINResource transfer104.204.216.0/21 ACN Communication Services, LLC ARINAME Hosting LLC ARIN
ARINResource transfer104.204.254.0/24 ACN Communication Services, LLC ARINMilbank LLP ARIN
ARINResource transfer104.204.224.0/21 ACN Communication Services, LLC ARINFusion Voice and Data Corp. ARIN
RIPE NCCResource transfer104.204.244.0/22 (no name given) ARINBatobajo Holding GmbH RIPE NCC
ARINResource transfer104.204.244.0/22 ACN Communication Services, LLC ARIN Batobajo Holding GmbH RIPE NCC
ARINResource transfer104.204.144.0/20 ACN Communication Services, LLC ARINSpaceX Services, Inc. ARIN
ARINResource transfer104.204.250.0/23 ACN Communication Services, LLC ARINZeroOutages ARIN
ARINResource transfer104.204.252.0/23 ACN Communication Services, LLC ARINbitprojects ARIN
ARINResource transfer104.204.232.0/22 ACN Communication Services, LLC ARINReinsurance Group of America, Incorporated ARIN
ARINResource transfer104.204.176.0/20 ACN Communication Services, LLC ARINFortinet Inc. 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/104.204.0.0-104.204.255.255.json