Vietnam +84
Number Format
Area Code: 1-3 digits
Subscriber Number: 7-8 digits (previously 5-7 digits)
Trunk Prefix: 0
International Prefix: 00
Hanoi (+84 4) and Ho Chi Minh City (+84 8) have 8-digit subscriber numbers. All other area codes have 6- or 7-digit subscriber numbers. Some special non-geographic services such as government agencies have 4 to 6 digit subscriber numbers.
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Area code information
September 2009 - +84 129 Vinaphone
New Vinaphone number range +84 129 xxxxxxx was introduced since July 2009 numbering list.
Sources: MIC announcement (24 September 2009, via ITU); Vietname Telecom International.
July 2009 - numbering plan update
Number range Service
------------ -------
+84 121 xxxxxxx mobile, GSM (VNPT)
+84 122 xxxxxxx mobile, GSM (VNPT)
+84 123 xxxxxxx mobile, GSM (VNPT)
+84 126 xxxxxxx mobile, GSM (VNPT)
+84 164 xxxxxxx mobile (Viettel)
+84 166 xxxxxxx mobile (Viettel)
+84 167 xxxxxxx mobile (Viettel)
+84 168 xxxxxxx mobile (Viettel)
+84 169 xxxxxxx mobile (Viettel)
+84 1800 xxxx(xx) freephone service
+84 1900 xxxx(xx) premium service
+84 199 xxxxxxx mobile (Beeline NV/GTEL)
+84 199 xxxx Foreign Affairs Ministry
+84 20 xxxxxxx Lao Cai province
+84 210 xxxxxxx Phu Tho province
+84 211 xxxxxxx Vinh Phu province
+84 218 xxxxxxx  Hoa Binh province
+84 219 xxxxxx Ha Giang province
+84 22 xxxxxxx Son La province
+84 230 xxxxxxx Dien Bien province
+84 231 xxxxxxx Lai Chau province
+84 240 xxxxxxx Bac Giang province
+84 241 xxxxxxx Bac Ninh province
+84 25 xxxxxxx Lang Son province
+84 26 xxxxxxx Cao Bang province
+84 27 xxxxxxx Tuyen Quang province
+84 280 xxxxxxx Thai Nguyen province
+84 281 xxxxxxx Bac Can province
+84 29 xxxxxxx Yen Bai province
+84 30 xxxxxxx Ninh Binh province
+84 31 xxxxxxx Hai Phong province
+84 320 xxxxxxx Hai Duong province
+84 321 xxxxxxx Hung Yen province
+84 33 xxxxxxx Quang Ninh province
+84 350 xxxxxxx Nam Dinh province
+84 351 xxxxxxx Ha Nam province
+84 36 xxxxxxx Thai Binh province
+84 37 xxxxxxx Thanh Hoa province
+84 38 xxxxxxx Nghe An province
+84 39 xxxxxxx Ha Tinh province
+84 4 xxxxxxxx Hanoi (Ha Noi City)
+84 500 xxxxxxx Dac Lac province
+84 501 xxxxxxx Dac Nong province
+84 510 xxxxxxx Quang Nam province
+84 511 xxxxxxx Da Nang province
+84 52 xxxxxxx Quang Binh province
+84 53 xxxxxxx Quang Tri province
+84 54 xxxxxxx Thua Thien Hue province
+84 55 xxxxxxx Quang Ngai province
+84 56 xxxxxxx Binh Dinh province
+84 57 xxxxxxx Phu Yen province
+84 58 xxxxxxx Khanh Hoa province
+84 59 xxxxxxx Gia Lai province
+84 60 xxxxxxx Kon Tum province
+84 61 xxxxxxx Dong Nai province
+84 62 xxxxxxx Binh Thuan province
+84 63 xxxxxxx Lam Dong province
+84 64 xxxxxxx Ba Ria-Vung Tau province
+84 650 xxxxxxx Binh Duong province
+84 651 xxxxxxx Binh Phuoc province
+84 66 xxxxxxx Tay Ninh province
