diff --git a/Telegram/Resources/langs/lang.strings b/Telegram/Resources/langs/lang.strings
index 108951a3cf..753e2e7171 100644
--- a/Telegram/Resources/langs/lang.strings
+++ b/Telegram/Resources/langs/lang.strings
@@ -836,6 +836,11 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_settings_disconnect" = "Disconnect";
 "lng_settings_connected_title" = "Connected websites";
 
+"lng_settings_suggestion_phone_number_title" = "Is {phone} still your number?";
+"lng_settings_suggestion_phone_number_about" = "Keep your number up to date to ensure you can always log into Telegram. {link}";
+"lng_settings_suggestion_phone_number_about_link" = "https://telegram.org/faq#q-i-have-a-new-phone-number-what-do-i-do";
+"lng_settings_suggestion_phone_number_change" = "Please change your phone number in the official Telegram app on your phone as soon as possible.";
+
 "lng_settings_power_menu" = "Battery and Animations";
 "lng_settings_power_title" = "Power Usage";
 "lng_settings_power_subtitle" = "Power saving options";
diff --git a/Telegram/SourceFiles/settings/settings_main.cpp b/Telegram/SourceFiles/settings/settings_main.cpp
index a7b96d7c96..30c76ec733 100644
--- a/Telegram/SourceFiles/settings/settings_main.cpp
+++ b/Telegram/SourceFiles/settings/settings_main.cpp
@@ -36,6 +36,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "ui/widgets/menu/menu_add_action_callback.h"
 #include "ui/widgets/continuous_sliders.h"
 #include "ui/widgets/popup_menu.h"
+#include "ui/text/format_values.h"
 #include "ui/text/text_utilities.h"
 #include "ui/toast/toast.h"
 #include "ui/new_badges.h"
@@ -44,12 +45,14 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "info/profile/info_profile_badge.h"
 #include "info/profile/info_profile_emoji_status_panel.h"
 #include "data/components/credits.h"
+#include "data/components/promo_suggestions.h"
 #include "data/data_user.h"
 #include "data/data_session.h"
 #include "data/data_cloud_themes.h"
 #include "data/data_chat_filters.h"
 #include "lang/lang_cloud_manager.h"
 #include "lang/lang_instance.h"
+#include "lang/lang_keys.h"
 #include "storage/localstorage.h"
 #include "main/main_session.h"
 #include "main/main_session_settings.h"
@@ -69,6 +72,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "base/platform/base_platform_info.h"
 #include "styles/style_settings.h"
 #include "styles/style_info.h"
+#include "styles/style_layers.h" // boxLabel
 #include "styles/style_menu_icons.h"
 
 #include <QtGui/QGuiApplication>
@@ -78,6 +82,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 namespace Settings {
 namespace {
 
+constexpr auto kSugValidatePhone = "VALIDATE_PHONE_NUMBER"_cs;
+
 class Cover final : public Ui::FixedHeightWidget {
 public:
 	Cover(
@@ -397,6 +403,95 @@ void SetupLanguageButton(
 	});
 }
 
+void SetupValidatePhoneNumberSuggestion(
+		not_null<Window::SessionController*> controller,
+		not_null<Ui::VerticalLayout*> container,
+		Fn<void(Type)> showOther) {
+	if (!controller->session().promoSuggestions().current(
+			kSugValidatePhone.utf8())) {
+		return;
+	}
+	const auto mainWrap = container->add(
+		object_ptr<Ui::SlideWrap<Ui::VerticalLayout>>(
+			container,
+			object_ptr<Ui::VerticalLayout>(container)));
+	const auto content = mainWrap->entity();
+	Ui::AddSubsectionTitle(
+		content,
+		tr::lng_settings_suggestion_phone_number_title(
+			lt_phone,
+			rpl::single(
+				Ui::FormatPhone(controller->session().user()->phone()))),
+		QMargins(
+			st::boxRowPadding.left()
+				- st::defaultSubsectionTitlePadding.left(),
+			0,
+			0,
+			0));
+	const auto label = content->add(
+		object_ptr<Ui::FlatLabel>(
+			content,
+			tr::lng_settings_suggestion_phone_number_about(
+				lt_link,
+				tr::lng_collectible_learn_more(
+				) | Ui::Text::ToLink(
+					tr::lng_settings_suggestion_phone_number_about_link(
+						tr::now)),
+				Ui::Text::WithEntities),
+			st::boxLabel),
+		st::boxRowPadding);
+	label->setClickHandlerFilter([=, weak = base::make_weak(controller)](
+			const auto &...) {
+		UrlClickHandler::Open(
+			tr::lng_settings_suggestion_phone_number_about_link(tr::now),
+			QVariant::fromValue(ClickHandlerContext{
+				.sessionWindow = weak,
+			}));
+		return false;
+	});
+
+	Ui::AddSkip(content);
+	Ui::AddSkip(content);
+
+	const auto wrap = content->add(
+		object_ptr<Ui::FixedHeightWidget>(
+			content,
+			st::inviteLinkButton.height),
+		st::inviteLinkButtonsPadding);
+	const auto yes = Ui::CreateChild<Ui::RoundButton>(
+		wrap,
+		tr::lng_box_yes(),
+		st::inviteLinkButton);
+	yes->setTextTransform(Ui::RoundButton::TextTransform::NoTransform);
+	yes->setClickedCallback([=] {
+		controller->session().promoSuggestions().dismiss(
+			kSugValidatePhone.utf8());
+		 mainWrap->toggle(false, anim::type::normal);
+	});
+	const auto no = Ui::CreateChild<Ui::RoundButton>(
+		wrap,
+		tr::lng_box_no(),
+		st::inviteLinkButton);
+	no->setTextTransform(Ui::RoundButton::TextTransform::NoTransform);
+	no->setClickedCallback([=] {
+		controller->uiShow()->show(
+			Ui::MakeInformBox(
+				tr::lng_settings_suggestion_phone_number_change()));
+	});
+
+	wrap->widthValue() | rpl::start_with_next([=](int width) {
+		const auto buttonWidth = (width - st::inviteLinkButtonsSkip) / 2;
+		yes->setFullWidth(buttonWidth);
+		no->setFullWidth(buttonWidth);
+		yes->moveToLeft(0, 0, width);
+		no->moveToRight(0, 0, width);
+	}, wrap->lifetime());
+	Ui::AddSkip(content);
+	Ui::AddSkip(content);
+	Ui::AddDivider(content);
+	Ui::AddSkip(content);
+}
+
 void SetupSections(
 		not_null<Window::SessionController*> controller,
 		not_null<Ui::VerticalLayout*> container,
@@ -404,6 +499,11 @@ void SetupSections(
 	Ui::AddDivider(container);
 	Ui::AddSkip(container);
 
+	SetupValidatePhoneNumberSuggestion(
+		controller,
+		container,
+		showOther);
+
 	const auto addSection = [&](
 			rpl::producer<QString> label,
 			Type type,