MVC View (Dont want to reapeat the Id's) - html

Question

I have a WCF service and and we had to generate a records of clients who have consumed free credit.
I have generated that records but now clients with same login ID's are repeating in the records.
I dnt want to display the login ID again but want to display all the numbers they have called.
Here is the code of my view
#model IEnumerable<MyYello.Admin.Models.CallHistory>
#{ViewBag.Title = "UsersWhoHaveConsumedFreeCredit";
Layout = "~/Views/Shared/_Layout.cshtml";
}
<h2>Users Who Have Consumed Free Credit</h2>
<table class="table table-striped table-bordered tablesorter" style="display: block">
<thead>
<tr>
<th>Login</th>
<th>FirstName</th>
<th>LastName</th>
<th>Email</th>
<th>Country</th>
<th>Phone</th>
<th>TarrifDesc</th>
<th>CalledNum</th>
<th>CallStart</th>
<th>CallEnd</th>
</tr>
</thead>
<tbody>
#foreach (var item in Model)
{
<tr>
<td>#item.Login</td>
<td>#item.FirstName</td>
<td>#item.LastName</td>
<td>#item.Email</td>
<td>#item.Country</td>
<td>#item.Phone</td>
<td>#item.TariffDescription</td>
</tr>
}
#if (!Model.Any())
{
<tr>
<td colspan="14">No Record Found</td>
</tr>
}
</tbody>
</table>
Just need an idea how

Answer 1

You should group by user login first then. Here's an example:
#foreach (var group in Model.GroupBy(history => history.Login))
{
var item = group.First();
<tr>
<td>#item.Login</td>
<td>#item.FirstName</td>
<td>#item.LastName</td>
<td>#item.Email</td>
<td>#item.Country</td>
<td>#string.Join(" - ", group.Select(history => history.Phone))</td>
<td>#item.TariffDescription</td>
</tr>
}