+84 67 xxxxxxx Dong Thap province
+84 68 xxxxxxx Ninh Thuan province
+84 69 xxxxx(x) Ministries of National Defense and Home Affairs
+84 70 xxxxxxx Vinh Long province
+84 710 xxxxxxx Can Tho province
+84 711 xxxxxxx Hau Giang province
+84 72 xxxxxxx Long An province
+84 73 xxxxxxx Tien Giang province
+84 74 xxxxxxx Tra Vinh province
+84 75 xxxxxxx Ben Tre province
+84 76 xxxxxxx An Giang province
+84 77 xxxxxxx Kien Giang province
+84 780 xxxxxxx Ca Mau province
+84 781 xxxxxxx Bac Lieu province
+84 79 xxxxxxx Soc Trang province
+84 799 xxxx Foreign Affairs Ministry
+84 8 xxxxxxxx Ho Chi Minh City
+84 80 xxxxx Central Post and Telecom Division
+84 90 xxxxxxx mobile (VNPT Mobifone)
+84 91 xxxxxxx mobile (VNPT Vinafone)
+84 92 xxxxxxx mobile, CDMA (HTC)
+84 93 xxxxxxx mobile (VNPT Mobifone) - since 1 June 2006
+84 94 xxxxxxx mobile (VNPT Vinafone) - since 15 September 2006
+84 95 xxxxxxx mobile, CDMA (SPT)
+84 96 xxxxxxx mobile, CDMA (EVN)
+84 97 xxxxxxx mobile (Viettel)
+84 98 xxxxxxx mobile (Viettel)
+84 99 xxxxxx VSAT
Source: MIC announcement (9 July 2009, via ITU, superseded Sept 2009)
5 October 2008 - national numbering expansion
Existing subscriber numbers were expanded by a digit on 5 October 2008. In Hanoi and Ho Chi Minh City, existing 7-digit subscriber numbers became 8-digit format, while in other regions existing 6-digit subscriber numbers became 7-digit. Permissive use of old format numbers was allowed until 1 November 2008 (or for some regions and carriers, the mandatory use of new format was introduced as early as 26 October 2008).
The extra digit was prepended to the subscriber number portion (after any area code). In the following table, "a" represents a single-digit area code (Hanoi, Ho Chi Minh), "aa" a 2-digit area code, "aaa" a 3-digit area code:
Carrier Old format New format
------- ---------- ----------
EVN +84 a xxxxxxx +84 a 2xxxxxxx
EVN +84 aa xxxxxx +84 aa 2xxxxxx
EVN +84 aaa xxxxxx +84 aaa 2xxxxxx
VNPT (Vietnam Post & Telecomm) +84 a xxxxxxx +84 a 3xxxxxxx
VNPT (Vietnam Post & Telecomm) +84 aa xxxxxx +84 aa 3xxxxxx
VNPT (Vietnam Post & Telecomm) +84 aaa xxxxxx +84 aaa 3xxxxxx
VTC (Vietnam Multimedia Corp) +84 a xxxxxxx +84 a 4xxxxxxx
VTC (Vietnam Multimedia Corp) +84 aa xxxxxx +84 aa 4xxxxxx
VTC (Vietnam Multimedia Corp) +84 aaa xxxxxx +84 aaa 4xxxxxx
SPT (Saigon Postel Corp) +84 a xxxxxxx +84 a 5xxxxxxx
SPT (Saigon Postel Corp) +84 aa xxxxxx +84 aa 5xxxxxx
SPT (Saigon Postel Corp) +84 aaa xxxxxx +84 aaa 5xxxxxx
Viettel Telecom +84 a xxxxxxx +84 a 6xxxxxxx
Viettel Telecom +84 aa xxxxxx +84 aa 6xxxxxx
Viettel Telecom +84 aaa xxxxxx +84 aaa 6xxxxxx
A few regions were annexed into Hanoi's +84 4 area code by 1 November 2008:
- Ha Tay - the previous area code +84 34 was replaced with +84 4 and subscriber numbers were prepended with an extra digit based on carrier.
