# Address Book Constants Get the constants you use to specify Address Book information. ## Topics ### Data Type Constants [Address Keys](/documentation/AddressBook/address-keys) The keys used to specify the different fields in a `kABAddressProperty`. [Default Person Properties](/documentation/AddressBook/default-person-properties) The properties that a person record contains by default. [Default Group Properties](/documentation/AddressBook/default-group-properties) The properties that a group record contains by default. Developers can add their own properties with the `ABGroup` method [`addPropertiesAndTypes(_:)`](/documentation/AddressBook/ABGroup/addPropertiesAndTypes(_:)) [Default Multivalue List Labels](/documentation/AddressBook/default-multivalue-list-labels) The default labels contained in the Address Book database for specifying different values in a multivalue list. Users can also add their own labels. [Generic Multivalue List Labels](/documentation/AddressBook/generic-multivalue-list-labels) The generic labels contained in the Address Book database for specifying different values in a multivalue list. [Multivalue Property](/documentation/AddressBook/multivalue-property) A multivalue property type. [Default Record Properties](/documentation/AddressBook/default-record-properties) Properties common to all types of records. [Property Types](/documentation/AddressBook/property_types) The possible [`ABPropertyType`](/documentation/AddressBook/ABPropertyType) types for `ABRecord` properties: ### Social Media Constants [Instant Messaging Keys](/documentation/AddressBook/instant-messaging-keys) The keys used to specify the different fields in a [`kABInstantMessageProperty`](/documentation/AddressBook/kABInstantMessageProperty) property. [Instant Messaging Services](/documentation/AddressBook/instant-messaging-services) The predefined constants are used to identify instant messaging services. [Social Profile Services](/documentation/AddressBook/social-profile-services) The predefined constants are used to identify social networking services. ### Errors [`ABAddressBookErrorDomain`](/documentation/AddressBook/ABAddressBookErrorDomain) Error domain returning errors reported by an address book object. [Error Codes](/documentation/AddressBook/error-codes) Errors codes used by the Address Book framework. ### Miscellaneous [`ABMultipleValueSelection`](/documentation/AddressBook/ABMultipleValueSelection) The user can select multiple values. [`ABNoValueSelection`](/documentation/AddressBook/ABNoValueSelection) The user cannot select individual values. [`ABSingleValueSelection`](/documentation/AddressBook/ABSingleValueSelection) The user can select a single value. [`ABPeoplePickerDisplayedPropertyDidChangeNotification`](/documentation/AddressBook/ABPeoplePickerDisplayedPropertyDidChangeNotification) Posted when the displayed property in the record list is changed. [`ABPeoplePickerGroupSelectionDidChangeNotification`](/documentation/AddressBook/ABPeoplePickerGroupSelectionDidChangeNotification) Posted when the selection in the group list is changed. [`ABPeoplePickerNameSelectionDidChangeNotification`](/documentation/AddressBook/ABPeoplePickerNameSelectionDidChangeNotification) Posted when the selection in the name list is changed. [`ABPeoplePickerValueSelectionDidChangeNotification`](/documentation/AddressBook/ABPeoplePickerValueSelectionDidChangeNotification) Posted when the selection in a multivalue property is changed. [`kABAlternateBirthdayComponentsProperty`](/documentation/AddressBook/kABAlternateBirthdayComponentsProperty) The components that represent a birthday in a non-Gregorian calendar. [`kABBitsInBitFieldMatch`](/documentation/AddressBook/kABBitsInBitFieldMatch) Search