diff --git a/lib/db-utils.js b/lib/db-utils.js
index b76610b..43ee6da 100644
--- a/lib/db-utils.js
+++ b/lib/db-utils.js
@@ -100,7 +100,7 @@ module.exports = (srf, logger) => {
   };
 
   const getApplicationForDidAndCarrier = async(req, voip_carrier_sid) => {
-    const did = normalizeDID(req.calledNumber);
+    const did = normalizeDID(req.calledNumber) || 'anonymous';
 
     try {
       /* straight DID match */
@@ -214,7 +214,7 @@ module.exports = (srf, logger) => {
       if (matches.length) {
         /* we have one or more matches.  Now check for one with a provisioned phone number matching the DID */
         const vc_sids = matches.map((m) => `'${m.voip_carrier_sid}'`).join(',');
-        const did = normalizeDID(req.calledNumber);
+        const did = normalizeDID(req.calledNumber) || 'anonymous';
         const sql =  `SELECT * FROM phone_numbers WHERE number = '${did}' AND voip_carrier_sid IN (${vc_sids})`;
         logger.debug({matches, sql, did, vc_sids}, 'looking up DID');