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Mountain Wireless SID List
System Identification Numbers, or SIDs, are
15-bit numeric identifiers used by cellular
systems to identify the home system of a
cellular telephone and by the cellular telephone
to determine its roaming status. In the US,
cellular SIDs had originally been assigned
and recorded by the FCC. In 2003 the FCC
decided to privatize the function of assigning
and recording cellular SIDs. Each list here
is updated as changes are discovered. Note: The newer "Current" files are
much smaller than the older files, but are
still large.
The administration of Cellular SIDs was transferred
to the private sector on October 1, 2003.
(See PN DA 03-3017). With the transfer of
this responsibility, the SID was removed
from the cellular license. Cellular licensees
seeking a new SID assignment, an additional
SID assignment, or licensees that have ceased
using an assigned SID, will be required to
make their request / notification through
one of the recognized SID Administrators.
WTB has recognized six organizations to perform Cellular SID administration.
Each organization will operate under the
general guidelines (pdf) developed by the
FCC and the cellular industry. In addition,
each organization has signed a Memorandum
of Understanding with the FCC.
Background
The year 2000 biennial review of the Cellular
Radiotelephone Service resulted in the Commission
eliminating 47 C.F.R. §22.941, System identification
numbers, from its rules.
This impacted cellular carriers in two ways:
Cellular SID Administration would be transferred
from the FCC to the private sector.
Once transferred, the SID would no longer
be a term of a cellular license.
In transitioning the SID administration function
from the FCC to the private sector, the Bureau:
kept the industry informed through Public
Notices and its website, drafted SID Administrator
Guidelines outlining the responsibilities
of each administrator and requested public
comment, and signed a Memorandum of Understanding
with each recognized administrator.
Note: SID assignments prior to October 1,
2003 are available in the archive license
database in the FCC Universal Licensing System (ULS).
Find a cellular store near you:
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