diff --git a/src/components/forms/ApplicationForm.js b/src/components/forms/ApplicationForm.js
index 5c92656..241c4ff 100644
--- a/src/components/forms/ApplicationForm.js
+++ b/src/components/forms/ApplicationForm.js
@@ -120,7 +120,7 @@ const ApplicationForm = props => {
           applicationsPromise,
         ]);
 
-        const accounts     = promiseAllValues[0].data;
+        const accounts     = promiseAllValues[0].data.filter(a => a.service_provider_sid === currentServiceProvider);
         const applications = promiseAllValues[1].data;
 
         setAccounts(accounts);
diff --git a/src/components/forms/CarrierForm.js b/src/components/forms/CarrierForm.js
index 7ca74c5..a9fd6f9 100644
--- a/src/components/forms/CarrierForm.js
+++ b/src/components/forms/CarrierForm.js
@@ -5,6 +5,7 @@ import styled from "styled-components/macro";
 import { Menu, Dropdown } from "antd";
 
 import { NotificationDispatchContext } from '../../contexts/NotificationContext';
+import { ServiceProviderValueContext } from '../../contexts/ServiceProviderContext';
 import Form from '../elements/Form';
 import Input from '../elements/Input';
 import PasswordInput from '../elements/PasswordInput';
@@ -18,7 +19,6 @@ import Loader from '../blocks/Loader';
 import sortSipGateways from '../../helpers/sortSipGateways';
 import Select from '../elements/Select';
 import handleErrors from "../../helpers/handleErrors";
-import { ServiceProviderValueContext } from '../../contexts/ServiceProviderContext'
 
 const StyledForm = styled(Form)`
   @media (max-width: 978.98px) {
@@ -185,6 +185,8 @@ const CarrierForm = (props) => {
   ]);
 
   const [ applicationValues, setApplicationValues ] = useState([]);
+  const [ accounts, setAccounts ] = useState([]);
+  const [ accountSid, setAccountSid ] = useState('');
 
   const [ carrierSid,   setCarrierSid   ] = useState('');
   const [ showLoader,   setShowLoader   ] = useState(true);
@@ -220,7 +222,16 @@ const CarrierForm = (props) => {
             Authorization: `Bearer ${jwt}`,
           },
         });
+        const accountsPromise = axios({
+          method: 'get',
+          baseURL: process.env.REACT_APP_API_BASE_URL,
+          url: '/Accounts',
+          headers: {
+            Authorization: `Bearer ${jwt}`,
+          },
+        });
         promises.push(applicationPromise);
+        promises.push(accountsPromise);
 
         if (type === 'edit') {
           const carrierPromise = axios({
@@ -248,11 +259,12 @@ const CarrierForm = (props) => {
         const promiseResponses = await Promise.all(promises);
 
         setApplicationValues(promiseResponses[0].data);
+        setAccounts(promiseResponses[1].data);
 
         if (type === 'edit') {
 
-          const carrier = promiseResponses[1].data;
-          const allSipGateways = promiseResponses[2].data;
+          const carrier = promiseResponses[2].data;
+          const allSipGateways = promiseResponses[3].data;
 
           if (!carrier) {
             isMounted = false;
@@ -274,6 +286,7 @@ const CarrierForm = (props) => {
           setName(carrier.name || '');
           setE164(carrier.e164_leading_plus === 1);
           setApplication(carrier.application_sid || '');
+          setAccountSid(carrier.account_sid || '');
           setAuthenticate(carrier.register_username ? true : false);
           setRegister(carrier.requires_register === 1);
           setUsername(carrier.register_username || '');
@@ -639,6 +652,7 @@ const CarrierForm = (props) => {
           name: name.trim() || null,
           e164_leading_plus: e164 ? 1 : 0,
           application_sid: application || null,
+          account_sid: accountSid || null,
           requires_register: register ? 1 : 0,
           register_username: username ? username.trim() : null,
           register_password: password ? password : null,
@@ -894,29 +908,65 @@ const CarrierForm = (props) => {
           onChange={e => setE164(e.target.checked)}
         />
 
