rirtracker

IPv4 range · 65,536 addresses

141.133.0.0/16

Now

ARIN statistics
Not listed on 2026-10-09
Registry
RIPE NCC
Holder
Fiber Ltd
From
the latest transfer record

Latest change

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

Reported
2026-03-18
Confidence
Confirmed
Inventory
Transferred out of ARIN administration; not offered to ARIN applicants

Timeline since 2026-01-01 (1)

2026-03-18 Not in ARIN-Issued Inter-RIR transfer out of ARIN Confirmed
From
Bentley University ARIN
To
Fiber Ltd RIPE NCC
Inventory
Transferred out of ARIN administration; not offered to ARIN applicants

ARIN's transfer log records a transfer from Bentley University (ARIN) to Fiber Ltd (RIPE NCC) on 2026-03-18 14:30 UTC: it left ARIN for RIPE NCC. ARIN-Issued didn't list this change; it is not a new allocation and is not offered to ARIN applicants.

Evidence (4) · classifier 1.0.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 141.133.0.0/16 allocated on 2026-03-18, not listed on 2026-03-19 source · retrieved
  2. Transfer log Transfer log: RESOURCE_TRANSFER on 2026-03-18 14:30 UTC, Bentley University (ARIN) to Fiber Ltd (RIPE NCC); resources moved: 141.133.0.0/16 source · retrieved
  3. Before ARIN delegated statistics 2026-03-17 (produced 2026-03-17T13:00:51+00:00), before the report: allocated (dated 1992-10-27) source · retrieved
  4. After ARIN delegated statistics 2026-03-19 (produced 2026-03-19T13:00:50+00:00), after the report: not listed source · retrieved

Transfer records (1)

Date (UTC)TypeRange movedFromTo
Resource transfer141.133.0.0/16 Bentley University ARINFiber Ltd RIPE NCC

Every record in ARIN's transfer log that moved any part of this IPv4 range, back to 2009.

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/141.133.0.0-141.133.255.255.json