ARIN logs 16-row Tullett Prebon to TP ICAP resource transfer

ARIN Moved a /16 and Two ASNs in One Second. The Small Print Runs to 16 Rows.

Why it matters

Tullett Prebon's resource record did not travel as a single block. Fourteen IPv4 ranges and two network identities arrived together on ARIN's M&A ledger, with one /16 swallowing almost the entire address count.

Theo March2 November 2026Reading Time 2 minLast update: 2 November 2026

ARIN lists one /16, thirteen /24s and two ASNs at the same 9 October timestamp. Illustration is conceptual.

Summary

ARIN's transfer export contains 16 MERGER_ACQUISITION rows from Tullett Prebon Americas Corp. to TP ICAP Financials and Commodities LLC, all dated 9 October 2026 at 20:37:21 UTC.
The rows carry one /16, thirteen /24s and AS16833 and AS20179. The IPv4 ranges total 68,864 addresses; the /16 alone contributes 65,536.

The ARIN original export gives this move 16 lines rather than one neat headline. Every line names the same source, recipient, timestamp and MERGER_ACQUISITION type. Two lines are ASN transfers: AS16833 and AS20179. Fourteen others move IPv4 ranges. That pairing matters. A prefix count alone would miss the network identifiers transferred in the same administrative instant.

The arithmetic is lopsided. 170.198.0.0/16 accounts for 65,536 of the 68,864 IPv4 addresses, just over 95%. Thirteen /24s account for the other 3,328. They sit in four separate neighborhoods: three at 192.149.224.0.226.255, two at 192.251.15.0.16.255, five at 198.99.64.0.68.255, and three at 198.177.150.0.152.255. Each row transfers its whole recorded range. The small blocks barely change the total, but they make the resource portfolio much less simple than the /16 suggests.

ARIN's file labels the transfer type; it does not publish a corporate transaction instrument, price or deployment date. The 16 rows establish the registry handoff: fourteen IPv4 ranges and two ASNs. The resource ledger is exact where the corporate narrative is absent.