-        <Label htmlFor="application">Application</Label>
+        <Label htmlFor="account">Used by</Label>
         <Select
-          name="application"
-          id="application"
-          value={application}
-          onChange={e => setApplication(e.target.value)}
+          name="account"
+          id="account"
+          value={accountSid}
+          onChange={(e) => {
+            setAccountSid(e.target.value);
+            setApplication('');
+          }}
         >
           <option value="">
-            {type === 'add'
-              ? '-- OPTIONAL: Application to invoke on calls arriving from this carrier --'
-              : '-- NONE --'
-            }
+            All accounts
           </option>
-          {applicationValues.map(a => (
+          {accounts.filter(a => a.service_provider_sid === currentServiceProvider).map(a => (
             <option
-              key={a.application_sid}
-              value={a.application_sid}
+              key={a.account_sid}
+              value={a.account_sid}
             >
               {a.name}
             </option>
           ))}
         </Select>
 
+        {accountSid && (
+          <>
+            <Label htmlFor="application">Default Application</Label>
+            <Select
+              name="application"
+              id="application"
+              value={application}
+              onChange={e => setApplication(e.target.value)}
+            >
+              <option value="">
+                {type === 'add'
+                  ? '-- OPTIONAL: Application to invoke on calls arriving from this carrier --'
+                  : '-- NONE --'
+                }
+              </option>
+              {applicationValues.filter((a) => {
+                // Map an application to a service provider through it's account_sid
+                const acct = accounts.find(ac => a.account_sid === ac.account_sid);
+    
+                if (accountSid) {
+                  return a.account_sid === accountSid;
+                }
+    
+                return acct.service_provider_sid === currentServiceProvider;
+              }).map(a => (
+                <option
+                  key={a.application_sid}
+                  value={a.application_sid}
+                >
+                  {a.name}
+                </option>
+              ))}
+            </Select>
+          </>
+        )}
+
         <hr style={{ margin: '0.5rem -2rem' }} />
 
         {
diff --git a/src/components/forms/PhoneNumberForm.js b/src/components/forms/PhoneNumberForm.js
index 9376492..2dc92a5 100644
--- a/src/components/forms/PhoneNumberForm.js
+++ b/src/components/forms/PhoneNumberForm.js
@@ -2,6 +2,7 @@ import React, { useState, useEffect, useContext, useRef } from 'react';
 import { useHistory } from 'react-router-dom';
 import axios from 'axios';
 import { NotificationDispatchContext } from '../../contexts/NotificationContext';
+import { ServiceProviderValueContext } from '../../contexts/ServiceProviderContext';
 import Form from '../elements/Form';
 import Input from '../elements/Input';
 import Label from '../elements/Label';
@@ -16,6 +17,7 @@ const PhoneNumberForm = props => {
 
   let history = useHistory();
   const dispatch = useContext(NotificationDispatchContext);
+  const currentServiceProvider = useContext(ServiceProviderValueContext);
 
   // Refs
   const refPhoneNumber = useRef(null);
@@ -358,7 +360,10 @@ const PhoneNumberForm = props => {
             name="account"
             id="account"
             value={account}
-            onChange={e => setAccount(e.target.value)}
+            onChange={(e) => {
+              setAccount(e.target.value);
+              setApplication('');
+            }}
             invalid={invalidAccount}
             ref={refAccount}
           >
@@ -368,7 +373,7 @@ const PhoneNumberForm = props => {
             ) && (
               <option value="">-- Choose the account that this phone number should be associated with --</option>
             )}
-            {accountValues.map(a => (
+            {accountValues.filter(a => a.service_provider_sid === currentServiceProvider).map(a => (
               <option
                 key={a.account_sid}
                 value={a.account_sid}
@@ -391,7 +396,16 @@ const PhoneNumberForm = props => {
                 : '-- NONE --'
               }
             </option>
-            {applicationValues.map(a => (
+            {applicationValues.filter((a) => {
+              // Map an application to a service provider through it's account_sid
+              const acct = accountValues.find(ac => a.account_sid === ac.account_sid);
+
+              if (account) {
+                return a.account_sid === account;
+              }
+
+              return acct.service_provider_sid === currentServiceProvider;
+            }).map(a => (
               <option
                 key={a.application_sid}
                 value={a.application_sid}
diff --git a/src/components/forms/SettingsForm.js b/src/components/forms/SettingsForm.js
index ee7d5a9..80b099b 100644
--- a/src/components/forms/SettingsForm.js
+++ b/src/components/forms/SettingsForm.js
@@ -1,6 +1,7 @@
 import React, { useState, useEffect, useContext, useRef } from 'react';
 import { useHistory } from 'react-router-dom';
 import axios from 'axios';
+import styled from 'styled-components';
 import { NotificationDispatchContext } from '../../contexts/NotificationContext';
 import { ShowMsTeamsDispatchContext } from '../../contexts/ShowMsTeamsContext';
 import Form from '../elements/Form';
@@ -11,9 +12,23 @@ import InputGroup from '../elements/InputGroup';
 import FormError from '../blocks/FormError';
 import Button from '../elements/Button';
 import Loader from '../blocks/Loader';
+import Modal from '../blocks/Modal';
 import { ServiceProviderValueContext } from '../../contexts/ServiceProviderContext';
 import handleErrors from "../../helpers/handleErrors";
 
