Boost Mobile is running a new in-store promotion that gives customers who port their number to Boost up to $100 off the price of a new phone.

From 10/4/13 through 11/3/13, customers on any non-Sprint carrier (carriers that are Sprint MVNO's are not eligible) can get up to $100 off any new phone when they port their existing phone number to Boost Mobile (in selected markets only).

Here's the fine print:

• Promotion runs from 10/4/13 through 11/3/13 
• The offer only good at participating independent Boost Mobile stores (store locator), not online or at national chain stores like Target or Radio Shack. 
• It's only available in the following markets: Atlanta/Athens, Los Angeles Metro, North Los Angeles, New Jersey, Chicago, Houston, Miami/West Palm, New York City, Long Island, NY; Orlando, South Texas, San Diego, Lower Central Valley, Riverside/San Bernardino, Orange County, CA, Dallas-Fort Worth, San Antonio, Austin, Washington DC, Philadelphia, Baltimore, New Orleans, and East Michigan. 
• The Eligible New Subscriber Activation must be on one of the following monthly plans: $50 Monthly Unlimited Plan, $55 Android Monthly Unlimited Plan, $45 BlackBerry Messenger Plan or $60 BlackBerry Monthly Unlimited Plan. 
• The Eligible New Subscriber Activation account must have at least $45 of replenishment added within the same calendar month period as the date of activation. 

More expensive phones are $100 off suggested retail price. The eligible models are:

• ZTE Warp Android phone $29.99 (reg $129.99)
• Kyocera Hydro Edge waterproof Android phone $49.99 (reg $149.99)
• ZTE Warp Sequent $49.99 Android phone (reg $149.99)
• LG Mach LTE Android QWERTY slider $79.99 reg ($179.99)
• Samsung Galaxy Prevail 2 Android phone $79.99 reg ($179.99)
• LG Venice Android phone $79.99 reg ($179.99)
• ZTE Force LTE Android phone $79.99 (reg $179.99)
• ZTE Warp 4G LTE Android phone $99.99 (reg $199.99)
• HTC EVO Design 4G Android phone $149.99 (reg $249.99)
• Samsung Galaxy S II Android phone $149.99 (reg $249.99)
• HTC One SV LTE Android phone $179.99 (reg $279.99)
• LG Optimus F7 LTE Android phone $199.99 (reg $299.99)
• Samsung Galaxy S III LTE Android phone $299.99 (reg $399.99)