ANSI point codes are made up of three groups of digits called the network indicator (ni), network cluster (nc), and network cluster member (ncm). The values for ANSI point codes depend on the value of the pctype parameter of the chg-sid command, either ansi or other.

If the pctype=ansi command is entered, the range of values for an ANSI point code is as follows:

• ni-001-255
• nc-001-255 (if ni = 001-005)
• -000-255, * (if ni = 006-255)
• ncm-000-255

The following rules apply to provisioning ANSI point codes if the pctype=ansi parameter is specified:

• An ni value of 0 is not allowed (e.g., dpc=0-1-1 and dpc=0-0-0 are not valid point codes).
• If the ni value is 1, 2, 3, 4, or 5, then the nc value cannot be 0 (e.g., dpc=5-0-1 is rejected).
• If the ni value is 1, 2, 3, 4, or 5, then network routing point codes are not allowed (e.g., dpc=4-*-* is rejected).

If the pctype=other parameter is specified, the ANSI point codes do not meet ANSI standards. The range of values for these ANSI point codes is as follows:

• ni-000-255
• nc-000-255, *
• ncm -000-255, *

The following rules apply to provisioning ANSI point code if the pctype=other parameter is specified:

• An ni value of 0 is allowed, however dpc=0-0-0 is rejected (e.g., dpc=0-1-1 is accepted).
• The nc value can be 0 for all values of ni (e.g., dpc=5-0-1 is accepted).
• Network routing point codes are allowed for all values of ni (e.g., dpc=4-*-* is accepted).

An ANSI point code containing all zeros (0-0-0) is not a valid point code and cannot be entered into the database.

ANSI point codes support the Private (Internal) Point Code subtype prefix (p-). The prefix can be specified before the point code subfield values to indicate a Private Point Code (i.e p-5-0-1). See Spare and Private Point Code Subtype Prefixes.

A range of values for a subfield is specified by separating the values that define the range by two ampersands (&&); for example, ni=025&&100 specifies all network indicators for ANSI point codes from 25 - 100.

The asterisk (*) point code value indicates a single cluster address for a cluster point code (e.g., 20-2-*) or a network routing destination (20-*-*). If * is used for the nc subfield, then * must be also be used for the ncm subfield.

A double asterisk (**) and a triple asterisk (***) can also be used for the nc and ncm subfields of the ANSI point code, but only for the rtrv-dstn, rept-stat-dstn, rtrv-rte, and rept-stat-rte commands. If *, **, or *** is used for the nc subfield, then *, **, or *** must be used for the ncm field

For examples of all of these point code values, see the rtrv-dstn command output.