IFR ACFT ARE ASSIGNED THE SAME BEACON CODE DUE TO A LACK OF ARTCC INTERFACE.

Narrative

ROCHESTER AIRSPACE IS BOUNDED BY ZBW TO THE E. WE ARE UNDER THE ZOB COMPUTER. AT LEAST A DOZEN TIMES A DAY; ACFT WILL COME OVER FROM SYRACUSE APCH ON A DIFFERENT STRIP CODE THAN THE CODE ASSIGNED BY OUR COMPUTER; ZOB. TODAY; ACR X DEPARTED SYR LNDG ROC TAGGED UP AS ACR X AND ACR Y. ACR Y WAS AN INBOUND FROM ORD THAT CROSSED BUF VOR XX00Z. (XX00 LCL). ACR X WAS ASSIGNED AN EFGH CODE BY ZBW COMPUTER AND ACR Y THE SAME CODE BY ZOB COMPUTER. ZOB COMPUTER HAD A CODE OF ABCD ASSIGNED TO THE ACR X FLT PLAN. THERE NEEDS TO BE A WAY FOR THE CTR COMPUTERS TO INTERFACE TO RESOLVE THIS PROB! CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: FACILITY ADVISED THAT IFR ACFT FROM SYR TWR ENRTE ARE AT 10000 FT AND BELOW. TFC ABOVE IS WORKED BY THE CTR AND THE SAME BEACON CODE PROB DOES NOT EXIST; ONLY WHEN THE ACFT ARE WORKED TWR ENRTE. THE DATA TAG SHOWS A CALLSIGN; GND SPD; BUT NO ALT. THE CALLSIGN APPEARS AS 2 IDENTS. THE FACILITY HAS NOT HAD ANY CONFLICTS BECAUSE OF THIS PROB. THERE ARE NO PLANS UNDERWAY TO RECTIFY THIS PROB.