| Allocation Types: | 
| Customer netblock (default) | A direct allocation /30 or larger to a customer. | 
| Customer static IP - Cable | A single IP address from a designated pool
on the cable network. | 
| Customer static IP - DSL | A single IP address from a designated pool
on the DSL network.  Note that these are nominally in Sudbury, even if the customer
isn't. | 
| IP from server pool | A single IP from a pool designated for servers | 
| Pool - Cable | A pool of IP addresses available for one-by-one assignment to
customers on cable. | 
| Pool - DSL | A pool of IP addresses available for one-by-one assignment to
customers on DSL.  Note that the itself will be "assigned" to the customer's city, but
the pool it's a part of will be "assigned" to Sudbury. | 
| Pool - Servers | A pool of IP addresses available for one-by-one assignment to 
servers in Sudbury. | 
| End-use netblock | A /30 or larger allocation for arbitrary services (LAN
management, servers we want fully subnet-isolated, etc) | 
| Dialup netblock | Netblock assigned to one or more TCS units in a POP | 
| Dynamic DSL block | Netblock for (mostly residential) PPPoE DSL.  Nominally
"assigned" to Sudbury | 
| Dynamic cable block | Netblock for (mostly residential) DHCP cable. | 
| Routing | Blocks not actually assigned to a service on their own, but which
have been routed to individual POPs- typically /24, /23, /22 | 
| Master block | Our allocations from ARIN |