Wikipedia:WikiProject U.S. Roads/North Carolina/Renumberings

Mid-1930s
1937:
 * NC 9: renamed US 70A, and reassigned as a renumbering of NC 119 and NC 192 to match SC 9
 * NC 38: renumbered from NC 771 to match SC 38
 * NC 85: renumbered from NC 802 to match SC 85 (but see below)
 * NC 86: renumbered from NC 38
 * NC 161: renumbered from NC 215 to match SC 161
 * NC 162: renumbered from NC 161
 * NC 904: renumbered from NC 761 to match SC 904

1940:
 * NC 8: extended north over part of NC 109 to match VA 8
 * NC 14: renumbered from part of NC 65
 * NC 16: rerouted north over NC 681 to match VA 16 (which had been renumbered from VA 92 and other roads)
 * NC 32: extended north over part of NC 172 to match VA 32 (which had been renumbered from a portion of VA 10)
 * NC 35: renumbered from NC 45 to match VA 35
 * NC 37: extended south over part of NC 172 to match VA 37 (which had been renumbered from VA 53)
 * NC 45: renumbered from NC 35
 * NC 49: extended north over part of NC 62 and part of NC 144 to match VA 49 (which was rerouted on a new route)
 * NC 62: rerouted south over part of NC 61 and part of NC 144
 * NC 65: swapped with US 158 and truncated
 * NC 78: renumbered from NC 93
 * NC 80: renumbered from NC 104
 * NC 86: renumbered from NC 14 to match VA 86
 * NC 88: extended north over part of NC 16
 * NC 93: renumbered from NC 260 to match VA 93
 * NC 96: renumbered from NC 562 to match VA 96 (which had been renumbered from a portion of VA 49 which was rerouted to match NC 49)
 * NC 103: renumbered from NC 80 to match VA 103
 * NC 104: renumbered from NC 800 to match VA 104
 * NC 119: renumbered from NC 103 (extended to Virginia in 1954; the connecting road was designated as VA 419 while a numbering swap of VA 119 and then-new VA 419 was being discussed; it was approved, making the connecting road VA 119
 * NC 127: renumbered from NC 96
 * NC 150: extended southwest replacing NC 184 to match South Carolina
 * NC 172: renumbered from NC 86

In 1952 US 13 was extended replacing NC 97, and NC 13 was decommissioned entirely.

1961:
 * NC 26: Renumbered NC 226
 * NC 40: Renumbered NC 133
 * NC 77: Renumbered NC 177
 * NC 85: Renumbered NC 145
 * NC 95: Renumbered NC 97
 * NC 277: Renumbered NC 279