Developer Guide - Notes, Codes and Corrections for Phone Exchange


Note Codes


The NoteCode table contains a list of current and upcoming note flags that the service can report on when processing a request.


Notice: New NoteCodes and NoteDescription values may be added to the service at any time. 

NoteCodeNoteDescriptionSummary
1IsUnknownProviderIsUnknownProvider indicates provider information was unavailable for the provided phone number.
2IsInvalidNumberIsInvalidNumber indicates that the provided number is invalid.
3IsPortedIsPorted indicates the provided phone number has been ported to a new or existing carrier. This is common among wireless subscribers, and users who wish to retain their phone number when switching phone device (e.g. Landline to Wireless).
4IsLandlineIsLandline indicates the provided phone number is registered as a Landline.
5IsWirelessIsWireless indicates the phone number is assigned to a wireless device.
6IsVOIPIsVOIP indicates the phone number is assigned to a VOIP provider.
7IsUnknownLineTypeIsUnknownLineType indicates the line type could not be determined from the carrier.
8IsTollFreeNumberIsTollFreeNumber indicates the provided number is a Toll Free Access number.
9IsGoogleVoiceNumberIsGoogleVoiceNumber indicates the provided number is a registered Google Voice number. There is increased risk for fraud with Google Voice numbers from operators overseas.
10IsSkypeNumberIsSkypeNumber indicates the provided number is a registered Skype number. There is increased risk for fraud with Skype numbers from operators overseas.
11IsPortableVOIPIsPortableVOIP indicates the registered phone carrier provides local phone number registration without physical address. There is increased risk of fraud with portable voip numbers from operators overseas.
12IsPossiblePortableVOIPIsPossiblePortableVOIP indicates the registered phone number is likely assigned to a carrier which provides local phone number registration without physical address. There is increased risk of fraud with portable voip numbers from operators overseas.
13IsPrepayPhoneIsPrepayPhone indicates the phone number is assigned to a phone carrier offering prepay services. There is increased risk of fraud with phone numbers identified as prepay.
14IsIncompleteNumberIsIncompleteNumber indicates that even though a phone provider match was found for the first 6 digits, the number is incomplete and ultimately an invalid phone number.
15IsGarbageIsGarbage indicates that there is a pattern in the phone number that we have determined to classify the phone number as garbage.
16IsPossibleGarbageIsPossibleGarbage indicates that there is a pattern in the phone number that we have determined to classify the phone number as possible garbage.
900INAFor internal use by Service Objects.
901INBFor internal use by Service Objects.
902INCFor internal use by Service Objects.