for elements that match the bits in ABPersonFlags. [`kABContainsSubString`](/documentation/AddressBook/kABContainsSubString) Search for elements that contain the value. [`kABContainsSubStringCaseInsensitive`](/documentation/AddressBook/kABContainsSubStringCaseInsensitive) Search for elements that contain the value,ignoring case. [`kABDatabaseChangedExternallyNotification`](/documentation/AddressBook/kABDatabaseChangedExternallyNotification) Posted when a process other than the current one has changed the Address Book database. [`kABDatabaseChangedNotification`](/documentation/AddressBook/kABDatabaseChangedNotification) Posted when this process has changed the Address Book database. [`kABDefaultNameOrdering`](/documentation/AddressBook/kABDefaultNameOrdering) Default name ordering (whether a person’s first name or last name is displayed first) in the Address Book application. [`kABDeletedRecords`](/documentation/AddressBook/kABDeletedRecords) Records that have been deleted. [`kABDoesNotContainSubString`](/documentation/AddressBook/kABDoesNotContainSubString) Search for elements that do not contain the value. [`kABDoesNotContainSubStringCaseInsensitive`](/documentation/AddressBook/kABDoesNotContainSubStringCaseInsensitive) Search for elements that do not contain the value, ignoring case. [`kABEqual`](/documentation/AddressBook/kABEqual) Search for elements that are equal to the value. [`kABEqualCaseInsensitive`](/documentation/AddressBook/kABEqualCaseInsensitive) Search for elements that are equal to the value,ignoring case. [`kABFirstNameFirst`](/documentation/AddressBook/kABFirstNameFirst) First name is displayed first in Address Book. [`kABGreaterThan`](/documentation/AddressBook/kABGreaterThan) Search for elements that are greater than thevalue. [`kABGreaterThanOrEqual`](/documentation/AddressBook/kABGreaterThanOrEqual) Search for elements that are greater than orequal to the value. [`kABInsertedRecords`](/documentation/AddressBook/kABInsertedRecords) Records that have been inserted. [`kABLastNameFirst`](/documentation/AddressBook/kABLastNameFirst) Last name is displayed first in Address Book. [`kABLessThan`](/documentation/AddressBook/kABLessThan) Search for elements that are less than thevalue. [`kABLessThanOrEqual`](/documentation/AddressBook/kABLessThanOrEqual) Search for elements that are less than or equalto the value. [`kABMultiValueInvalidIdentifier`](/documentation/AddressBook/kABMultiValueInvalidIdentifier) Invalid multivalue property. [`kABNameOrderingMask`](/documentation/AddressBook/kABNameOrderingMask) Used in conjunction with `kABDefaultNameOrdering`, `kABFirstNameFirst`, and `kABLastNameFirst` to determine name ordering. [`kABNotEqual`](/documentation/AddressBook/kABNotEqual) Search for elements that are not equal to thevalue. [`kABNotEqualCaseInsensitive`](/documentation/AddressBook/kABNotEqualCaseInsensitive) Search for elements that are not equal to the value, ignoring case. [`kABNotWithinIntervalAroundToday`](/documentation/AddressBook/kABNotWithinIntervalAroundToday) Search for elements that are *not* within a time interval (in seconds) forward or backward from today. [`kABNotWithinIntervalAroundTodayYearless`](/documentation/AddressBook/kABNotWithinIntervalAroundTodayYearless) Search for elements that are *not* within a time interval (in seconds) forward or backward from this day in any year. [`kABNotWithinIntervalFromToday`](/documentation/AddressBook/kABNotWithinIntervalFromToday) Search for elements that are *not* within a time interval (in seconds) forward from today. [`kABNotWithinIntervalFromTodayYearless`](/documentation/AddressBook/kABNotWithinIntervalFromTodayYearless) Search for elements that are *not* within a time