rirtracker

IPv4 range · 1,024 addresses

156.9.172.0/22

Now

ARIN statistics
Allocated (dated 2026-10-07) on 2026-10-09 (US)
Registry
ARIN
Holder
HKSOFT L.L.C. HL-785
From
RDAP, looked up 2026-10-09 20:14 UTC

Latest change

+ Add Apparent reissuance of previously removed resource

Reported
2026-10-07
Confidence
Observed only Provisional
Inventory
Likely issued from ARIN-controlled inventory

Timeline since 2026-01-01 (2)

2026-10-07 + Add Apparent reissuance of previously removed resource Observed only Provisional
ARIN-Issued
Add 156.9.172.0-156.9.175.255
Inventory
Likely issued from ARIN-controlled inventory

No transfer record matches. ARIN's statistics show it available on 2026-10-06 and allocated (dated 2026-10-07) on 2026-10-08. The tracker saw this range released from hold on 2026-10-06 (156.9.0.0-156.9.255.255), so it appears to have been issued again from ARIN's pool. Another change to this range was reported the day before or after (2026-10-06: Remove 156.9.0.0-156.9.255.255), so the before-and-after statistics may include it.

Evidence (3) · classifier 1.0.0,
  1. ARIN-Issued ARIN-Issued report for 2026-10-07: "Add 156.9.172.0-156.9.175.255" source · retrieved
  2. Before ARIN delegated statistics 2026-10-06 (produced 2026-10-06T13:00:21+00:00), before the report: available source · retrieved
  3. After ARIN delegated statistics 2026-10-08 (produced 2026-10-08T13:00:23+00:00), after the report: allocated (dated 2026-10-07) source · retrieved
2026-10-07 − Remove Change to ARIN's own pool record Observed only Provisional
ARIN-Issued
Remove 156.9.172.0-156.9.175.255
Inventory
Part of the issuance reported the same day

ARIN's statistics show it available on 2026-10-06 and allocated (dated 2026-10-07) on 2026-10-08. ARIN removed its own pool record for this range as part of issuing it: the same report adds 156.9.172.0-156.9.175.255. The issuance is explained on that line. Another change to this range was reported the day before or after (2026-10-06: Remove 156.9.0.0-156.9.255.255), so the before-and-after statistics may include it.

Evidence (3) · classifier 1.0.0,
  1. ARIN-Issued ARIN-Issued report for 2026-10-07: "Remove 156.9.172.0-156.9.175.255" source · retrieved
  2. Before ARIN delegated statistics 2026-10-06 (produced 2026-10-06T13:00:21+00:00), before the report: available source · retrieved
  3. After ARIN delegated statistics 2026-10-08 (produced 2026-10-08T13:00:23+00:00), after the report: allocated (dated 2026-10-07) source · retrieved

Changes to overlapping ranges

DateRangeARIN actionWhat happened
2026-10-06156.9.0.0/16− RemoveARIN pool record

Transfer records

ARIN's transfer log has no transfer of any part of this IPv4 range.

RDAP lookups

Looked upWhyRegistryHandleOrganizationStatusLast changed
First seen ARINNET-156-9-172-0-1HKSOFT L.L.C. HL-785active2026-10-07
First seen ARINNET-156-9-172-0-1HKSOFT L.L.C. HL-785active2026-10-07

Organization-level details only; contact details are never kept. RDAP shows the registration when it was looked up, not in the past.

This page as data: ip/156.9.172.0-156.9.175.255.json