rirtracker

IPv4 range · 32,768 addresses

157.250.128.0/17

Now

ARIN statistics
Allocated (dated 2025-04-07) (only part of the range) (US), in the latest file
Registry
Not known
Holder
Not looked up

Latest change

Not in ARIN-Issued Inter-RIR transfer out of ARIN

Reported
2013-04-22 (ARIN)
Confidence
Confirmed
Inventory
Transferred out of ARIN administration; not offered to ARIN applicants

Timeline (3)

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.

2013-04-22 ARIN Not in ARIN-Issued Inter-RIR transfer out of ARIN Confirmed
From
Arbella Mutual Ins. ARIN
To
(no name given) APNIC
Same transfer
APNIC recorded it too: APNIC, 2013-04-19.
Inventory
Transferred out of ARIN administration; not offered to ARIN applicants

ARIN's transfer log records a transfer from Arbella Mutual Ins. (ARIN) to an unnamed organization (APNIC) on 2013-04-22 15:32 UTC: it left ARIN for APNIC. ARIN-Issued didn't list this change; it is not a new allocation and is not offered to ARIN applicants.

Evidence (4) · classifier 1.4.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 157.250.128.0/17 assigned on 2013-04-22, not listed on 2013-04-23 source · retrieved
  2. Transfer log Transfer log: RESOURCE_TRANSFER on 2013-04-22 15:32 UTC, Arbella Mutual Ins. (ARIN) to (no name) (APNIC); resources moved: 157.250.128.0/17 source · retrieved
  3. Before ARIN delegated statistics 2013-04-21 (produced 2013-04-21T05:05:40+00:00), before the report: assigned (dated 1990-07-15) source · retrieved
  4. After ARIN delegated statistics 2013-04-23 (produced 2013-04-23T05:05:57+00:00), after the report: not listed source · retrieved
Classification history for this change (4 versions)
  1. : Inter-RIR transfer out of ARIN, confirmed (classifier 1.3.0)
  2. : Inter-RIR transfer out of ARIN, confirmed (classifier 1.3.1)
  3. : Inter-RIR transfer out of ARIN, confirmed (classifier 1.3.2)
  4. : Inter-RIR transfer out of ARIN, confirmed (classifier 1.4.0) current
2013-04-19 APNIC Transfer log Inter-RIR transfer into APNIC Confirmed
Transfer log
Transfer: ArbellaMutualIns (ARIN) to Elmedia Co.,Ltd. (APNIC)
From
ArbellaMutualIns ARIN
To
Elmedia Co.,Ltd. APNIC
Same transfer
Also a change at ARIN, the sending registry: ARIN, 2013-04-22. Lists that cover every registry show it there.
Inventory
Transferred into APNIC administration; not a new issuance

APNIC's transfer log records a transfer from ArbellaMutualIns (ARIN) to Elmedia Co.,Ltd. (APNIC) on 2013-04-19 03:43 UTC: it came to APNIC from ARIN. It was already issued by another registry, so this is not a new issuance.

Evidence (3) · classifier 1.4.0,
  1. Transfer log Transfer log: RESOURCE_TRANSFER on 2013-04-19 03:43 UTC, ArbellaMutualIns (ARIN) to Elmedia Co.,Ltd. (APNIC); resources moved: 157.250.128.0/17 source · retrieved
  2. Before APNIC delegated statistics 2013-04-19, before the change: not listed source · retrieved
  3. After APNIC delegated statistics 2013-04-20, after the change: allocated (dated 1992-02-07) source · retrieved
Classification history for this change (4 versions)
  1. : Inter-RIR transfer into APNIC, confirmed (classifier 1.3.0)
  2. : Inter-RIR transfer into APNIC, confirmed (classifier 1.3.1)
  3. : Inter-RIR transfer into APNIC, confirmed (classifier 1.3.2)
  4. : Inter-RIR transfer into APNIC, confirmed (classifier 1.4.0) current
2013-01-22 ARIN + Add Unresolved change Observed only
ARIN-Issued
Add 157.250.128.0-157.250.255.255
Inventory
Inventory effect unknown

No transfer record matches. ARIN's statistics show it assigned (dated 2012-09-07) on 2013-01-21 and assigned (dated 2013-01-22) on 2013-01-23. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registration was replaced with one for a different holder record, and public sources don't say why (a transfer not yet logged, a return and reissue, or an organization record change).

Evidence (3) · classifier 1.4.0,
  1. ARIN-Issued ARIN-Issued report for 2013-01-22: "Add 157.250.128.0-157.250.255.255" source · retrieved
  2. Before ARIN delegated statistics 2013-01-21, before the report: assigned (dated 2012-09-07) source · retrieved
  3. After ARIN delegated statistics 2013-01-23, after the report: assigned (dated 2013-01-22) source · retrieved
Classification history for this change (4 versions)
  1. : Unresolved change, observed only (classifier 1.3.0)
  2. : Unresolved change, observed only (classifier 1.3.1)
  3. : Unresolved change, observed only (classifier 1.3.2)
  4. : Unresolved change, observed only (classifier 1.4.0) current

Changes to overlapping ranges

DateRegistryRangeRecorded asWhat happened
2026-10-01APNIC157.250.176.0/20Transfer logIntra-APNIC transfer
2026-06-29APNIC157.250.128.0/19Transfer logIntra-APNIC transfer
2025-04-08APNIC157.250.192.0/20Transfer logTransfer out of APNIC
2025-04-07ARIN157.250.192.0/20+ AddTransfer into ARIN
2024-04-23APNIC157.250.160.0/20Transfer logTransfer out of APNIC
2024-04-22RIPE NCC157.250.160.0/20Transfer logTransfer into the RIPE NCC
2021-07-02APNIC157.250.208.0/20Transfer logIntra-APNIC transfer
2020-07-20APNIC157.250.224.0/20Transfer logIntra-APNIC transfer
2017-06-29APNIC157.250.240.0/20Transfer logIntra-APNIC transfer
2012-09-07ARIN157.250.64.0 - 157.250.255.255+ AddRange re-cut

Transfer records (11)

Date (UTC)LogTypeRange movedFromTo
APNICResource transfer157.250.176.0/20 Rebyc Inc. APNICSpaceman Co. Ltd. APNIC
APNICResource transfer157.250.128.0/19 Rebyc Inc. APNICJapan Network Information Center/tdnc APNIC
APNICResource transfer157.250.192.0/20 Rebyc Inc. APNICINTER-83 ARIN
ARINResource transfer157.250.192.0/20 Rebyc Inc. APNICInterserver, Inc ARIN
APNICResource transfer157.250.160.0/20 Rebyc Inc. APNICORG-TA906-RIPE RIPE NCC
RIPE NCCResource transfer157.250.160.0/20 (no name given) APNICCibicom A/S RIPE NCC
APNICResource transfer157.250.208.0/20 Rebyc Inc. APNICJapan Network Information Center/qtnet APNIC
APNICResource transfer157.250.224.0/20 Rebyc Inc. APNICJapan Network Information Center/fitweb APNIC
APNICResource transfer157.250.240.0/20 Rebyc Inc. APNICJapan Network Information Center/catvwink APNIC
ARINResource transfer157.250.128.0/17 Arbella Mutual Ins. ARIN(no name given) APNIC
APNICResource transfer157.250.128.0/17 ArbellaMutualIns ARINElmedia Co.,Ltd. APNIC

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/157.250.128.0-157.250.255.255.json