- Me Linh area of Vinh Phuc province - +84 211 was replaced with +84 4. Existing VNPT subscriber numbers of form +84 211 5xxxxx became +84 4 352xxxxx (digit '2' inserted after the '5'; new leading digit '3' for carrier VNPT). Existing VNPT subscriber numbers of form +84 211 8xxxxx became +84 4 381xxxxx (digit '1' inserted after the '8'; new leading digit '3' for carrier VNPT).
- Luong Son area of Hoa Binh province - +84 218 was replaced with +84 4. Carrier digit then digit '9' were prepended to existing subscriber numbers; for example, VNPT carrier numbers of form +84 4 820xxxxx or +84 4 821xxxxx became +84 4 39820xxxxx or +84 4 39821xxxxx respectively.
Other areas of Vinh Phuc and Hoa Binh provinces retained the existing area codes; their subscriber numbers were subject to the added carrier digit under the general national renumbering.
For some area codes, no expansion of subscriber numbers was indicated for October 2008 and are indicated as such in the following table.
Old format New format Locality
---------- ---------- --------
+84 20 xxxxxx +84 20 xxxxxxx Lao Cai
+84 210 xxxxxx +84 210 xxxxxxx Phu Tho
+84 211 xxxxxx +84 211 xxxxxxx Vinh Phuc (Me Linh district moved to +84 4)
+84 218 xxxxxx +84 218 xxxxxxx Hoa Binh (Luong Son district moved to +84 4)
+84 219 xxxxxx +84 219 xxxxxxx Ha Giang
+84 22 xxxxxx +84 22 xxxxxxx Son La
+84 230 xxxxxx +84 230 xxxxxxx Dien Bien
+84 231 xxxxxx +84 231 xxxxxxx Lai Chau
+84 240 xxxxxx +84 240 xxxxxxx Bac Giang
+84 241 xxxxxx +84 241 xxxxxxx Bac Ninh
+84 25 xxxxxx +84 25 xxxxxxx Lang Son
+84 26 xxxxxx +84 26 xxxxxxx Cao Bang
+84 27 xxxxxx +84 27 xxxxxxx Tuyen Quang
+84 280 xxxxxx +84 280 xxxxxxx Thai Nguyen
+84 281 xxxxxx +84 281 xxxxxxx Bac Can
+84 29 xxxxxx +84 29 xxxxxxx Yen Bai
+84 30 xxxxxx +84 30 xxxxxxx Ninh Binh
+84 31 xxxxxxx (no changes) Hai Phong
+84 320 xxxxxxx (no changes) Hai Duong
+84 321 xxxxxx +84 321 xxxxxxx Hung Yen
+84 33 xxxxxx +84 33 xxxxxxx Quang Ninh
+84 34 xxxxxx +84 4 xxxxxxxx Ha Tay
+84 350 xxxxxxx (no changes) Nam Dinh
+84 36 xxxxxxx (no changes) Thai Binh
+84 37 xxxxxxx (no changes) Thanh Hoa
+84 38 xxxxxxx (no changes) Nghe An
+84 351 xxxxxx +84 351 xxxxxxx Ha Nam
+84 36 xxxxxx +84 36 xxxxxxx Thai Binh
+84 39 xxxxxx +84 39 xxxxxxx Ha Tinh
+84 4 xxxxxxx +84 4 xxxxxxxx Hanoi (Ha Noi)
+84 500 xxxxxx +84 500 xxxxxxx Dac Lac
+84 501 xxxxxx +84 501 xxxxxxx Dac Nong
+84 510 xxxxxx +84 510 xxxxxxx Quang Nam
+84 511 xxxxxxx (no changes) Da Nang
+84 52 xxxxxx +84 52 xxxxxxx Quang Binh
+84 53 xxxxxx +84 53 xxxxxxx Quang Tri
+84 54 xxxxxx +84 54 xxxxxxx Thua Thien Hue
