diff --git a/PhonebookService.Infrastructure/ModelConfigurations/PhonebookRecordEntityTypeConfiguration.cs b/PhonebookService.Infrastructure/ModelConfigurations/PhonebookRecordEntityTypeConfiguration.cs
new file mode 100644
index 0000000..f5a3437
--- /dev/null
+++ b/PhonebookService.Infrastructure/ModelConfigurations/PhonebookRecordEntityTypeConfiguration.cs
@@ -0,0 +1,24 @@
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+using PhonebookService.Domain.Models;
+
+namespace PhonebookService.Infrastructure.ModelConfigurations;
+
+/// <summary>
+/// EF entity model configuration class for <see cref="Domain.Models.PhonebookRecord"/>
+/// </summary>
+public class PhonebookRecordEntityTypeConfiguration
+	: IEntityTypeConfiguration<PhonebookRecord>
+{
+	public void Configure(EntityTypeBuilder<PhonebookRecord> builder)
+	{
+		builder.HasKey(i => i.Id);
+		builder.Property(i => i.FirstName).IsRequired();
+		builder.Property(i => i.LastName).IsRequired();
+		builder.Property(i => i.Email).IsRequired();
+		builder.Property(i => i.PhoneNumber).IsRequired();
+		builder.Property(i => i.StreetAddress).IsRequired();
+		builder.Property(i => i.City).IsRequired();
+		builder.Property(i => i.ZipCode).IsRequired();
+	}
+}
diff --git a/PhonebookService.Infrastructure/PhonebookContext.cs b/PhonebookService.Infrastructure/PhonebookContext.cs
new file mode 100644
index 0000000..0817f04
--- /dev/null
+++ b/PhonebookService.Infrastructure/PhonebookContext.cs
@@ -0,0 +1,24 @@
+using Microsoft.EntityFrameworkCore;
+using PhonebookService.Domain.Models;
+using PhonebookService.Infrastructure.ModelConfigurations;
+
+namespace PhonebookService.Infrastructure;
+
+/// <summary>
+/// Phonebook EF database context
+/// </summary>
+public class PhonebookContext : DbContext
+{
+	public DbSet<PhonebookRecord> Records { get; set; }
+
+#pragma warning disable CS8618 // Non-nullable property must contain a non-null value when exiting constructor. Consider declaring the property as nullable.
+
+	public PhonebookContext(DbContextOptions<PhonebookContext> options) : base(options) {}
+
+#pragma warning restore CS8618 // Non-nullable property must contain a non-null value when exiting constructor. Consider declaring the property as nullable.
+
+	protected override void OnModelCreating(ModelBuilder builder)
+	{
+		builder.ApplyConfiguration(new PhonebookRecordEntityTypeConfiguration());
+	}
+}
diff --git a/PhonebookService.Infrastructure/PhonebookInfrastructureExtensions.cs b/PhonebookService.Infrastructure/PhonebookInfrastructureExtensions.cs
new file mode 100644
index 0000000..476ee42
--- /dev/null
+++ b/PhonebookService.Infrastructure/PhonebookInfrastructureExtensions.cs
@@ -0,0 +1,35 @@
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.EntityFrameworkCore;
+using PhonebookService.Domain.Repositories;
+using PhonebookService.Infrastructure.Repositories;
+
+namespace PhonebookService.Infrastructure;
+
+/// <summary>
+/// Extension class that helps to setup infrastructure layer
+/// </summary>
+public static class PhonebookInfrastructureExtensions
+{
+	/// <summary>
+	/// Configure infrastructure layer
+	/// </summary>
+	/// <param name="services">Collection of webapp services</param>
+	/// <param name="configuration">Webapp configuration entity</param>
+	/// <param name="enableSensitiveDataLogging">If set true, EF will not hide personal data (e.g. passwords) when logging. Use only on debug!</param>
+	public static IServiceCollection ConfigureInfrastructure(this IServiceCollection services, IConfiguration configuration, bool enableSensitiveDataLogging = false)
