Calling Abbreviations and Acronyms

1. ISCS
   International Shared-Cost Service
2. ISCS
   International Shared Cost Service
3. ISCS
   International Shared Cost Services
4. ISD
   International Standard Dialing
5. ISD
   International Subscribers Dialing
6. ISDNUP
   Iltegrated Services Digital Network User Part
7. ISN
   Intelligent Gervices Network
8. IT
   Immedlate Transport
9. IT
   In Touch
10. ITFN
    International Toll Free Numbers
11. ITFS
    International Toll Free Serviqe
12. ITFS
    International Toll Free Services
13. ITFS
    International Toll-Free Service
14. ITFS
    International Toll-Free Services
15. ITG
    Internet Telephony Gateway
16. ITI
    Inmate Telephone, Inc
17. ITI
    Inmate Telephone Inc
18. ITSP
    Internet Telephone Service Provider
19. ITSPS
    Internet Telephone Service Providers
20. ITSPS
    Internet Telephony Service Providers

Last updated: January 4, 2020 — Total entries: 1,247