diff --git a/CHANGELOG.md b/CHANGELOG.md
index cd4ef396..57c44cbc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,8 +14,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - `Me::username` and `Deref<Target = User>` implementation for `Me` ([#197][pr197])
 - `Me::{mention, tme_url}` ([#197][pr197])
 - `AllowedUpdate::ChatJoinRequest` ([#201][pr201])
-- `ChatId::{is_user, is_group, is_channel, to_bare}` functions and `BareChatId` type [#198][pr198]
-
+- `ChatId::{is_user, is_group, is_channel_or_supergroup}` functions [#198][pr198]
 
 [pr197]: https://github.com/teloxide/teloxide-core/pull/197
 [pr198]: https://github.com/teloxide/teloxide-core/pull/198
diff --git a/src/adaptors/throttle.rs b/src/adaptors/throttle.rs
index 7d75ec7f..4e10be25 100644
--- a/src/adaptors/throttle.rs
+++ b/src/adaptors/throttle.rs
@@ -645,7 +645,7 @@ enum ChatIdHash {
 impl ChatIdHash {
     fn is_channel(&self) -> bool {
         match self {
-            &Self::Id(id) => id.is_channel(),
+            &Self::Id(id) => id.is_channel_or_supergroup(),
             Self::ChannelUsernameHash(_) => true,
         }
     }
diff --git a/src/types/chat_id.rs b/src/types/chat_id.rs
index e4951727..cca06e41 100644
--- a/src/types/chat_id.rs
+++ b/src/types/chat_id.rs
@@ -22,9 +22,10 @@ pub struct ChatId(pub i64);
 ///
 /// `BareChatId` can be created by [`ChatId::to_bare`].
 #[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
-pub enum BareChatId {
+pub(crate) enum BareChatId {
     User(UserId),
     Group(u64),
+    /// Note: supergroups are considered channels.
     Channel(u64),
 }
 
@@ -42,16 +43,14 @@ impl ChatId {
     }
 
     /// Returns `true` if this is an id of a channel.
-    ///
-    /// Note: supergroup is considered a channel.
-    pub fn is_channel(self) -> bool {
+    pub fn is_channel_or_supergroup(self) -> bool {
         matches!(self.to_bare(), BareChatId::Channel(_))
     }
 
     /// Converts this id to "bare" MTProto peer id.
     ///
     /// See [`BareChatId`] for more.
-    pub fn to_bare(self) -> BareChatId {
+    pub(crate) fn to_bare(self) -> BareChatId {
         use BareChatId::*;
 
         match self.0 {
@@ -73,7 +72,8 @@ impl From<UserId> for ChatId {
 
 impl BareChatId {
     /// Converts bare chat id back to normal bot API [`ChatId`].
-    pub fn to_bot_api(self) -> ChatId {
+    #[allow(unused)]
+    pub(crate) fn to_bot_api(self) -> ChatId {
         use BareChatId::*;
 
         match self {
@@ -146,7 +146,6 @@ mod tests {
             1666111087,
             1 << 20,
             (1 << 35) | 123456,
-            (1 << 40) - 1,
         ];
 
         // rust 2021 when :(
diff --git a/src/types/recipient.rs b/src/types/recipient.rs
index e7a29672..469aac97 100644
--- a/src/types/recipient.rs
+++ b/src/types/recipient.rs
@@ -19,16 +19,6 @@ pub enum Recipient {
     ChannelUsername(String),
 }
 
-impl Recipient {
-    #[allow(unused)]
-    pub(crate) fn is_channel(&self) -> bool {
-        match self {
-            Recipient::Id(id) => id.is_channel(),
-            Recipient::ChannelUsername(_) => true,
-        }
-    }
-}
-
 impl From<UserId> for Recipient {
     fn from(id: UserId) -> Self {
         Self::Id(id.into())