rirtracker

IPv4 range · 2,048 addresses

192.40.232.0/21

Now

ARIN statistics
Allocated (dated 2012-12-11) (US), in the latest file
Registry
ARIN
Holder
Zayo Bandwidth
From
ARIN's latest statistics and the latest transfer record

Latest change

Transfer log Merger/acquisition or reorganization

Reported
2025-06-20 (ARIN)
Confidence
Confirmed
Inventory
No effect on ARIN applicant inventory

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.

2025-06-20 ARIN Transfer log Merger/acquisition or reorganization Confirmed
Transfer log
Merger/acquisition: Allstream Corp. (ARIN) to Zayo Bandwidth (ARIN)
From
Allstream Corp. ARIN
To
Zayo Bandwidth ARIN
Inventory
No effect on ARIN applicant inventory

ARIN's transfer log records a merger, acquisition or reorganization from Allstream Corp. (ARIN) to Zayo Bandwidth (ARIN) on 2025-06-20 18:04 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 2025-06-20 18:04 UTC, Allstream Corp. (ARIN) to Zayo Bandwidth (ARIN); resources moved: 192.40.232.0/21 source · retrieved
  2. Before ARIN delegated statistics 2025-06-19 (produced 2025-06-19T13:01:13+00:00), before the report: allocated (dated 2012-12-11) source · retrieved
  3. After ARIN delegated statistics 2025-06-21 (produced 2025-06-21T13:01:14+00:00), after the report: allocated (dated 2012-12-11) source · retrieved
2012-12-11 ARIN + Add Apparent new issuance Strong inference
ARIN-Issued
Add 192.40.232.0-192.40.239.255
Inventory
Likely issued from ARIN-controlled inventory

No transfer record matches. ARIN's statistics show it not issued on 2012-12-10 and allocated (dated 2012-12-11) on 2012-12-12. (Until 2013-03-05, ARIN's statistics list only what's issued.) 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 2012-12-11: "Add 192.40.232.0-192.40.239.255" source · retrieved
  2. Before ARIN delegated statistics 2012-12-10, before the report: not issued source · retrieved
  3. After ARIN delegated statistics 2012-12-12, after the report: allocated (dated 2012-12-11) 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

Transfer records (1)

Date (UTC)LogTypeRange movedFromTo
ARINMerger acquisition192.40.232.0/21 Allstream Corp. ARINZayo Bandwidth 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/192.40.232.0-192.40.239.255.json