AN ATX SMT WAS CLRED TO CROSS RWY 26R AFTER AN ACR A320 HAD BEEN CLRED FOR TKOF ON THAT RWY. WX WAS CLR AND LATE NIGHT OP WITH THE TWR POS COMBINED. RPTR DOES NOT THINK THAT THE TWR CTLR OR THE A320 FLC SAW HIM CROSS AS THEY STARTED THEIR TKOF ROLL.

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IT IS A COMMON OCCURRENCE AT PHX; AFTER XX00 LCL; FOR ONE CTLR TO HANDLE CLRNC DELIVERY; GND FREQ; AND TWR FREQ. I WAS RETURNING FROM EAST CARGO TO OUR COMPANY HANGAR TIE DOWNS; VIA TXWYS; E; S; B; AND INSTRUCTED TO HOLD SHORT OF RWY 26R (HANGAR IS LOCATED IN THE EXTREME NW CORNER OF SKY HARBOR ARPT). I WAS MONITORING 120.9 (COMBINED TWR FREQ) AND XMITTING/RECEIVING ON 119.75 (COMBINED TWR FREQ). I HELD SHORT OF RWY 26R AT B7; JUST PRIOR TO ARRIVING SHORT OF THE HOLD LINE I HEARD THE CTLR CLR AN AIRBUS; OPERATED BY A LARGE CARRIER; FOR TKOF ON RWY 26R. PLT OF AIRBUS READ BACK INSTRUCTIONS. THE ANGLE I WAS HOLDING SHORT OF RWY 26R MADE IT IMPOSSIBLE TO SEE THE ARR END OF RWY 26R. AFTER APPROX 1 MIN MAYBE 2 MINS THE CTLR CLRED ME TO CROSS RWY 26R AT INTXN B7 AND CONTINUE TO PARKING. I READ BACK THE CLRNC SLOWLY AND CLRLY SO AS TO CONFIRM THIS WITH THE CTLR. PRIOR TO MOVING ONTO THE RWY I TURNED THE ACFT TO GET AS MUCH OF A VIEW OF THE ARR END OF RWY 26R AS POSSIBLE. FROM THAT VANTAGE POINT I SAW NOTHING AND COMMENCED XING RWY 26R. NOT FULL OF CONFIDENCE IN MY DECISION I USED A HIGHER THAN MY USUAL SPD IN XING. AS I WAS XING IT WAS CLR I WAS CORRECT IN MY ASSUMPTION THE AIRBUS HAD NOT DEPARTED AND WAS ROLLING ON RWY 26R. NOTHING WAS SAID BY EITHER ATC OR THE PLTS OF THE AIRBUS. IT IS POSSIBLE NOBODY; BESIDES MYSELF; KNEW THIS EVEN HAPPENED. IF I HAD NOT CROSSED THE RWY AT THE RATE I DID IT WOULD HAVE BEEN A DIFFERENT CONCLUSION. IT IS CLR THAT ATC WAS OVERLOADED. ALTHOUGH; I FEEL THE CTLR WORKING IS AMONG THE BEST THAT I HAVE WORKED WITH. THE DISTR OF HANDLING CLRNCS IS TIME CONSUMING AND I HAVE NOTICED ON SEVERAL OCCASIONS THAT THE LONE CTLR LOSES TRACK OF ACFT ON THE GND. IT WAS MY RESPONSIBILITY TO QUESTION THE CTLR'S INSTRUCTIONS IN THIS CASE. MY INSTINCTS WERE CORRECT IN THAT SOMETHING WAS NOT RIGHT. I AM THANKFUL I CROSSED THE RWY AT THE RATE THAT I DID. THE PROPER ACTIONS WOULD BE TO QUERY THE CTLR. I DID NOT FEEL IT WAS WISE TO DISTRACT ATC ANY MORE THAN NEEDED; SO NOTHING WAS SAID AFTER THE INCIDENT.