https://e-sygoing.link Latest links in the Numbering category en-us Tue, 26 May 2026 22:11:13 -0400 https://e-sygoing.link/link/5566501-800-service-management-system Information about the central database for US toll free number management. Thu, 26 Feb 2026 15:15:03 -0500 https://e-sygoing.link/go/5566501 https://e-sygoing.link/link/5566504-area-code-information Detailed information on the history and current developments in North American NPA allocations. Sun, 12 Jan 2025 01:47:08 -0500 https://e-sygoing.link/go/5566504 https://e-sygoing.link/link/5566505-international-numbering-plans A collection of all international numbering plans in the world. Some features require a paid subscription. Tue, 02 Jul 2024 11:52:39 -0400 https://e-sygoing.link/go/5566505 https://e-sygoing.link/link/5566503-number-portability Collates information on the regional initiatives in place to develop number portability and number pooling in the US. Mon, 08 Jan 2024 16:47:04 -0500 https://e-sygoing.link/go/5566503