Currently the 2N2222 is sourced by manufacturers such as Central Semiconductor, Comset Semiconductor, Fairchild Semiconductor, Micro Commercial Components (MCC), Microsemi Corporation, NTE Electronics, STMicrolectronics and OPTEK Technology.
There are a few related transistors such as the 2N2907 (PNP complement), 2N3904 (1/3 the current with similar characteristics) and the 2N2219 (higher power dissipation rating).
|2N2222AQCSM||TT Electronics / Semelab|
2N2222 Circuit Diagram
2N2222 Pinout Diagram