diff --git a/frames/nack_range.go b/frames/nack_range.go
deleted file mode 100644
index ebb1a29f..00000000
--- a/frames/nack_range.go
+++ /dev/null
@@ -1,22 +0,0 @@
-package frames
-
-import "github.com/lucas-clemente/quic-go/protocol"
-
-// NackRange is a NACK range
-type NackRange struct {
-	FirstPacketNumber protocol.PacketNumber
-	LastPacketNumber  protocol.PacketNumber
-}
-
-// Len gets the lengths of a NackRange
-func (n *NackRange) Len() uint64 {
-	return uint64(n.LastPacketNumber) - uint64(n.FirstPacketNumber)
-}
-
-// ContainsPacketNumber checks if a packetNumber is contained in a NACK range
-func (n *NackRange) ContainsPacketNumber(packetNumber protocol.PacketNumber) bool {
-	if packetNumber >= n.FirstPacketNumber && packetNumber <= n.LastPacketNumber {
-		return true
-	}
-	return false
-}
diff --git a/frames/nack_range_test.go b/frames/nack_range_test.go
deleted file mode 100644
index 5a5d09bc..00000000
--- a/frames/nack_range_test.go
+++ /dev/null
@@ -1,39 +0,0 @@
-package frames
-
-import (
-	"github.com/lucas-clemente/quic-go/protocol"
-	. "github.com/onsi/ginkgo"
-	. "github.com/onsi/gomega"
-)
-
-var _ = Describe("NackRange", func() {
-	Context("Length", func() {
-		It("calculates the length for a NACK range with only one packet", func() {
-			nackRange := NackRange{FirstPacketNumber: 2, LastPacketNumber: 2}
-			Expect(nackRange.Len()).To(Equal(uint64(0)))
-		})
-
-		It("calculates the length for a NACK range with more than one packet", func() {
-			nackRange := NackRange{FirstPacketNumber: 10, LastPacketNumber: 20}
-			Expect(nackRange.Len()).To(Equal(uint64(10)))
-		})
-	})
-
-	Context("ContainsPacketNumber", func() {
-		It("determines if a packet is in a NACK range with only one packet", func() {
-			nackRange := NackRange{FirstPacketNumber: 2, LastPacketNumber: 2}
-			Expect(nackRange.ContainsPacketNumber(protocol.PacketNumber(1))).To(BeFalse())
-			Expect(nackRange.ContainsPacketNumber(protocol.PacketNumber(3))).To(BeFalse())
-			Expect(nackRange.ContainsPacketNumber(protocol.PacketNumber(2))).To(BeTrue())
-		})
-
-		It("determines if a packet is in a NACK range with more than one packet", func() {
-			nackRange := NackRange{FirstPacketNumber: 10, LastPacketNumber: 20}
-			Expect(nackRange.ContainsPacketNumber(protocol.PacketNumber(1))).To(BeFalse())
-			Expect(nackRange.ContainsPacketNumber(protocol.PacketNumber(10))).To(BeTrue())
-			Expect(nackRange.ContainsPacketNumber(protocol.PacketNumber(15))).To(BeTrue())
-			Expect(nackRange.ContainsPacketNumber(protocol.PacketNumber(20))).To(BeTrue())
-			Expect(nackRange.ContainsPacketNumber(protocol.PacketNumber(21))).To(BeFalse())
-		})
-	})
-})