| 1 | IsUnknownProvider | IsUnknownProvider indicates provider information was unavailable for the provided phone number. |
| 2 | IsInvalidNumber | IsInvalidNumber indicates that the provided number is invalid. |
| 3 | IsPorted | IsPorted 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). |
| 4 | IsLandline | IsLandline indicates the provided phone number is registered as a Landline. |
| 5 | IsWireless | IsWireless indicates the phone number is assigned to a wireless device. |
| 6 | IsVOIP | IsVOIP indicates the phone number is assigned to a VOIP provider. |
| 7 | IsUnknownLineType | IsUnknownLineType indicates the line type could not be determined from the carrier. |
| 8 | IsTollFreeNumber | IsTollFreeNumber indicates the provided number is a Toll Free Access number. |
| 9 | IsGoogleVoiceNumber | IsGoogleVoiceNumber indicates the provided number is a registered Google Voice number. There is increased risk for fraud with Google Voice numbers from operators overseas. |
| 10 | IsSkypeNumber | IsSkypeNumber indicates the provided number is a registered Skype number. There is increased risk for fraud with Skype numbers from operators overseas. |
| 11 | IsPortableVOIP | IsPortableVOIP 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. |
| 12 | IsPossiblePortableVOIP | IsPossiblePortableVOIP 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. |
| 13 | IsPrepayPhone | IsPrepayPhone 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. |
| 14 | IsIncompleteNumber | IsIncompleteNumber 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. |
| 15 | IsGarbage | IsGarbage indicates that there is a pattern in the phone number that we have determined to classify the phone number as garbage. |
| 16 | IsPossibleGarbage | IsPossibleGarbage indicates that there is a pattern in the phone number that we have determined to classify the phone number as possible garbage. |
| 900 | INA | For internal use by Service Objects. |
| 901 | INB | For internal use by Service Objects. |
| 902 | INC | For internal use by Service Objects. |