+const Td = styled.td`
+  padding: 0.5rem 0;
+  &:first-child {
+    font-weight: 500;
+    padding-right: 1.5rem;
+    vertical-align: top;
+  }
+  & ul {
+    margin: 0;
+    padding-left: 1.25rem;
+  }
+`;
+
 const SettingsForm = () => {
   const history = useHistory();
   const dispatch = useContext(NotificationDispatchContext);
@@ -40,8 +55,9 @@ const SettingsForm = () => {
 
   const [ showLoader, setShowLoader ] = useState(true);
   const [ errorMessage, setErrorMessage ] = useState('');
-
   const [ serviceProviderSid, setServiceProviderSid ] = useState('');
+  const [ serviceProviders, setServiceProviders ] = useState([]);
+  const [ confirmDelete, setConfirmDelete ] = useState(false);
 
   useEffect(() => {
     const getSettingsData = async () => {
@@ -59,14 +75,16 @@ const SettingsForm = () => {
         const serviceProvidersResponse = await axios({
           method: 'get',
           baseURL: process.env.REACT_APP_API_BASE_URL,
-          url: `/ServiceProviders/${currentServiceProvider}`,
+          url: `/ServiceProviders`,
           headers: {
             Authorization: `Bearer ${localStorage.getItem('token')}`,
           },
         });
 
-        const sp = serviceProvidersResponse.data;
+        const sps = serviceProvidersResponse.data;
+        const sp = sps.find(s => s.service_provider_sid === currentServiceProvider);
 
+        setServiceProviders(sps);
         setServiceProviderName(sp.name || '');
         setServiceProviderSid(sp.service_provider_sid || '');
         setEnableMsTeams(sp.ms_teams_fqdn ? true : false);
@@ -96,6 +114,32 @@ const SettingsForm = () => {
     setEnableMsTeams(e.target.checked);
   };
 
+  const handleDelete = () => {
+    setErrorMessage('');
+
+    axios({
+      method: 'delete',
+      baseURL: process.env.REACT_APP_API_BASE_URL,
+      url: `/ServiceProviders/${serviceProviderSid}`,
+      headers: {
+        Authorization: `Bearer ${localStorage.getItem('token')}`,
+      },
+    })
+    .then(() => {
+      setConfirmDelete(false);
+      setErrorMessage('');
+      history.push('/internal/accounts');
+      dispatch({
+        type: 'ADD',
+        level: 'success',
+        message: 'Service Provider Deleted'
+      });
+    })
+    .catch((error) => {
+      setErrorMessage(error.response.data.msg);
+    });
+  };
+
   const handleSubmit = async (e) => {
     let isMounted = true;
     try {
@@ -210,69 +254,114 @@ const SettingsForm = () => {
   return (
     showLoader
     ? <Loader height="365px" />
-    : <Form
-        large
-        wideLabel
-        onSubmit={handleSubmit}
-      >
-        <Label htmlFor="serviceProviderName">Service Provider Name</Label>
-        <Input
-          name="serviceProviderName"
-          id="serviceProviderName"
-          value={serviceProviderName}
-          onChange={e => setServiceProviderName(e.target.value)}
-          invalid={invalidServiceProviderName}
-          ref={refServiceProviderName}
-        />
-        <div>{/* needed for CSS grid layout */}</div>
-        <Checkbox
-          noLeftMargin
-          id="enableMsTeams"
-          label="Enable Microsoft Teams Direct Routing"
-          checked={enableMsTeams}
-          onChange={toggleMsTeams}
-          invalid={invalidEnableMsTeams}
-          ref={refEnableMsTeams}
-        />
+    : (
+      <>
+        <Form
+          large
+          wideLabel
+          onSubmit={handleSubmit}
+        >
+          <Label htmlFor="serviceProviderName">Service Provider Name</Label>
+          <Input
+            name="serviceProviderName"
+            id="serviceProviderName"
+            value={serviceProviderName}
+            onChange={e => setServiceProviderName(e.target.value)}
+            invalid={invalidServiceProviderName}
+            ref={refServiceProviderName}
+          />
+          <div>{/* needed for CSS grid layout */}</div>
+          <Checkbox
+            noLeftMargin
+            id="enableMsTeams"
+            label="Enable Microsoft Teams Direct Routing"
+            checked={enableMsTeams}
+            onChange={toggleMsTeams}
+            invalid={invalidEnableMsTeams}
+            ref={refEnableMsTeams}
+          />
 
