https://forums.invisionite.com/topic/156-full-list-of-neos-airlines-%C2%AE%EF%B8%8F-customer%E2%84%A2-service%C2%AE%EF%B8%8F-usa-contact-numbers-a-step-by-step-guide/

https://forums.invisionite.com/topic/137-full%E2%84%A2-list-of-official-%E2%89%8Bexpedia%C2%AE%C2%AE-customer%C2%AE-service%E2%84%A2-247-live-person-support-a-complete-guide/

https://forums.invisionite.com/topic/155-full-list-of-official-latam-airlines%E2%84%A2%EF%B8%8F-contact-numbers%C2%AE%EF%B8%8F-in-the-a-complete-guide/

https://forums.invisionite.com/topic/154-complete-full-list-of-cathay-pacific%C2%AE%EF%B8%8F-customer%C2%AE%EF%B8%8F-service%E2%84%A2-contact-numbers-in-the-usa-a-step-by-step-guide/

https://forums.invisionite.com/topic/150-complete-list-of-delta-airlines-%C2%A0-customer-service%C2%AE-contact-numbers-in-usa-a-step-by-step-guide/

https://forums.invisionite.com/topic/139-full-list-of-%E2%89%8B%E3%80%90travelocity-%E3%80%91%C2%AE%EF%B8%8F%E2%84%A2-customer-service%E2%84%97-hotlines-quick-access-to-human-support-complete-guide/

https://forums.invisionite.com/topic/148-complete-list-of-expedia-customer-service%C2%AE-contact-numbers-in-usa-a-step-by-step-guide/

https://forums.invisionite.com/topic/138-complete-full-list-of-virgin-atlantic-airways%C2%AE%EF%B8%8F-customer%C2%AE%EF%B8%8F-service%E2%84%A2-contact-numbers-in-the-usa-a-step-by-step-guide/

https://www.buzzfeed.com/copa855guide/full-a-list-of-copa-airlinesa-customer-service

https://forums.invisionite.com/topic/136-complete-list-of-official-ita-airways-%C2%AE%EF%B8%8F-customer%C2%AE%EF%B8%8F-contact-numbers-in-an-updated-guide/