diff --git a/broadcastradio/common/utils2x/include/broadcastradio-utils-2x/Utils.h b/broadcastradio/common/utils2x/include/broadcastradio-utils-2x/Utils.h
index bac11fd..e3134f7 100644
--- a/broadcastradio/common/utils2x/include/broadcastradio-utils-2x/Utils.h
+++ b/broadcastradio/common/utils2x/include/broadcastradio-utils-2x/Utils.h
@@ -27,6 +27,14 @@
 namespace broadcastradio {
 namespace utils {
 
+enum class FrequencyBand {
+    UNKNOWN,
+    FM,
+    AM_LW,
+    AM_MW,
+    AM_SW,
+};
+
 V2_0::IdentifierType getType(uint32_t typeAsInt);
 V2_0::IdentifierType getType(const V2_0::ProgramIdentifier& id);
 
@@ -64,6 +72,16 @@
 IdentifierIterator end(const V2_0::ProgramSelector& sel);
 
 /**
+ * Guesses band from the frequency value.
+ *
+ * The band bounds are not exact to cover multiple regions.
+ * The function is biased towards success, i.e. it never returns
+ * FrequencyBand::UNKNOWN for correct frequency, but a result for
+ * incorrect one is undefined (it doesn't have to return UNKNOWN).
+ */
+FrequencyBand getBand(uint64_t frequency);
+
+/**
  * Checks, if {@code pointer} tunes to {@channel}.
  *
  * For example, having a channel {AMFM_FREQUENCY = 103.3}:
@@ -105,6 +123,7 @@
  */
 bool isSupported(const V2_0::Properties& prop, const V2_0::ProgramSelector& sel);
 
+bool isValid(const V2_0::ProgramIdentifier& id);
 bool isValid(const V2_0::ProgramSelector& sel);
 
 V2_0::ProgramIdentifier make_identifier(V2_0::IdentifierType type, uint64_t value);