+84 55 xxxxxx +84 55 xxxxxxx Quang Ngai
+84 56 xxxxxx +84 56 xxxxxxx Binh Dinh
+84 57 xxxxxx +84 57 xxxxxxx Phu Yen
+84 58 xxxxxx +84 58 xxxxxxx Khanh Hoa
+84 59 xxxxxx +84 59 xxxxxxx Gia Lai
+84 60 xxxxxx +84 60 xxxxxxx Kon Tum
+84 61 xxxxxxx (no changes) Dong Nai
+84 62 xxxxxx +84 62 xxxxxxx Binh Thuan
+84 63 xxxxxx +84 63 xxxxxxx Lam Dong
+84 64 xxxxxx +84 64 xxxxxxx Ba Ria Vung Tau
+84 650 xxxxxx +84 650 xxxxxxx Binh Duong
+84 651 xxxxxx +84 651 xxxxxxx Binh Phuoc
+84 66 xxxxxx +84 66 xxxxxxx Tay Ninh
+84 67 xxxxxx +84 67 xxxxxxx Dong Thap
+84 68 xxxxxx +84 68 xxxxxxx Ninh Thuan
+84 69 xxxxx(x) (no changes) National Defense/Home Affairs network
+84 70 xxxxxx +84 70 xxxxxxx Vinh Long
+84 710 xxxxxx +84 710 xxxxxxx Can Tho
+84 711 xxxxxx +84 711 xxxxxxx Hau Giang
+84 72 xxxxxx +84 72 xxxxxxx Long An
+84 73 xxxxxx +84 73 xxxxxxx Tien Giang
+84 74 xxxxxx +84 74 xxxxxxx Tra Vinh
+84 75 xxxxxx +84 75 xxxxxxx Ben Tre
+84 76 xxxxxx +84 76 xxxxxxx An Giang
+84 77 xxxxxxx (no changes) Kien Giang
+84 780 xxxxxx +84 780 xxxxxxx Ca Mau
+84 781 xxxxxx +84 781 xxxxxxx Bac Lieu
+84 79 xxxxxx +84 79 xxxxxxx Soc Trang
+84 8 xxxxxxx +84 8 xxxxxxxx Ho Chi Minh City
+84 80 xxxxx (no changes) Central Post and Telecom Division
+84 90 xxxxxxx (no changes) VNPT Mobifone
+84 91 xxxxxxx (no changes) VNPT Vinaphone
+84 92 xxxxxxx (no changes) HTC (CDMA mobile)
+84 93 xxxxxxx (no changes) VNPT Mobifone (as of 1Â June 2006)
+84 94 xxxxxxx (no changes) VNPT Vinaphone (as of 15Â September 2006)
+84 95 xxxxxxx (no changes) SPT (CDMA mobile)
+84 96 xxxxxxx (no changes) EVN (CDMA mobile)
+84 97 xxxxxxx (no changes) Viettel mobile
+84 98 xxxxxxx (no changes) Viettel mobile
+84 99 xxxxxx (no changes) VSAT
New dialing mode applied to the fixed telephone number in Vietnam (CTM, 3 October 2008)
(News courtesy Sergiu Rosenzweig)
1 October 2006 - subscriber numbers expanded in certain areas
'3' was prepended to 6-digit subscriber numbers in certain regions to form new 7-digit subscriber numbers. This was not a widespread or national renumbering. There was a one month permissive dialling period which ended 1 November 2006.
Old format New format Place
---------- ---------- -----
+84 31 xxxxxx +84 31 3xxxxxx Hai Phong City
+84 38 xxxxxx +84 38 3xxxxxx Nghe An province
+84 61 xxxxxx +84 61 3xxxxxx Dong Nai province
Source: MIC announcement (26 September 2007, via ITU) (News courtesy Sergiu Rosenzweig)
15 September 2006 - new Vinaphone mobile range
Vinaphone mobile numbers were assigned the new number range +84 94 xxxxxxx.