+	{
+		services.AddDbContext<PhonebookContext>(options =>
+		{
+			options.UseInMemoryDatabase("PhonebookDatabase");
+			// options.UseSqlServer(configuration.GetConnectionString("PhonebookDatabase"));
+
+			if (enableSensitiveDataLogging)
+				options.EnableSensitiveDataLogging();
+		});
+
+		services.AddScoped<IPhonebookRepository, PhonebookRepository>();
+
+		return services;
+	}
+}
diff --git a/PhonebookService.Infrastructure/PhonebookService.Infrastructure.csproj b/PhonebookService.Infrastructure/PhonebookService.Infrastructure.csproj
index c56912c..3d9d015 100644
--- a/PhonebookService.Infrastructure/PhonebookService.Infrastructure.csproj
+++ b/PhonebookService.Infrastructure/PhonebookService.Infrastructure.csproj
@@ -6,6 +6,8 @@
 
 	<ItemGroup>
 	  <PackageReference Include="Microsoft.EntityFrameworkCore.InMemory" Version="7.0.3" />
+	  <PackageReference Include="Microsoft.Extensions.Configuration.Abstractions" Version="7.0.0" />
+	  <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="7.0.0" />
 	</ItemGroup>
 
 	<PropertyGroup>
diff --git a/PhonebookService.Infrastructure/Repositories/PhonebookRepository.cs b/PhonebookService.Infrastructure/Repositories/PhonebookRepository.cs
new file mode 100644
index 0000000..94d6120
--- /dev/null
+++ b/PhonebookService.Infrastructure/Repositories/PhonebookRepository.cs
@@ -0,0 +1,81 @@
+using PhonebookService.Domain.Models;
+using PhonebookService.Domain.Queries;
+using PhonebookService.Domain.Repositories;
+
+namespace PhonebookService.Infrastructure.Repositories;
+
+/// <summary>
+/// Phonebook repository implementation
+/// </summary>
+public class PhonebookRepository : IPhonebookRepository
+{
+	private readonly PhonebookContext _context;
+
+	public PhonebookRepository(PhonebookContext context)
+	{
+		_context = context ?? throw new ArgumentNullException(nameof(context));
+	}
+
+	/// <inheritdoc/>
+	public async Task<PhonebookRecord> CreateItemAsync(PhonebookRecord item)
+	{
+		var entry = await _context.Records.AddAsync(item);
+
+		await _context.SaveChangesAsync();
+
+		return entry.Entity;
+	}
+
+	/// <inheritdoc/>
+	public async Task DeleteItemAsync(PhonebookRecord item)
+	{
+		_context.Records.Remove(item);
+
+		await _context.SaveChangesAsync();
+	}
+
+	/// <inheritdoc/>
+	public async Task<PhonebookRecord?> GetItemByIdAsync(int id)
+	{
+		var entry = await _context.Records.FindAsync(id);
+
+		return entry;
+	}
+
+	/// <inheritdoc/>
+	public Task<ICollection<PhonebookRecord>> GetItemsAsync(PhonebookFilterQuery query)
+	{
+		IQueryable<PhonebookRecord> dbQuery = _context.Records;
+
+		if (query.FirstName is not null)
+			dbQuery = dbQuery.Where(i => i.FirstName.Contains(query.FirstName));
+
+		if (query.Phone is not null)
+			dbQuery = dbQuery.Where(i => i.PhoneNumber == query.Phone);
+
+		if (query.City is not null)
+			dbQuery = dbQuery.Where(i => i.City == query.City);
+
+		if (query.ZipCode is not null)
+			dbQuery = dbQuery.Where(i => i.ZipCode == query.ZipCode);
+
+		if (query.Sort == SortMode.Ascending)
+			dbQuery = dbQuery.OrderBy(i => i.FirstName);
+		else if (query.Sort == SortMode.Descending)
+			dbQuery = dbQuery.OrderByDescending(i => i.FirstName);
+
+		ICollection<PhonebookRecord> list = dbQuery.Skip((query.Page - 1) * 5).Take(5).ToList();
+
+		return Task.FromResult(list);
+	}
+
+	/// <inheritdoc/>
+	public async Task<PhonebookRecord> UpdateItemAsync(PhonebookRecord item)
+	{
+		var entry = _context.Records.Update(item);
+
+		await _context.SaveChangesAsync();
+
+		return entry.Entity;
+	}
+}