rirtracker

ASN

AS33313

This network elsewhere: its routes on BGP Report

Now

ARIN statistics
Assigned (dated 2013-06-24) (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
2026-06-01 (ARIN)
Confidence
Confirmed
Inventory
No effect on ARIN applicant inventory

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.

2026-06-01 ARIN Transfer log Merger/acquisition or reorganization Confirmed
Transfer log
Merger/acquisition: Crown Castle Fiber LLC (ARIN) to Zayo Bandwidth (ARIN)
From
Crown Castle Fiber LLC ARIN
To
Zayo Bandwidth ARIN
Inventory
No effect on ARIN applicant inventory

ARIN's transfer log records a merger, acquisition or reorganization from Crown Castle Fiber LLC (ARIN) to Zayo Bandwidth (ARIN) on 2026-06-01 16:06 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 2026-06-01 16:06 UTC, Crown Castle Fiber LLC (ARIN) to Zayo Bandwidth (ARIN); resources moved: AS33313 source · retrieved
  2. Before ARIN delegated statistics 2026-05-31 (produced 2026-05-31T13:00:19+00:00), before the report: assigned (dated 2013-06-24) source · retrieved
  3. After ARIN delegated statistics 2026-06-02 (produced 2026-06-02T13:00:19+00:00), after the report: assigned (dated 2013-06-24) source · retrieved
2024-01-03 ARIN Transfer log Merger/acquisition or reorganization Confirmed
Transfer log
Merger/acquisition: Wilcon (ARIN) to Crown Castle Fiber LLC (ARIN)
From
Wilcon ARIN
To
Crown Castle Fiber LLC ARIN
Inventory
No effect on ARIN applicant inventory

ARIN's transfer log records a merger, acquisition or reorganization from Wilcon (ARIN) to Crown Castle Fiber LLC (ARIN) on 2024-01-03 20:33 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 2024-01-03 20:33 UTC, Wilcon (ARIN) to Crown Castle Fiber LLC (ARIN); resources moved: AS33313 source · retrieved
  2. Before ARIN delegated statistics 2024-01-02 (produced 2024-01-02T14:00:34+00:00), before the report: assigned (dated 2013-06-24) source · retrieved
  3. After ARIN delegated statistics 2024-01-04 (produced 2024-01-04T14:00:34+00:00), after the report: assigned (dated 2013-06-24) source · retrieved
2013-01-11 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 2013-07-11. 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 2004-11-19) on 2013-01-10 and not issued on 2013-01-12. (Until 2013-03-05, ARIN's statistics list only what's issued.) Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed ASNs for 6 calendar months before reissuing them, so the estimated hold end is 2013-07-11. 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: AS33313 allocated on 2013-01-11, not listed on 2013-01-12 source · retrieved
  2. Before ARIN delegated statistics 2013-01-10, before the report: allocated (dated 2004-11-19) source · retrieved
  3. After ARIN delegated statistics 2013-01-12, after the report: not issued 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

Transfer records (2)

Date (UTC)LogTypeRange movedFromTo
ARINMerger acquisitionAS33313 Crown Castle Fiber LLC ARINZayo Bandwidth ARIN
ARINMerger acquisitionAS33313 Wilcon ARINCrown Castle Fiber LLC ARIN

Every record in the ARIN, RIPE NCC, APNIC, LACNIC and AFRINIC transfer logs that moved any part of this ASN (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: asn/33313.json