112:
38:
297:, these are the related Man-Machine Interface (MMI); they are standardized so they are the same on every GSM phone. They are interpreted by the handset first before a corresponding command (not the code itself) is sent to the network. These codes might not always work when using an AT interface; there are standard AT commands defined for each of these actions instead.
172:
Subsequently, one or more mobile terminated SMS messages communicate the status and/or results of the initial request. In such cases, SMS is used to "push" a reply or updates to the handset when the network is ready to send them. In contrast, USSD is used for command-and-control only.
103:
When a user sends a message to the phone company network, it is received by a computer dedicated to USSD. The computer's response is sent back to the phone, generally in a basic format that can easily be seen on the phone display. Messages sent over USSD are not defined by any
83:
browsing, prepaid callback service, mobile-money services, location-based content services, menu-based information services, and as part of configuring the phone on the network. The service does not require a messaging app, and does not incur charges.
239:
A USSD message typically starts with an asterisk symbol (*) or a hash symbol (#) and is terminated with a hash symbol (#). A typical message comprises digits for commands or data; groups of digits may be separated by additional asterisks.
91:
messages, USSD messages create a real-time connection during a USSD session. The connection remains open, allowing a two-way exchange of a sequence of data. This makes USSD faster than services that use SMS.
1406:
130:
USSD is commonly used by prepaid GSM cellular phones to query the available balance. The vendor's "check balance" application hides the details of the USSD protocol from the user. On some
138:, once a user performs an action that costs money, the user sees a USSD message with their new balance. USSD can also be used to refill the balance on the user's
164:
USSD is sometimes used in conjunction with SMS. The user sends a request to the network via USSD, and the network replies with an acknowledgement of receipt:
1414:
588:
1350:
1569:
1481:
95:
While GSM is being phased out in the 2020s with 2G and 3G technologies, USSD services can be supported over LTE, 5G, and IMS.
1499:
1259:
1308:
127:
service (to reduce phone charges while roaming), enhance mobile marketing capabilities or interactive data services.
181:
Most GSM phones have USSD capability. USSD is generally associated with real-time or instant messaging services. An
480:
124:
80:
31:
1331:
182:
1224:
193:
149:
Some operators use USSD to provide access to real-time updates from social-networking websites including
1229:
192:
USSD Phase 1, as specified in GSM 02.90, only supports mobile-initiated ("pull") operations. In the
534:
912:
password is network dependent, default on some networks is 0000. Incompatible with call diversion
1574:
1544:
1358:
1234:
228:
220:
197:
76:
65:
1516:
456:
password is network dependent, default on some networks is 0000. See call barring functions *33
1219:
341:
is number of seconds for the No Reply
Condition Timer, default is 20 seconds if not specified.
266:
when the user receives a push message from the network; primarily used for promotional services
1579:
1290:
131:
17:
108:
body, so each network operator can implement whatever is most suitable for its customers.
8:
72:
186:
143:
1539:
1380:
189:
capability supported by other short-message protocols such as SMS is not available.
1533:
1454:
1428:
168:"Thank you, your message is being processed. A message will be sent to your phone."
