Spot Mobile APN settings for Android:

Go to Menu -> Settings -> Wireless & networks-> Mobile networks -> Access Point Names -> New APN and type the following

Name : Spot Mobile
APN : wholesale
Proxy : Not Set
Port : Not Set
Username : Not Set
Password : Not Set
Server : Not Set
MMSC :  http://wholesale.mmsmvno.com/mms/wapenc
MMS Proxy : 216.155.165.50
MMS Port : 8080
MCC : 310
MNC : 150
Authentication Type : Not Set
APN type : default,supl,mms
APN protocol: IPv4
APN roaming protocol: IPv4
Bearer : unspecified
MVNO type: None

Spot Mobile APN Settings for iPhone

Go to Settings-> General Settings-> Network->Turn ON Cellular Data-> Cellular Network -> APN and enter the following Details

CELLULAR DATA:
APN: wholesale
Username: Blank
Password: Blank
MMS:
APN: wholesale
Username: blank
Password: blank
MMSC: http://wholesale.mmsmvno.com/mms/wapenc
MMS Proxy: 216.155.165.50:8080
MMS Message Size: 1048576
MMS UA Prof URL:Leave blank

Spot Mobile Blackberry APN Settings:

Internet APN
Go to Settings -> Network Connections -> Mobile Network ->APN
Access Point Name (APN) :   wholesale
Username : Blank
Password : Blank

MMS APN:
Tap Text Messages ->…> Settings ->Text Messages ->MMS ->Advanced and enter the following details
Access Point Name (APN) : wholesale
Username : Blank
Password : Blank
MMSC Settings
MMSC URL : http://wholesale.mmsmvno.com/mms/wapenc
Proxy URL: 216.155.165.50:8080
Proxy Username: Blank
Proxy Password: Blank

Windows Phone APN Spot Mobile

Windows Phone  Tap Settings -> Network & Wireless -> Cellular & SIM Settings -> Add Internet APN
INTERNET APN:
Profile Name: Internet
APN:   wholesale
User name: Blank
Password: Blank
Type of Sing-in-info : None
IP Type :Ipv4
Proxy server (URL): Blank
Proxy Port : Blank
MMS APN:
Profile Name: MMS
APN:  wholesale
User name: Blank
Password: Blank
Type of Sing-in-info : None
IP Type :Ipv4
Proxy Server : 216.155.165.50
Proxy Port : 8080
MMSC (URL): http://wholesale.mmsmvno.com/mms/wapenc
MMSC Port: Blank
Maximum MMS Size (KB): 1024