-        <Label htmlFor="sbcDomainName">SBC Domain Name</Label>
-        <Input
-          name="sbcDomainName"
-          id="sbcDomainName"
-          value={sbcDomainName}
-          onChange={e => setSbcDomainName(e.target.value)}
-          placeholder="Fully qualified domain name used for Microsoft Teams"
-          invalid={invalidSbcDomainName}
-          autoFocus={enableMsTeams}
-          ref={refSbcDomainName}
-          disabled={!enableMsTeams}
-          title={(!enableMsTeams && "You must enable Microsoft Teams Direct Routing in order to provide an SBC Domain Name") || ""}
-        />
+          <Label htmlFor="sbcDomainName">SBC Domain Name</Label>
+          <Input
+            name="sbcDomainName"
+            id="sbcDomainName"
+            value={sbcDomainName}
+            onChange={e => setSbcDomainName(e.target.value)}
+            placeholder="Fully qualified domain name used for Microsoft Teams"
+            invalid={invalidSbcDomainName}
+            autoFocus={enableMsTeams}
+            ref={refSbcDomainName}
+            disabled={!enableMsTeams}
+            title={(!enableMsTeams && "You must enable Microsoft Teams Direct Routing in order to provide an SBC Domain Name") || ""}
+          />
 
-        {errorMessage && (
-          <FormError grid message={errorMessage} />
-        )}
+          {errorMessage && !confirmDelete && (
+            <FormError grid message={errorMessage} />
+          )}
 
-        <InputGroup flexEnd spaced>
-          <Button
-            grid
-            gray
-            type="button"
-            onClick={() => {
-              history.push('/internal/accounts');
-              dispatch({
-                type: 'ADD',
-                level: 'info',
-                message: 'Changes canceled',
-              });
+          <InputGroup flexEnd spaced>
+            <Button
+              grid
+              gray
+              type="button"
+              onClick={() => {
+                history.push('/internal/accounts');
+                dispatch({
+                  type: 'ADD',
+                  level: 'info',
+                  message: 'Changes canceled',
+                });
+              }}
+            >
+              Cancel
+            </Button>
+            {serviceProviders.length > 1 && (
+              <Button
+                grid
+                gray
+                type="button"
+                onClick={() => setConfirmDelete(true)}
+              >
+                Delete
+              </Button>
+            )}
+            <Button grid>Save</Button>
+          </InputGroup>
+        </Form>
+
+        {confirmDelete && serviceProviders.length > 1 && (
+          <Modal
+            title="Are you sure you want to delete the Service Provider?"
+            loader={false}
+            content={
+              <div>
+                <table>
+                  <tbody>
+                    <tr>
+                      <Td>Service Provider Name:</Td>
+                      <Td>{serviceProviderName}</Td>
+                    </tr>
+                    <tr>
+                      <Td>SBC Domain Name:</Td>
+                      <Td>{sbcDomainName || '[none]'}</Td>
+                    </tr>
+                  </tbody>
+                </table>
+                {errorMessage && (
+                  <FormError message={errorMessage} />
+                )}
+              </div>
+            }
+            handleCancel={() => {
+              setConfirmDelete(false);
+              setErrorMessage('');
             }}
-          >
-            Cancel
-          </Button>
-
-          <Button grid>Save</Button>
-        </InputGroup>
-      </Form>
+            handleSubmit={handleDelete}
+            actionText="Delete"
+          />
+        )}
+      </>
+    )
   );
 };