1549:
1267:
105:
158:
1563:
1500:"Man-Machine Interface (MMI) of the User Equipment - ETSI TS 122 030 V10.0.0"
119:
device (2018). The user submits a code corresponding to the service available
42:
1214:
200:, USSD Phase 2, as specified in GSM 03.90. After entering a USSD code on a
135:
116:
219:, a solution is available for supporting USSD services directly from the
641:
1455:"GSM 03.90 (ETSI TS 100 549, V7.0.0) Specification (USSD) – Stage 2"
1429:"GSM 02.90 (ETSI TS 100 625, V7.0.0) Specification (USSD) – Stage 1"
111:
150:
139:
123:
USSD can be used to provide independent calling services such as a
345:
GSM USSD codes and their functions with various network operators
154:
87:
USSD messages are up to 182 alphanumeric characters long. Unlike
992:
password is network dependent, default on some networks is 0000
952:
password is network dependent, default on some networks is 0000
872:
password is network dependent, default on some networks is 0000
832:
password is network dependent, default on some networks is 0000
792:
password is network dependent, default on some networks is 0000
752:
password is network dependent, default on some networks is 0000
712:
password is network dependent, default on some networks is 0000
255:
when the user dials a code, e.g. *139# from a GSM mobile handset
37:
664:
suppressing the transmission of caller's phone number (CLIR)
1309:"TATA Docomo introduces Facebook, Twitter access via USSD"
1554:
205:
201:
88:
69:
1534:
GSM 04.90 (ETSI EN 300 957, V7.0.1) Specification (USSD)
231:
network, providing a similar user experience as in GSM.
161:
project provided access to
Knowledge articles via USSD.
1517:"What's the difference between USSD, MMI and SS codes?"
829:
outgoing international call barring, excluding to home
224:
216:
212:
303:
is the type of bearer service, some valid values are:
1545:
What’s the difference between USSD, MMI and SS codes?
1482:"The Future of USSD in the Telecommunications space"
185:is not present in the processing path, so that the
1332:"Getting Knowledge to the people who need it most"
949:incoming call barring, when international roaming
376:unconditional, busy, unreachable, does not answer
1260:"Unstructured Supplementary Services Data (USSD)"
30:"USSD" redirects here. For the organization, see
1561:
211:While GSM is being phased out in the 2020s with
1254:
1252:
1250:
684:temporary change of the transmission of CLIR
709:total incoming and outgoing service barring
208:operator is displayed within a few seconds.
1247:
1230:Call forwarding § Mobile (cell) phones
1155:call divert when busy or pressing reject
687:valid just for the next call; no final #
1479:
1473:
289:
110:
36:
1550:Android USSD codes list (MMI code list)
50:Unstructured Supplementary Service Data
14:
1562:
1407:"Windows Phone 7 doesn't support USSD"
1329:
1120:call divert when off or not reachable
1385:AT&T Residential Wireless Support
1355:AT&T Residential Wireless Support
1288:
1049:incoming call notification when busy
1461:. 3rd Generation Partnership Project
1435:. 3rd Generation Partnership Project
1282:
789:outgoing international call barring
607:all incoming calls will be diverted
176:
1570:Mobile telecommunications standards
1480:Kulkarni, Ajay (10 December 2020).
1032:valid on some mobile networks only
647:as a callee get the CLIP displayed
416:busy, unreachable, does not answer
79:'s computers. USSD can be used for
24:
295:The codes below are not USSD codes
25:
1591:
1527:
1413:. 8 February 2012. Archived from
1340:(Page now obsolete and invalid.)
1330:Wadhwa, Kul (22 February 2013).
322:for SMS (only valid for barring)
196:, the message is delivered over
1509:
1492:
989:total incoming service barring
869:total outgoing service barring
1447:
1421:
1399:
1373:
1343:
1323:
1301:
1081:call divert when not answered
13:
1:
1351:"Monitor usage on your phone"
1240:
413:all conditional redirections
157:. Between 2012 and 2018, the
56:), sometimes referred to as "
32:United States Society on Dams
243:
204:handset, the reply from the
7:
1289:Scard, Jen (12 July 2022).
1225:Supplementary service codes
1208:
89:short message service (SMS)
10:
1596:
29:
1029:Call back on busy (CCBS)
667:for all subsequent calls
595:
566:
540:
512:
486:
458:
234:
453:Change Network password
75:to communicate with the
1555:All usa USSD Codes List
1505:. May 2011. p. 30.
1338:. Wikimedia Foundation.
