rirtracker

ASN

AS203939

Now

ARIN statistics
Assigned (dated 2026-03-05) on 2026-10-09 (US)
Registry
ARIN
Holder
Mosaic Data Services, Inc.
From
ARIN's statistics for 2026-10-09 and the latest transfer record

Latest change

+ Add Inter-RIR transfer into ARIN

Reported
2026-03-05
Confidence
Confirmed
Inventory
Transferred into ARIN administration; not a new issuance

Timeline since 2026-01-01 (1)

2026-03-05 + Add Inter-RIR transfer into ARIN Confirmed
ARIN-Issued
Add AS203939
From
Mosaic Data Services, Inc. RIPE NCC
To
Mosaic Data Services, Inc. ARIN
Inventory
Transferred into ARIN administration; not a new issuance

ARIN's transfer log records a transfer from Mosaic Data Services, Inc. (RIPE NCC) to Mosaic Data Services, Inc. (ARIN) on 2026-03-05 15:07 UTC: it came to ARIN from RIPE NCC. It was already issued by another registry, so this is not a new issuance.

Evidence (4) · classifier 1.0.0,
  1. ARIN-Issued ARIN-Issued report for 2026-03-05: "Add AS203939" source · retrieved
  2. Transfer log Transfer log: RESOURCE_TRANSFER on 2026-03-05 15:07 UTC, Mosaic Data Services, Inc. (RIPE NCC) to Mosaic Data Services, Inc. (ARIN); resources moved: AS203939 source · retrieved
  3. Before ARIN delegated statistics 2026-03-04 (produced 2026-03-04T14:00:50+00:00), before the report: not listed source · retrieved
  4. After ARIN delegated statistics 2026-03-06 (produced 2026-03-06T14:00:52+00:00), after the report: assigned (dated 2026-03-05) source · retrieved

Transfer records (1)

Date (UTC)TypeRange movedFromTo
Resource transferAS203939 Mosaic Data Services, Inc. RIPE NCCMosaic Data Services, Inc. ARIN

Every record in ARIN's transfer log that moved any part of this ASN, 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: asn/203939.json