The number of active Solana USDC addresses surged by 18% in just four days, reaching a two-week high. This increase followed Meta's announcement of USDC payments on Solana and Polygon. Active addresses rose from 632,000 on April 26 to 745,000 by April 29, with 180,000 new addresses added in the last two days alone, marking the largest two-day increase in two weeks. In contrast, Ethereum USDC addresses did not experience similar growth during this period.