1235:SIM Application Toolkit
252:USSD/ PULL or USSD/ P2A
98:
77:mobile network operator
66:communications protocol
27:Communications protocol
1220:Ultra Mobile Broadband
909:incoming call barring
749:outgoing call barring
564:Only with Phase 2 SIM
510:Only with Phase 2 SIM
263:USSD/ PUSH or USSD/A2P
120:
46:
1381:"Manage your account"
604:unconditional divert
290:Man-Machine Interface
114:
40:
587:read device number (
561:Change PIN2 via PUK
346:
332:<leave blank>
283:*139*1*1234567890#
273:Example USSD codes
73:cellular telephones
45:mobile phone (2005)
344:
259:Network-initiated
177:Technical details
144:one-time passwords
134:networks, such as
121:
47:
1411:Microsoft Answers
1206:
1205:
1052:aka call waiting
644:displayed (CLIP)
287:
286:
248:Mobile-initiated
187:store-and-forward
16:(Redirected from
1587:
1521:
1520:
1513:
1507:
1506:
1504:
1496:
1490:
1489:
1477:
1471:
1470:
1468:
1466:
1451:
1445:
1444:
1442:
1440:
1425:
1419:
1418:
1403:
1397:
1396:
1394:
1392:
1377:
1371:
1370:
1368:
1366:
1357:. Archived from
1347:
1341:
1339:
1327:
1321:
1320:
1318:
1316:
1305:
1299:
1298:
1286:
1280:
1279:
1277:
1275:
1270:on March 3, 2021
1266:. Archived from
1256:
347:
343:
270:
269:
21:
1595:
1594:
1590:
1589:
1588:
1586:
1585:
1584:
1560:
1559:
1530:
1525:
1524:
1515:
1514:
1510:
1502:
1498:
1497:
1493:
1478:
1474:
1464:
1462:
1453:
1452:
1448:
1438:
1436:
1427:
1426:
1422:
1417:on 3 July 2012.
1405:
1404:
1400:
1390:
1388:
1379:
1378:
1374:
1364:
1362:
1349:
1348:
1344:
1328:
1324:
1314:
1312:
1307:
1306:
1302:
1291:"What is USSD?"
1287:
1283:
1273:
1271:
1258:
1257:
1248:
1243:
1211:
1202:Display status
642:caller's number
459:* * 03 * 330 *
373:all diversions
365:Display status
292:
246:
237:
179:
142:and to deliver
106:standardization
101:
35:
28:
23:
22:
15:
12:
11:
5:
1593:
1583:
1582:
1577:
1575:3GPP standards
1572:
1558:
1557:
1552:
1547:
1542:
1540:3GPP TS 22.030
1537:
1536:Stage 3 – 3GPP
1529:
1528:External links
1526:
1523:
1522:
1508:
1491:
1472:
1446:
1420:
1398:
1372:
1361:on 11 May 2012
1342:
1336:Wikimedia blog
1322:
1311:. 16 July 2011
1300:
1295:Wireless Logic
1281:
1245:
1244:
1242:
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533:Change PIN by
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159:Knowledge Zero
146:or PIN codes.