interval (in seconds) forward from this day in any year. [`kABOrganizationPhoneticProperty`](/documentation/AddressBook/kABOrganizationPhoneticProperty) The phonetic representation of an organization name. [`kABPrefixMatch`](/documentation/AddressBook/kABPrefixMatch) Search for elements that begin with the value. [`kABPrefixMatchCaseInsensitive`](/documentation/AddressBook/kABPrefixMatchCaseInsensitive) Search for elements that begin with the value, ignoring case. [`kABPropertyInvalidID`](/documentation/AddressBook/kABPropertyInvalidID) Indicates an invalid value for a property ID. [`kABRecordInvalidID`](/documentation/AddressBook/kABRecordInvalidID) Records with this ID have not been saved to the Address Book database. [`kABSearchAnd`](/documentation/AddressBook/kABSearchAnd) Join the search elements together with theAND operand. [`kABSearchOr`](/documentation/AddressBook/kABSearchOr) Join the search elements together with theOR operand. [`kABShowAsCompany`](/documentation/AddressBook/kABShowAsCompany) Record is displayed as a company. [`kABShowAsMask`](/documentation/AddressBook/kABShowAsMask) Used in conjunction with `kABShowAsPerson` and `kABShowAsCompany` to determine record configuration. [`kABShowAsPerson`](/documentation/AddressBook/kABShowAsPerson) Record is displayed as a person. [`kABShowAsResource`](/documentation/AddressBook/kABShowAsResource) Record is displayed as a resource. [`kABShowAsRoom`](/documentation/AddressBook/kABShowAsRoom) Record is displayed as a room. [`kABSocialProfileServiceTencentWeibo`](/documentation/AddressBook/kABSocialProfileServiceTencentWeibo) The user’s Tencent Weibo profile identifier. [`kABSocialProfileServiceYelp`](/documentation/AddressBook/kABSocialProfileServiceYelp) The user’s Yelp profile identifier. [`kABSourceTypeSearchableMask`](/documentation/AddressBook/kABSourceTypeSearchableMask) Indicates that a source is searchable. [`kABSuffixMatch`](/documentation/AddressBook/kABSuffixMatch) Search for elements that end with the value. [`kABSuffixMatchCaseInsensitive`](/documentation/AddressBook/kABSuffixMatchCaseInsensitive) Search for elements that end with the value, ignoring case. [`kABUpdatedRecords`](/documentation/AddressBook/kABUpdatedRecords) Records that have been updated. [`kABWithinIntervalAroundToday`](/documentation/AddressBook/kABWithinIntervalAroundToday) Search for elements that are within a time interval (in seconds) forward or backward from today. [`kABWithinIntervalAroundTodayYearless`](/documentation/AddressBook/kABWithinIntervalAroundTodayYearless) Search for elements that are within a time interval (in seconds) forward or backward from this day in any year. [`kABWithinIntervalFromToday`](/documentation/AddressBook/kABWithinIntervalFromToday) Search for elements that are within a time interval (in seconds) forward from today. [`kABWithinIntervalFromTodayYearless`](/documentation/AddressBook/kABWithinIntervalFromTodayYearless) Search for elements that are within a time interval (in seconds) forward from this day in any year. ### Deprecated [`kABPersonAddressCityKey`](/documentation/AddressBook/kABPersonAddressCityKey) City. [`kABPersonAddressCountryCodeKey`](/documentation/AddressBook/kABPersonAddressCountryCodeKey) Country code. The value is an ISO country code. [`kABPersonAddressCountryKey`](/documentation/AddressBook/kABPersonAddressCountryKey) Country or region. [`kABPersonAddressProperty`](/documentation/AddressBook/kABPersonAddressProperty) Identifier for the address multivalue property. [`kABPersonAddressStateKey`](/documentation/AddressBook/kABPersonAddressStateKey) State. [`kABPersonAddressStreetKey`](/documentation/AddressBook/kABPersonAddressStreetKey) Street. [`kABPersonAddressZIPKey`](/documentation/AddressBook/kABPersonAddressZIPKey) Zip