I sat at my local airport (KALB) for several hours on Monday and received no squitters on any ACARS frequency. There were no acknowledgments on VDL2 for data sent from aircraft on the ground, either. However, I did infer the VDL2 hex codes for KALB based on where the landed aircraft's messages were addressed.
Below is my current ground station list for MultiPSK. It is based on the one published by the software author, but sorted and edited for clarity.
10105A [CYVR Vancouver International 49°12'N 123°13'W] [Vancouver, BC]
1025FA [CYVR Vancouver International 49°12'N 123°13'W] [Vancouver, BC]
2CDA57 [CYVR Vancouver International 49°12'N 123°13'W] [Vancouver, BC]
1024FA [CYYZ Lester B Pearson 43°42'N 079°36'W] [Toronto, ON]
1030AA [CYYZ Lester B Pearson 43°42'N 079°36'W] [Toronto, ON]
2CE757 [CYYZ Lester B Pearson 43°42'N 079°36'W] [Toronto, ON]
214AB7 [EBBR Zaventem 50°54'N 004°30'E] [Brussels]
234838 [EDDF Frankfurt Am Main International 50°00'N 008°36'E] [Frankfurt]
219DD7 [EDDK Koeln 50°54'N 007°06'E] [Bonn]
219DD8 [EDDK Koeln 50°54'N 007°06'E] [Bonn]
225661 [EDDL Duesseldorf 51°18'N 006°48'E] [Duesseldorf]
225677 [EDDL Duesseldorf 51°18'N 006°48'E] [Duesseldorf]
10910A [EDDS Echter 48°42'N 009°12'E] [Stuttgart]
241597 [EFHK Vantaa 60°18'N 025°00'E] [Helsinki]
24159F [EFHK Vantaa 60°18'N 025°00'E] [Helsinki]
212317 [EGBB Birmingham 52°30'N 001°48'W] [Birmingham]
260F37 [EGLC London City 51°30'N 000°00'E] [London]
10987A [EGSS Stansted 51°54'N 000°12'E] [London]
10900A [EHAM Schiphol 136.975 MHz 52°18'N 004°48'E] [Amsterdam]
11900A [EHAM Schiphol 136.875 MHz 52°18'N 004°48'E] [Amsterdam]
20B661 [EHAM Schiphol 136.875 MHz 52°18'N 004°48'E] [Amsterdam]
20B662 [EHAM Schiphol 136.875 MHz 52°18'N 004°48'E] [Amsterdam]
20B665 [EHAM Schiphol 136.775 MHz 52°18'N 004°48'E] [Amsterdam]
20B677 [EHAM Schiphol 136.975 MHz 52°18'N 004°48'E] [Amsterdam]
20B678 [EHAM Schiphol 136.975 MHz 52°18'N 004°48'E] [Amsterdam]
10920A [EPWA Chopin 52°12'N 021°00'E] [Warsaw]
2B86E1 [EPWA Chopin 136.875 MHz 52°12'N 020°54'E] [Warsaw]
2B86F7 [EPWA Chopin 52°12'N 020°54'E] [Warsaw]
10147A [KALB Albany International 42°44'N 073°49'W] [Albany, NY]
10349A [KALB Albany International 42°44'N 073°49'W] [Albany, NY]
10412A [KALB Albany International 42°44'N 073°49'W] [Albany, NY]
10495A [KATL Hartsfield-Jackson International 33°36'N 084°24'W] [Atlanta, GA]
10550A [KATL Hartsfield-Jackson International 33°36'N 084°24'W] [Atlanta, GA]
20D197 [KATL Hartsfield-Jackson International 33°36'N 084°24'W] [Atlanta, GA]
20D198 [KATL Hartsfield-Jackson International 33°36'N 084°24'W] [Atlanta, GA]
10204A [KBWI Baltimore Washington International 39°12'N 076°42'W] [Baltimore, MD]
1054BA [KBWI Baltimore Washington International 39°12'N 076°42'W] [Baltimore, MD]
10416A [KCMH John Glenn International 40°00'N 082°54'W] [Columbus, OH]
10545A [KDCA Reagan National 38°54'N 077°00'W] [Washington, DC]
220C37 [KDCA Reagan National 38°54'N 077°00'W] [Washington, DC]
