Different centres have used different pull-down technologies for the Exome sequencing done for the 1000 Genomes project.
Baylor College of Medicine used NimbleGen SeqCap_EZ_Exome_v2 for its Solid based exome sequencing. For its more recent Illumina based exome sequencing it used a custom array HSGC VCRome
The Broad Institute has used Agilent SureSelect_All_Exon_V2 (https://earray.chem.agilent.com/earray/ using ELID: S0293689).
The BGI used NimbleGen SeqCap EZ exome V1 for the phase 1 samples and NimbleGen SeqCap_EZ_Exome_v2 for phase 2 and 3 (the v1 files were obtained from BGI directly; they are discontinued from Nimblegen).
The Washington University Genome Center used Agilent SureSelect_All_Exon_V2 (https://earray.chem.agilent.com/earray/ using ELID: S0293689) for phase 1 and phase 2, and NimbleGen SeqCap_EZ_Exome v3 for phase 3