Cordless phone system · AT&T · price guide
AT&T BL102-4 value
An AT&T BL102-4 cordless phone system sells for about $53.49 on eBay, from 30 sales between Jul 22, 2026 and Oct 13, 2026. Most sell for $40.92 to $66.07. Used ones bring $49.99, new ones $75. At local online auctions it has gone for $9.
See the numbers
| Month | Sales | Middle price |
|---|---|---|
| Jul 2026 | 3 | $52.98 |
| Aug 2026 | 10 | $55.97 |
| Sep 2026 | 12 | $47.48 |
| Oct 2026 | 5 | $54.99 |
The flip math
What one AT&T BL102-4 is worth to a reseller, line by line.
To keep at least 2 times what you pay, bid no more than $9.53. Above $20.62 you lose money after every fee. Run your own numbers.
Local auction prices
1 single AT&T BL102-4 lot closed at Kansas and Missouri online auctions we track, at a middle winning bid of $9.
| Closed | Winning bid |
|---|---|
| Oct 18, 2026 | $9 |
Selling notes
- 30% of sales shipped free; the rest charged a middle $9.95 for shipping.
- 27% sold through Best Offer, where the real price can be lower than shown.
- The last 60 days are down 7% against the 4 months before.
- 3 sold in the last 30 days, 26 in the last 90.
Questions
How much is a used AT&T BL102-4 cordless phone system worth?
About $49.99 on eBay, the middle of 25 used sales between Jul 22, 2026 and Oct 13, 2026. Most used ones sell for $40.92 to $66.07 once new ones are counted too.
What does a new AT&T BL102-4 cordless phone system sell for?
New ones sold for a middle price of $75 across 5 eBay sales.
How fast does an AT&T BL102-4 sell?
3 sold on eBay in the last 30 days and 26 in the last 90. Prices are down 7% against the months before. 30% of sales came with free shipping.
What does an AT&T BL102-4 go for at auction?
At the Kansas and Missouri online auctions we track, 1 single AT&T BL102-4 lot closed at a middle winning bid of $9, against $53.49 on eBay.
Is an AT&T BL102-4 worth flipping?
Sold at $40.92 on eBay you keep about $28.52 after fees, shipping and a returns buffer. To double your money, pay no more than $9.53 as a winning bid with an 18% premium and 9% tax.
Have one? Look it up
Snap a photo or scan the barcode and see what yours sells for, new and used, with every fee counted.
Look up yoursHow we got these numbers
- 30 eBay sales of the AT&T BL102-4 from Jul 22, 2026 to Oct 13, 2026, each one checked to be this model (at least half name it in the listing; the rest match it closely).
- eBay prices are completed sales (what buyers paid), not asking prices, from our sold-data provider. We keep only sales of the same product: parts, accessories, bundles and look-alikes are dropped before anything is counted.
- Local auction prices are winning bids on single-item lots at the Kansas and Missouri online auctions we track (HiBid and Equip-Bid sellers), read by our own lot reader. Lots of several units are left out.
- The money math uses our standard costs: 18% buyer's premium, 9% sales tax, a $2.00 lot fee, eBay's 13.6% + $0.40 fee, shipping at cost (never counted as profit) and a 15% buffer for returns and duds. Members set their own.