List of former New Brunswick provincial highways

Until 1965, New Brunswick highways were numbered consecutively from 1 to 42. A massive renumbering led to the current three-tier system. Some changes have taken place to highway numbering since then, and the following numbers are no longer used:


 * Route 2A—2 sections:
 * Fredericton-Saint John area—Fredericton to Saint John via Broad Road; Designated as Route 7.
 * Moncton area—Salisbury to Sackville, via Downtown Moncton, after Moncton Bypass was built in the early 1960s; Designated as Route 6 in 1965 (see below), then Route 106 in 1984.
 * Route 2B
 * Route 5 (1927-1981)—Original route now designated as Route 555; Route 5 realigned and renumbered as Route 95.
 * Route 6 (1927-1965)—Renumbered Route 555; now Route 110
 * Route 6 (1965-1984)—Designated as Route 106 in 1984.
 * Route 7 (1927-1965)—renumbered Route 19, now Route 190
 * Route 9 (1927-196?)—Fredericton to Sussex, later part of Route 2; now part of Route 105 and Route 10.
 * Route 9 (196?-?)—Route 1 to Quispamsis; now part of Route 100.
 * Route 9A
 * Route 12 (1927-1965)—Newcastle to Chatham (Miramichi region); this section was absorbed as part of route 126 in 1965.
 * Route 12 (1965-1976)—Fredericton - Oromocto (Vanier Highway); now designated as part of route 7.
 * Route 13 (1927-1965) —Pokemouche to Miscou Island; Now designated as Route 113.
 * Route 14 (1927-1965)—Now designated as Route 114
 * Route 14 (1965-1984)—St-Jacques to St-Basile via Edmundston downtown; now designated as part of route 144.
 * Route 18—Grand Falls to US Border near Hamlin, ME; now designated as route 218.
 * Route 19 (1927-1965)—Limestone to US Border; now designated as route 375.
 * Route 19—Perth-Andover to US Border; now designated as route 190.
 * Route 20—Edmundston to Quebec border, by Lac Baker; now designated as route 120.
 * Route 20A—Caron Brook to Connors via Clair; now designated as route 161 and route 205.
 * Route 21—Fredericton to Grand Falls; now designated as route 105.
 * Route 22—Grand Falls to north of Perth; now designated as route 108.
 * Route 23—Three Brooks to Nictau; now designated as route 108.
 * Route 24—Hartland to Mouth of Keswick; now designated as route 104.
 * Route 25—Fredericton to Boiestown; now designated as routes 620 and 625.
 * Route 25A—Stanley to Nashwaak Bridge; now designated as part of route 107.
 * Route 26—Maine (Forest City) to Meductic; now designated as part of route 122.
 * Route 27—Andersonville to St. Croix; now designated as route 630.
 * Route 28—Welsford to Fredericton; now designated as route 101.
 * Route 29—Saint John to Sussex; now designated as route 111.
 * Route 30—Coles Island to Salisbury; now designated as route 112.
 * Route 31—Moncton to Cocagne via St-Antoine; now designated as route 115.
 * Route 32—Parts of it now designated as route 132.
 * Route 33—Moncton to Miramichi; now designated as route 126.
 * Route 34—Chipman to Rexton; now designated as route 116.
 * Route 35—Now designated as route 135.
 * Route 36
 * Route 37—Now designated as route 440.
 * Route 38—Dalhousie to Campbellton, via Eel River Crossing, Balmoral and Val D'Amours; now designated as Route 275, but extended through St-Arthur via former Route 270.
 * Route 39
 * Route 40—Now designated as route 124.
 * Route 41—Now designated as route 127.
 * Route 42—Now designated as route 560.
 * Route 96 (unsigned) -- Royree Road (2 km west of New Brunswick Route 720) - Route 3 in St. Stephen, New Brunswick (via St. Stephen Drive; now entirely absorbed by Route 1)
 * Route 106 (1965-1968)— Hartland - Perth-Andover (Now part of Routes 103 and 130)
 * Route 106 (1976-1984)— Oromocto - Route 7 at Geary (Became part of Route 660; now unnumbered)
 * Route 110 (1965)
 * Route 125—Perth-Andover - Grand Falls (Now part of Route 105)
 * Route 142—Saint John - Grand Bay (via Westfield Road)
 * Route 191—Bathurst - Janeville (via Bridge Street/Cape Road)
 * Route 192
 * Route 270—Campbellton - Val d'Amour - Route 275 (via Val d'Amour Road)
 * Route 393—Plaster Rock - Hazeldean (Now part of Route 108)
 * Route 520
 * Route 545
 * Route 555 (1965-1976)—Florenceville-Bristol - Maine (Now Route 110)
 * Route 650
 * Route 660—Oromocto - Geary - Blissville (via Broad Road/Branch Road)
 * Route 685
 * Route 720—Route 725 to Route 170 in Saint Stephen via Church Street (Now part of Route 725)
 * Route 765—Lawrence Station - Waweig (Now part of Route 127)
 * Route 810
 * Route 930—Upper Sackville - Haute Aboujagane (via Upper Aboujagane Road)