code. [`kABPersonAlternateBirthdayCalendarIdentifierKey`](/documentation/AddressBook/kABPersonAlternateBirthdayCalendarIdentifierKey) The associated value is a string representing the calendar identifier for a . [`kABPersonAlternateBirthdayDayKey`](/documentation/AddressBook/kABPersonAlternateBirthdayDayKey) The associated value is a of type whose value is the day for the birthday. [`kABPersonAlternateBirthdayEraKey`](/documentation/AddressBook/kABPersonAlternateBirthdayEraKey) The associated value is a of type whose value is the era for the birthday. [`kABPersonAlternateBirthdayIsLeapMonthKey`](/documentation/AddressBook/kABPersonAlternateBirthdayIsLeapMonthKey) The associated value is a of type . [`kABPersonAlternateBirthdayMonthKey`](/documentation/AddressBook/kABPersonAlternateBirthdayMonthKey) The associated value is a of type whose value is the month for the birthday. [`kABPersonAlternateBirthdayProperty`](/documentation/AddressBook/kABPersonAlternateBirthdayProperty) The associated value is a [`kABDictionaryPropertyType`](/documentation/AddressBook/kABDictionaryPropertyType) with keys specified by the other constants listed here. [`kABPersonAlternateBirthdayYearKey`](/documentation/AddressBook/kABPersonAlternateBirthdayYearKey) The associated value is a of type whose value is the year for the birthday. [`kABPersonAnniversaryLabel`](/documentation/AddressBook/kABPersonAnniversaryLabel) Birthdate. [`kABPersonAssistantLabel`](/documentation/AddressBook/kABPersonAssistantLabel) Assistant. [`kABPersonBirthdayProperty`](/documentation/AddressBook/kABPersonBirthdayProperty) Birthday. Type: [`kABDateTimePropertyType`](/documentation/AddressBook/kABDateTimePropertyType). [`kABPersonBrotherLabel`](/documentation/AddressBook/kABPersonBrotherLabel) Brother. [`kABPersonChildLabel`](/documentation/AddressBook/kABPersonChildLabel) Child. [`kABPersonCreationDateProperty`](/documentation/AddressBook/kABPersonCreationDateProperty) Creation date. Type: [`kABDateTimePropertyType`](/documentation/AddressBook/kABDateTimePropertyType). [`kABPersonDateProperty`](/documentation/AddressBook/kABPersonDateProperty) Identifier for the dates multivalue property. [`kABPersonDepartmentProperty`](/documentation/AddressBook/kABPersonDepartmentProperty) Department. Type: [`kABStringPropertyType`](/documentation/AddressBook/kABStringPropertyType). [`kABPersonEmailProperty`](/documentation/AddressBook/kABPersonEmailProperty) Email address. Type: [`kABMultiStringPropertyType`](/documentation/AddressBook/kABMultiStringPropertyType). [`kABPersonFatherLabel`](/documentation/AddressBook/kABPersonFatherLabel) Father. [`kABPersonFirstNamePhoneticProperty`](/documentation/AddressBook/kABPersonFirstNamePhoneticProperty) First name phonetic. Type: [`kABStringPropertyType`](/documentation/AddressBook/kABStringPropertyType). [`kABPersonFirstNameProperty`](/documentation/AddressBook/kABPersonFirstNameProperty) First name. Type: [`kABStringPropertyType`](/documentation/AddressBook/kABStringPropertyType). [`kABPersonFriendLabel`](/documentation/AddressBook/kABPersonFriendLabel) Friend. [`kABPersonHomePageLabel`](/documentation/AddressBook/kABPersonHomePageLabel) Home page. [`kABPersonImageFormatOriginalSize`](/documentation/AddressBook/kABPersonImageFormatOriginalSize) The image at its original size and shape. [`kABPersonImageFormatThumbnail`](/documentation/AddressBook/kABPersonImageFormatThumbnail) The small square thumbnail. [`kABPersonInstantMessageProperty`](/documentation/AddressBook/kABPersonInstantMessageProperty) Identifier for the instant message multivalue property. [`kABPersonInstantMessageServiceAIM`](/documentation/AddressBook/kABPersonInstantMessageServiceAIM) AIM