Proactive Traffic Rules

Proactive Traffic Rules are a great way to protect your Vonage account against abuse. We recommend that you review and set up these rules in advance.

Vonage has applied a default set of rules blocking certain high-risk destination countries, which are listed below. You can use "allow" rules to override these "block" rules.

Fraud Defender Alerts screen

Here are some rules you can set:

  • Create "block" rules based on country codes or phone number prefixes, e.g., +44 (UK) or +447 (UK Mobile).
  • "Block" or "allow" rules may be created for individual phone numbers. You can block a single mobile number, for example +447970123456, or a smaller range, such as the network prefix 447970.
  • "Block" and "allow" rules may be layered. Rules that match a larger set take priority, and where there is a tie, "allow" rules take precedence.

Here is an example with number 1 being most prioritized:

  1. Block 447970123456 (apart from this specific number, which must be blocked)
  2. Block 44 (the UK)
  3. Allow 447 (except UK Mobile numbers, which are allowed)

You may view all captured traffic from the alerts section.

Default Block Rules

Below is a table of the high-risk destination countries that are blocked for voice by default. To override these rules, add an "allow" rule using the relevant country prefix.

Country CodeCountryCountry Prefix
AFAfghanistan93
AGAntigua / Barbuda1268
AIAnguilla1264
ALAlbania355
AMArmenia374
AOAngola244
AWAruba297
BBBarbados1246
BFBurkina Faso226
BIBurundi257
BQBonaire, Sint Eustatius and Saba599
BZBelize501
CDCongo, Dem. Rep. of (former Zaire)243
CFCentral African Republic236
CGCongo242
CICôte d'Ivoire (Ivory Coast)225
CMCameroon237
DJDjibouti253
DMDominica1767
DZAlgeria213
GAGabonese Republic241
GDGrenada1473
GHGhana233
GMGambia220
GNGuinea224
GQEquatorial Guinea240
GWGuinea-Bissau245
GYGuyana592
HTHaiti509
IQIraq964
JMJamaica1876
KMComoros269
KNSt. Kitts/Nevis1869
KYCayman Islands1345
LCSt. Lucia1758
LRLiberia231
MCMonaco377
MEMontenegro382
MGMadagascar261
MKMacedonia (Former Yugoslav Rep of.)389
MLMali Republic223
MRMauritania222
MSMontserrat1664
MVMaldives960
MWMalawi265
MZMozambique258
NENiger227
PGPapua New Guinea675
PSPalestinian Settlements970
PWPalau680
SBSolomon Islands677
SCSeychelles Republic248
SLSierra Leone232
SNSenegal221
SOSomali Democratic Republic252
SSRepublic of South Sudan211
STSão Tomé and Principe239
SVEl Salvador503
SXSint Maarten (Dutch Part)721
TCTurks and Caicos Islands1649
TDChad235
TGTogolese Republic228
TJTajikistan992
TLTimor-Leste670
TNTunisia216
TOTonga Islands676
VCSt. Vincent & Grenadines1784
VGBritish Virgin Islands1284
VUVanuatu678
WSSamoa685
ZMZambia260
ZWZimbabwe263