aut-num: AS273374 owner: BLACK FIBRA TELECOM LTDA responsible: Isabella Quintana Ribeiro Hoffmann Rosa owner-c: IQRHR routing-c: IQRHR abuse-c: IQRHR created: 20231027 changed: 20231027 inetnum: 2804:8db0::/32 nic-hdl-br: IQRHR person: Isabella Quintana Ribeiro Hoffmann Rosa created: 20210926 changed: 20231009