10205A [KDEN Denver International 39°54'N 104°42'W] [Denver, CO]
10345A [KDEN Denver International 39°54'N 104°42'W] [Denver, CO]
1050AA [KDEN Denver International 39°54'N 104°42'W] [Denver, CO]
2215D7 [KDEN Denver International 39°54'N 104°42'W] [Denver, CO]
2215D8 [KDEN Denver International 39°54'N 104°42'W] [Denver, CO]
2215D9 [KDEN Denver International 39°54'N 104°42'W] [Denver, CO]
10142A [KIAD Washington Dulles International 38°54'N 077°30'W] [Dulles, VA]
10509A [KIAD Washington Dulles International 39°00'N 077°30'W] [Dulles, VA]
10209A [KIND Indianapolis International 39°42'N 086°18'W] [Indianapolis, IN]
10543A [KIND Indianapolis International 39°42'N 086°18'W] [Indianapolis, IN]
24B898 [KIND Indianapolis International 39°42'N 086°18'W] [Indianapolis, IN]
260677 [KLAS Mc Carran International 36°06'N 115°12'W] [Las Vegas, NV]
10146A [KLAX Los Angeles International 33°54'N 118°24'W] [Los Angeles, CA]
10346A [KLAX Los Angeles International 33°54'N 118°24'W] [Los Angeles, CA]
10540A [KLAX Los Angeles International 33°54'N 118°24'W] [Los Angeles, CA]
260717 [KLAX Los Angeles International 33°54'N 118°24'W] [Los Angeles, CA]
260718 [KLAX Los Angeles International 33°54'N 118°24'W] [Los Angeles, CA]
260719 [KLAX Los Angeles International 33°54'N 118°24'W] [Los Angeles, CA]
268D37 [KMCI Kansas City International 39°18'N 094°42'W] [Kansas City, MO]
268DF8 [KMCO Orlando International 28°24'N 081°18'W] [Orlando, FL]
26CE17 [KMSP Wold-Chamberlain International 44°54'N 093°12'W] [Minneapolis, MN]
10342A [KPIT Pittsburgh International 40°30'N 080°12'W] [Pittsburgh, PA]
282697 [KPIT Pittsburgh International 40°30'N 080°12'W] [Pittsburgh, PA]
10208A [KSAN San Diego International 32°42'N 117°12'W] [San Diego, CA]
10553A [KSAN San Diego International 32°42'N 117°12'W] [San Diego, CA]
2985D7 [KSAN San Diego International 32°42'N 117°12'W] [San Diego, CA]
2985D8 [KSAN San Diego International 32°42'N 117°12'W] [San Diego, CA]
29B078 [KSLC Salt Lake City International 40°48'N 112°00'W] [Salt Lake City, UT]
10406A [KSTL Lambert International 38°42'N 090°24'W] [St. Louis, MO]
10554A [KSTL Lambert International Airport 38°42'N 090°24'W] [St. Louis, MO]
29D197 [KSTL Lambert International 38°42'N 090°24'W] [St. Louis, MO]
2125F7 [LEBB Sondica 43°18'N 002°54'W] [Bilbao]
210DD7 [LEBL Barcelona-El Prat 41°18'N 002°06'E] [Barcelona]
210DD8 [LEBL Barcelona-El Prat 41°18'N 002°06'E] [Barcelona]
10909A [LFPO Orly International 48°42'N 002°24'E] [Paris]
27CB37 [LFPO Orly International 48°42'N 002°24'E] [Paris]
233D37 [LPFR Algarve 37°18'N 008°36'W][Faro]
102C8A [PHNL Daniel K Inouye International 21°18'N 157°54'W] [Honolulu, HI]
104D9A [PHNL Daniel K Inouye International 21°18'N 157°54'W] [Honolulu, HI]
F00643 [RJAA Narita International] [Tokyo]
F00644 [RJAA Narita International] [Tokyo]
F00645 [RJTT Haneda International] [Tokyo]
F00646 [RJTT Haneda International] [Tokyo]
10A48A [YSSY Kingsford Smith] [Sydney]
29E497 [YSSY Kingsford Smith] [Sydney]
29E498 [YSSY Kingsford Smith] [Sydney]