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Carrier group · Administrative / Reserved

Office of The Manager National Communications Sys

Total blocks
798
Recent (18 mo)
0
Medium
0
Old
0
Member OCNs
1
States
1
Area codes
1
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Block portfolio at a glance

By age

Undated: 798798blocks
  • Recent (0) — last 18 mo
  • Medium (0)
  • Old (0)
  • Undated (798)

Footprint by state

Stronger blue = more blocks issued in that state. ● marks states with activity in the last 18 months.

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  • XX XX · 798

Top area codes

Bars show total blocks; red overlay is recent.

710798

Member OCNs

1 OCN roll up under Office of The Manager National Communications Sys.

OCNCompany name on fileHQTypeTotalRecent
4758 Cybersecurity and Infrastructure Security Agency Arlington, VA Administrative / Reserved 798 —