instant message service. [`kABPersonInstantMessageServiceFacebook`](/documentation/AddressBook/kABPersonInstantMessageServiceFacebook) Facebook instant message service. [`kABPersonInstantMessageServiceGaduGadu`](/documentation/AddressBook/kABPersonInstantMessageServiceGaduGadu) Gadu-Gadu instant message service. [`kABPersonInstantMessageServiceGoogleTalk`](/documentation/AddressBook/kABPersonInstantMessageServiceGoogleTalk) Google Talk instant message service. [`kABPersonInstantMessageServiceICQ`](/documentation/AddressBook/kABPersonInstantMessageServiceICQ) ICQ instant message service. [`kABPersonInstantMessageServiceJabber`](/documentation/AddressBook/kABPersonInstantMessageServiceJabber) Jabber instant message service. [`kABPersonInstantMessageServiceKey`](/documentation/AddressBook/kABPersonInstantMessageServiceKey) Instant message service. [`kABPersonInstantMessageServiceMSN`](/documentation/AddressBook/kABPersonInstantMessageServiceMSN) MSN instant message service. [`kABPersonInstantMessageServiceQQ`](/documentation/AddressBook/kABPersonInstantMessageServiceQQ) QQ instant message service. [`kABPersonInstantMessageServiceSkype`](/documentation/AddressBook/kABPersonInstantMessageServiceSkype) Skype instant message service. [`kABPersonInstantMessageServiceYahoo`](/documentation/AddressBook/kABPersonInstantMessageServiceYahoo) Yahoo instant message service. [`kABPersonInstantMessageUsernameKey`](/documentation/AddressBook/kABPersonInstantMessageUsernameKey) Instant message service username. [`kABPersonJobTitleProperty`](/documentation/AddressBook/kABPersonJobTitleProperty) Job title. Type: [`kABStringPropertyType`](/documentation/AddressBook/kABStringPropertyType). [`kABPersonKindOrganization`](/documentation/AddressBook/kABPersonKindOrganization) Identifies an organization. [`kABPersonKindPerson`](/documentation/AddressBook/kABPersonKindPerson) Identifies a person. [`kABPersonKindProperty`](/documentation/AddressBook/kABPersonKindProperty) Identifier for the type property. [`kABPersonLastNamePhoneticProperty`](/documentation/AddressBook/kABPersonLastNamePhoneticProperty) Last name phonetic. Type: [`kABStringPropertyType`](/documentation/AddressBook/kABStringPropertyType). [`kABPersonLastNameProperty`](/documentation/AddressBook/kABPersonLastNameProperty) Last name. Type: [`kABStringPropertyType`](/documentation/AddressBook/kABStringPropertyType). [`kABPersonManagerLabel`](/documentation/AddressBook/kABPersonManagerLabel) Manager. [`kABPersonMiddleNamePhoneticProperty`](/documentation/AddressBook/kABPersonMiddleNamePhoneticProperty) Middle name phonetic. Type: [`kABStringPropertyType`](/documentation/AddressBook/kABStringPropertyType). [`kABPersonMiddleNameProperty`](/documentation/AddressBook/kABPersonMiddleNameProperty) Middle name. Type: [`kABStringPropertyType`](/documentation/AddressBook/kABStringPropertyType). [`kABPersonModificationDateProperty`](/documentation/AddressBook/kABPersonModificationDateProperty) Modification date. Type: [`kABDateTimePropertyType`](/documentation/AddressBook/kABDateTimePropertyType). [`kABPersonMotherLabel`](/documentation/AddressBook/kABPersonMotherLabel) Mother. [`kABPersonNicknameProperty`](/documentation/AddressBook/kABPersonNicknameProperty) Nickname. Type: [`kABStringPropertyType`](/documentation/AddressBook/kABStringPropertyType). [`kABPersonNoteProperty`](/documentation/AddressBook/kABPersonNoteProperty) Note. Type: [`kABStringPropertyType`](/documentation/AddressBook/kABStringPropertyType). [`kABPersonOrganizationProperty`](/documentation/AddressBook/kABPersonOrganizationProperty) Organization name. Type: [`kABStringPropertyType`](/documentation/AddressBook/kABStringPropertyType). [`kABPersonParentLabel`](/documentation/AddressBook/kABPersonParentLabel) Parent. [`kABPersonPartnerLabel`](/documentation/AddressBook/kABPersonPartnerLabel) Partner. [`kABPersonPhoneHomeFAXLabel`](/documentation/AddressBook/kABPersonPhoneHomeFAXLabel) Home fax number. [`kABPersonPhoneIPhoneLabel`](/documentation/AddressBook/kABPersonPhoneIPhoneLabel) iPhone number. [`kABPersonPhoneMainLabel`](/documentation/AddressBook/kABPersonPhoneMainLabel) Main phone number. [`kABPersonPhoneMobileLabel`](/documentation/AddressBook/kABPersonPhoneMobileLabel) Mobile phone number. [`kABPersonPhoneOtherFAXLabel`](/documentation/AddressBook/kABPersonPhoneOtherFAXLabel) Other fax number. [`kABPersonPhonePagerLabel`](/documentation/AddressBook/kABPersonPhonePagerLabel) Pager phone number. [`kABPersonPhoneProperty`](/documentation/AddressBook/kABPersonPhoneProperty) Identifier for the phone number multivalue property. [`kABPersonPhoneWorkFAXLabel`](/documentation/AddressBook/kABPersonPhoneWorkFAXLabel) Work fax number. [`kABPersonPrefixProperty`](/documentation/AddressBook/kABPersonPrefixProperty) Prefix (“Sir,” “Duke,” “General”). Type: [`kABStringPropertyType`](/documentation/AddressBook/kABStringPropertyType). [`kABPersonRelatedNamesProperty`](/documentation/AddressBook/kABPersonRelatedNamesProperty) Identifier for the related name multivalue property. [`kABPersonSisterLabel`](/documentation/AddressBook/kABPersonSisterLabel) Sister. [`kABPersonSocialProfileProperty`](/documentation/AddressBook/kABPersonSocialProfileProperty) Identifier for the social profile property. [`kABPersonSocialProfileServiceFacebook`](/documentation/AddressBook/kABPersonSocialProfileServiceFacebook) Facebook social profile service. [`kABPersonSocialProfileServiceFlickr`](/documentation/AddressBook/kABPersonSocialProfileServiceFlickr) Flickr social profile service. [`kABPersonSocialProfileServiceGameCenter`](/documentation/AddressBook/kABPersonSocialProfileServiceGameCenter) Game Center social profile service. [`kABPersonSocialProfileServiceKey`](/documentation/AddressBook/kABPersonSocialProfileServiceKey) Social profile service. [`kABPersonSocialProfileServiceLinkedIn`](/documentation/AddressBook/kABPersonSocialProfileServiceLinkedIn) LinkedIn social profile service. [`kABPersonSocialProfileServiceMyspace`](/documentation/AddressBook/kABPersonSocialProfileServiceMyspace) Myspace social profile service. [`kABPersonSocialProfileServiceSinaWeibo`](/documentation/AddressBook/kABPersonSocialProfileServiceSinaWeibo) Sina Weibo social profile service. [`kABPersonSocialProfileServiceTwitter`](/documentation/AddressBook/kABPersonSocialProfileServiceTwitter) Twitter social profile service. [`kABPersonSocialProfileURLKey`](/documentation/AddressBook/kABPersonSocialProfileURLKey) Social profile URL. [`kABPersonSocialProfileUserIdentifierKey`](/documentation/AddressBook/kABPersonSocialProfileUserIdentifierKey) Social profile user identifier. [`kABPersonSocialProfileUsernameKey`](/documentation/AddressBook/kABPersonSocialProfileUsernameKey) Social profile username. [`kABPersonSpouseLabel`](/documentation/AddressBook/kABPersonSpouseLabel) Spouse. [`kABPersonSuffixProperty`](/documentation/AddressBook/kABPersonSuffixProperty) Suffix (“Jr.,” “Sr.,” “III”). Type: [`kABStringPropertyType`](/documentation/AddressBook/kABStringPropertyType). [`kABPersonURLProperty`](/documentation/AddressBook/kABPersonURLProperty) Identifier for the URL multivalue property. [`kABSourceNameProperty`](/documentation/AddressBook/kABSourceNameProperty) The name of the source. Type: kABStringPropertyType. [`kABSourceTypeProperty`](/documentation/AddressBook/kABSourceTypeProperty) The type of the source. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)