following my own post,
switch and nordunet bgp looking glass return "network not in table", RIPE looking glass return a default route, but is reachable via traceroute:
Traceroute from RRC00 to 216.21.226.75.
traceroute to 216.21.226.75 (216.21.226.75), 30 hops max, 38 byte packets 1 gw.dev.nsrp.ripe.net (193.0.0.14) 0.428 ms 0.390 ms 0.381 ms 2 GigabitEthernet3-2.core2.ams1.level3.net (195.69.144.110) 2.508 ms 202.686 ms 1.990 ms 3 ge-7-0-0.mp2.Amsterdam1.Level3.net (4.68.125.205) 1.095 ms ge-0-0-0.mp2.Amsterdam1.Level3.net (4.68.96.197) 74.588 ms ge-7-0-0.mp2.Amsterdam1.Level3.net (4.68.125.205) 1.085 ms 4 ae-0-0.bbr2.NewYork1.Level3.net (64.159.1.42) 74.247 ms 74.028 ms 73.995 ms 5 ae-23-52.car3.NewYork1.Level3.net (4.68.97.50) 74.067 ms ae-13-55.car3.NewYork1.Level3.net (4.68.97.146) 74.204 ms ae-13-51.car3.NewYork1.Level3.net (4.68.97.18) 74.171 ms 6 ggr2-p360.n54ny.ip.att.net (192.205.33.93) 288.354 ms att-level3-oc192.NewYork1.Level3.net (4.68.127.150) 88.747 ms 122.789 ms 7 tbr1-p010401.n54ny.ip.att.net (12.123.3.57) 75.670 ms 75.901 ms 76.346 ms 8 gar4-p300.n54ny.ip.att.net (12.123.3.2) 253.718 ms 150.569 ms 113.689 ms 9 mdf16-gsr12-2-pos-7-0.nyc2.attens.com (12.122.255.214) 295.640 ms 296.016 ms 295.561 ms 10 mdf19-bi8k-2-eth-1-2.nyc2.attens.net (63.240.0.110) 295.347 ms 296.296 ms 295.773 ms 11 63.240.5.102 (63.240.5.102) 297.601 ms 296.192 ms 296.644 ms 12 * * * 13 dns10.register.com (216.21.226.75) 296.623 ms 295.915 ms 296.313 ms