Summary

  • APNIC’s 31 October cumulative transfer file contains 11 October-dated cross-RIR IPv4 rows arriving at APNIC, carrying 33,792 addresses. Six IPv4 rows leave APNIC for another RIR, carrying 3,072. The inward address count is exactly eleven times the outward one.
  • Five ARIN-to-APNIC rows dated 21 October account for 22,528 incoming addresses, precisely two-thirds of the cross-RIR inflow. The public record is a transfer ledger, with its latest October transaction dated 27 October.

APNIC’s transfer file has the look of a warehouse inventory: prefixes, old holders, new holders, dates. Add the from_rir and to_rir columns and the warehouse develops a front door. In the October-dated records, 33,792 IPv4 addresses crossed that door into APNIC. Only 3,072 crossed out. The ratio is an exact 11:1, measured in addresses rather than transactions.

The inward side has nine rows from ARIN, totalling 31,744 addresses, and two from RIPE NCC, totalling 2,048. The outward side has two IPv4 rows bound for ARIN, 2,048 addresses, and four bound for RIPE NCC, 1,024. There is also one outbound ASN row; an autonomous system number contributes zero to the IPv4 arithmetic. Twenty same-registry IPv4 rows add 16,896 addresses. Together, the 37 IPv4 rows sum to 53,760, the file’s full October-dated IPv4 transfer volume.

One day carries much of the weight. On 21 October, five ARIN-origin rows arrived with 22,528 addresses. Three /20s went to Bharti Airtel Limited, one /19 to Dream Information Laboratory LLC, and one /21 to SalesForce.com, Inc. They make up two-thirds of the incoming total. Counting rows alone would hide that concentration: eleven inward IPv4 rows versus six outward rows sounds modest until prefix size enters the room.

APNIC’s log-format specification defines the resource and registry-direction fields used here. The snapshot is dated 31 October, and the latest October transfer in the selected file is dated 27 October. The 30,720-address difference is a balance of recorded cross-RIR transfer amounts in this file. Contract values and subsequent routing changes would require separate evidence.

The ledger gives a sharper picture than a generic claim that IPv4 is “moving.” It shows which registry boundary the blocks crossed, which direction dominated, and how five lines carried most of the inbound weight. A market with scarce portable resources deserves arithmetic that keeps its arrows attached.