100:
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26:
9:
6:
4:
3:
2:
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1264:Telecom Space
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132:pay as you go
128:
126:
118:
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109:
107:
96:
93:
90:
85:
82:
78:
74:
71:
67:
63:
62:feature codes
59:
55:
51:
44:
43:Sony Ericsson
39:
33:
19:
1580:GSM standard
1511:
1494:
1485:
1475:
1463:. Retrieved
1458:
1449:
1437:. Retrieved
1432:
1423:
1415:the original
1410:
1401:
1389:. Retrieved
1384:
1375:
1363:. Retrieved
1359:the original
1354:
1345:
1335:
1325:
1313:. Retrieved
1303:
1294:
1284:
1272:. Retrieved
1268:the original
1263:
1215:USSD Gateway
1179:
1172:
1165:
1161:
1144:
1137:
1130:
1126:
1109:
1102:
1095:
1091:
1087:
1070:
1063:
1056:
1018:
1017:* # 353 * *
1011:
1007:
1000:
996:
978:
977:* # 351 * *
971:
967:
960:
956:
938:
931:
927:
920:
916:
898:
897:* # 333 * *
891:
887:
880:
876:
858:
857:* # 332 * *
851:
847:
840:
836:
818:
817:* # 331 * *
811:
807:
800:
796:
778:
771:
767:
760:
756:
738:
737:* # 330 * *
731:
727:
720:
716:
697:
691:
629:
622:
615:
611:
576:
572:
568:
550:
546:
542:
522:
518:
514:
507:Change PIN2
496:
492:
488:
469:new password
468:
465:new password
464:
461:old password
460:
442:
441:* # 004 * *
435:
434:# # 004 * *
428:
424:
420:
402:
401:* # 002 * *
395:
394:# # 002 * *
388:
384:
380:
338:
337:
331:
325:
319:
313:
307:
300:
299:
294:
293:
258:
247:
238:
210:
194:core network
191:
180:
171:
163:
148:
136:Tesco Mobile
129:
122:
117:Google Pixel
102:
94:
86:
61:
57:
53:
49:
48:
1178:* # 67 * *
1171:# # 67 * *
1143:* # 62 * *
1136:# # 62 * *
1108:* # 61 * *
1101:# # 61 * *
1069:* # 43 * *
937:* # 35 * *
777:* # 33 * *
628:* # 21 * *
621:# # 21 * *
58:quick codes
1564:Categories
1387:. AT&T
1274:August 23,
1241:References
1199:Switch off
567:* * 052 *
513:* * 042 *
419:* * 004 *
379:* * 002 *
362:Switch off
115:USSD on a
41:USSD on a
1196:Switch on
1160:* * 67 *
1125:* * 62 *
1086:* * 61 *
1041:* # 37 #
676:* # 31 #
656:* # 30 #
610:* * 21 *
596:* # 06 #
541:* * 05 *
487:* * 04 *
359:Switch on
310:for voice
244:USSD mode
1459:3gpp.org
1433:3gpp.org
1209:See also
1190:Function
1008:password
1006:# 353 *
997:password
995:* 353 *
968:password
966:# 351 *
957:password
955:* 351 *
928:password
917:password
888:password
886:# 333 *
877:password
875:* 333 *
848:password
846:# 332 *
837:password
835:* 332 *
808:password
806:# 331 *
797:password
795:* 331 *
768:password
757:password
728:password
726:# 330 *
717:password
715:* 330 *
640:get the
577:new PIN2
573:new PIN2
523:new PIN2
519:new PIN2
515:old PIN2
353:Function
334:for all.
328:for data
151:Facebook
140:SIM card
125:callback
68:used by
64:", is a
1486:Comviva
1062:# 43 *
1055:* 43 *
1038:# 37 #
1035:* 37 #
926:# 35 *
915:* 35 *
766:# 33 *
755:* 33 *
696:* 31 #
690:# 31 #
673:* 31 #
670:# 31 #
653:# 30 #
650:* 30 #
551:new PIN
547:new PIN
497:new PIN
493:new PIN
489:old PIN
479:Change
316:for fax
155:Twitter
1465:11 May
1439:11 May
1391:11 May
1365:14 May
1315:12 Nov
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381:number
278:*101#
235:Format
60:" or "
1503:(pdf)
1467:2013
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1317:2019
1276:2010
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706:330
589:IMEI
558:052
504:042
410:004
370:002
356:Note
350:Code
215:and
183:SMSC
153:and
99:Uses
54:USSD
18:USSD
1152:67
1117:62
1078:61
1046:43
1026:37
906:35
746:33
681:31
661:31
637:30
601:21
584:06
569:PUK
543:PUK
535:PUK
530:05
481:PIN
476:04
450:03
229:IMS
221:LTE
206:GSM
202:GSM
198:MAP
81:WAP
70:GSM
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