Source: MIC announcement (26 September 2007, via ITU) (News courtesy Sergiu Rosenzweig)
May 2004 - numbering plan
As of May 2004, the following applies in Vietnam:
Subscriber numbers (regardless of area code) belong to carriers according to the following pattern:
Number range Local Carrier
============ =============
2xxxxxx Viettel
4xxxxxx Saigon Postel Telecom (SPT)
5xxxxxx Viet Nam Posts and Telecommunications Corporation (VNPT)
6xxxxxx Viet Nam Posts and Telecommunications Corporation (VNPT)
7xxxxxx Viet Nam Posts and Telecommunications Corporation (VNPT)
8xxxxxx Viet Nam Posts and Telecommunications Corporation (VNPT)
9xxxxxx Viet Nam Posts and Telecommunications Corporation (VNPT)
Mobile area codes are as follows:
Number range Mobile carrier
============ ==============
+84 90 xxxxxxx MobiFon
+84 91 xxxxxxx VinaPhone
+84 95 xxxxxxx S-Fone (new carrier)
1xxx short codes are for home country direct, data, internet, special and premium services. 171 is VOIP short code (Voice Over Internet Protocol).
Source: Viet Nam Posts and Telecommunications Corporation (VNPT) announcement, (27 May 2004, via ITU)..
15 February 2004 - new VinaPhone subscriber number range
+84 91 27xxxxx, +84 91 42xxxxx, +84 91 90xxxxx are new VinaPhone mobile number ranges from 15 February 2004.
1 January 2004 - new MobiFon subscriber number range
+84 90 90xxxxx is a new MobiFon range from 1 January 2004.
1 June 2001 - GSM mobile subscriber number expansion
On 1 June 2001, GSM mobile subscriber numbers on area codes +84 90 (MobiFone) and +84 91 (VinaPhone) were expanded from 6 to 7 digits by prepending the digit '3'.
Sources:
2. VNPT announcement (via ITU, 2001).
10 October 1999 - Hung Yen and Hai Duong area codes change
From 10 October 1999, Hai Duong provincial area code became +84 320 (0320 domestically) and Hung Yen provincial area code became +84 321 (0321 domestically). These replace the area code +84 32 (or 032 domestically) which covered both provinces until that time.
This change was implemented with the installation of an NEAX 61S telephone switch in Hung Yen. The area code changes also reflect the political split of the Hai Hung province into Hai Duong and Hung Yen provinces as of 1 July 1997.
See VNPT press release for details.
12 September 1999 - Binh Duong and Binh Phuoc area codes change
From 12 September 1999, Binh Duong provincial area code became +84 650 (0650 domestically) and Binh Phuoc provincial area code became +84 651 (0651 domestically). These replace the area code +84 65 (or 065 domestically) which covered both provinces until that time.
See VNPT press release for details.
1 April 1999 - Vinh Phuc and Phu Tho area codes change
From 1 April 1999, Vinh Phuc provincial area code became +84 211 (0211 domestically) and Phu Tho provincial area code became +84 210 (0210 domestically). These replace the area code +84 21 (or 021 domestically) which covered both provinces until that time. 6-digit subscriber numbers were not changed.
See VNPT press release for details.
October 1998 - Sufficient advance notice policy for number changes
Telephone subscribers are to be given at least 60 days notice for any numbering changes, according to policy decreed 16 October 1998.
See VNPT press release for details.
29 February 1996: national renumbering
Vietnam's telephone numbers were expanded by 1 digit nationally on 29 February 1996. Subscriber numbers in Hanoi and Ho Chi Minh City were changed from 6 to 7 digits. Elsewhere, subscriber numbers changed from 5 to 6 digits. No other details on the renumbering are known.
Source: VNPT 1996 news summary.
Other Information
Regulator is Ministry of Information and Communications (MIC)
See Vietnam Posts and Telecommunication Corp. site for news and information.
International carrier is Vietname Telecom International (VTI).
Also see numbering document (via ITU).
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