EoC - Ethernet over Copper - will go to 100 MB at roughly 5.7 MB per pair (with distance limitations).
Some interesting facts about EoC and carriers:
"ATT: Inherited EoC from its acquisition of BellSouth, and barely markets it. Instead, AT&T uses it as a quiet solution for challenging customers who cannot affordably be reached by fiber." That's why they call it Mid-Band Ethernet. They use Hatteras gear in the CO.
"CenturyLink: No phone company is as aggressive about EoC as CenturyLink."
All of these ILEC's offer EoC in at least some areas: VZ, WIND, Fairpoint, Frontier, Surewest, Hawaii Telecom.
PAETEC launched 100 MB EoC using Overture Networks in 2011. There was even a press release about 200 MB, which was kind of BS. Much like Overture saying: "With Overture Ethernet over bonded copper solutions, service providers and network operators can bond up to 32 pairs and, depending on the distance, can get 15M on each pair. Theoretically, you can achieve nearly 500 Mbps on copper with this solution. In practice, our customers typically deploy services and transport from 10Mbps - 100 Mbps using these solutions." Most buildings don't have that much free, usable copper.
The MEF says that you should get "Running over existing Category 3 wire, EFM has set goals for a short reach option of at least 10 Mbps up to at least 750 meters, and a long reach option of at least 2 Mbps up to at least 2700 meters."
XO has a simple chart.
CLEC's are rolling EoC out because it is fast, symmetric speeds to the business customer without the time delay of a fiber build. It is also inexpensive to deploy - copper pairs, CO gear, and CPE. ADTRAN is a big supplier. Customers may include MegaPath, Telepacific, EarthWave, Integra, Spirit, Alpheus and XO.
COMPTEL has begged the FCC for some copper plant rules.