A2A Transfer Methods
This is a directory of sites and services where account-to-account (A2A) transfers are possible.
Bitcoin Accounts
The following are sites and services where bitcoins may be transferred from one user account to another, internally, without there being an external transaction (e.g., blockchain, bank network, etc.). Redeemable codes are bearer codes which can be passed (securely) from one account holder to another.
| Service | Website | Method | Exchanges | Notes / Alternate |
| Bitcoin-Central | Bitcoin-Central.net | Transfer (Withdraw) | n/a | Transfer BTC or Liberty Reserve (LRUSD and LREUR) |
| Bitstamp | Bitstamp.net | Redeemable code | BitInstant | Denominated in BTC, USD, or a combination of BTCs and USDs. |
| BTC-E | BTC-e | Redeemable code | BitInstant (destination) | Denominated in USD only. |
| Camp BX | CampBX.com | Transfer | n/a | BTC transfers only. Transfer to recipient's CBX Instant Transfer Code (shown in User Profile). |
| Coinapult | Coinapult.com | Send | n/a | BTC transfers only. Send to an e-mail address or mobile number. |
| Coinbase | Coinbase.com | Send Money | n/a | BTC transfers only. Send to an e-mail address. |
| CryptoXChange | CryptoXChange.com | Coupon/Redeemable code | BitInstant | Denominated in BTC, NMC, USD, and AUD. |
| Mt. Gox | MtGox.com | Redeemable code | BitInstant AurumXChange |
Denominated in BTC, USD, EUR, GBP, CAD, AUD, and all other wallet currencies supported by Mt. Gox |
Other
Financial services which allow transfer of funds from one account to another.
| Service | Website | Method | Exchanges | Notes / Alternate |
| Dwolla | Dwolla.com | Send | Mt. Gox Camp BX Intersango BitInstant |
Send to an e-mail address, mobile number or Dwolla account number. USD denomination. |
| Intrade | Intrade.com | Transfer | Bitcoin TX | Customer-to-customer transfer, requested made by phone or via e-mail. |
| Liberty Reserve | LibertyReserve.com | Transfer | BitInstant AurumXChange BTC-E BTC China and more |
Send money to another Liberty Reserve account number. Denominations LR USD, LR EUR, LR Gold Grams. |
| OKPay | OKPay.com | Send Money | n/a | Send money to any e-mail address or OKPay Wallet ID. USD denominations. |
| PayPal | PayPal.com | Send Money | n/a | Send money to any e-mail address or mobile number. Denominations selected automatically. |
| VirWoX | VirWoX.com | Send | n/a | Transfers of SLL (Second Life Lindens) only. Send to another VirWoX account id. |