FactBook

The information shown below was provided by representatives of the carrier shown. The International Inbound Services Forum does not warrant the accuracy of the information and assumes no liability for errors.
General
CountryUnited States 
CarrierAT&T 
Last edited (yyy-mm-dd)2015-02-24 
Number formats
Outbound Freephone1 800 NXX XXXX, 1 855 NXX XXXX, 1 866 NXX XXXX, 1 877 NXX XXXX, 1 888 NXX XXXX 
Domestic FreephoneSame as above 
International Access Code011 
Service offerIFSUIFN
InboundYes Yes 
DomesticYes No 
Home Country Direct InboundYes Yes 
OutboundYes Yes 
Home Country Direct OutboundYes Yes 
CLI provided on outbound callsNo No 
Outbound simultaneous call limit and defaultNo limit No limit 
Call chargeIFSUIFN
Free or chargeableFree Free 
Remark
Number accessibility within countryIFSUIFN
Accessible from PABXsYes, unless barred Yes, unless barred 
Accessible from HotelsYes, unless barred. Hotel surcharges may apply. Yes, unless barred. Hotel surcharges may apply. 
Accessible from phones with international call barringYes No 
Geographic restrictionsNone None 
Islands/teritories included in dialplanAlaska, Hawaii, Puerto Rico, U.S. Virgin Islands, American Samoa, Guam, CNMI (Saipan) Puerto Rico, U.S. Virgin Islands 
Accessible through other carriers/networks in countryYes Yes, if AT&T dial-around code (10-10-288) precedes UIFN. 
Full country coverage provided by a single carrierYes Yes, if AT&T dial-around code (10-10-288) precedes UIFN. 
Telephone include alpha charactersYes, North American format 
Access from payphonesIFSUIFN
Coins or cards neededNo Not available from payphones 
Payphone
operator
To be
recognized
IFS
access
free /
charged
UIFN
access
free /
charged
HCD
access
free /
charged
All Yes Free No If IFS format, Yes. If UIFN format, No. Free if IFS format. 
Remarks on payphone accessPrivate payphones may charge 
Access from
mobile operators
Number
ranges
IFS
access
free /
charged
UIFN
access
free /
charged
HCD
access
free /
charged
All U.S. operators N/A Yes Airtime No N/A If IFS format, Yes. If UIFN format, No. Airtime 
Remarks on mobile accessibilityRoaming charges apply. International roaming subject to mobile carrier agreements. 
Number accessibility from abroadIFSUIFN
IFS numbersYes for some countries if preceded by IAC N.a.
Domestic freephonenumbersYes for some countries if preceded by IAC N.a.
DTMF Capability
Required for accessNo 
% of payphones with DTMF100% 
100% by when
Number PortabilityIFSUIFN
Domestic to internationalYes All UIFN's portable as required by ITU-T rec. E.169
International to domesticYes 
International between countriesYes 
International between carriersYes 
Domestic or international between carriers within countryYes 
Single SOF portability supportedNo. If porting to/from AT&T as originating carrier, must include U.S. domestic porting form as well as international SOF.  Yes 
Number for callers to report trouble+1 314 289 2718 + 1 314 289 2718 
Directory serviceIFSUIFN
PrintedNo No 
Operator assistedYes. 1-800-555-1212 Yes. 1-800-555-1212 
InternetYes. www.tollfreeda.com Yes. www.tollfreeda.com 
Aging period for disconnected numbers120 days N.a.
Service provisioning leadtime5-10 working days 5-10 working days 
Related servicesInboundOutbound
Offers international shared costNo No 
Offers international premium rateNo No 
Does agree to use transit for IFS/HCDNo No 
Is willing to act as transit carrier for IFS/HCDNo 
Offers wholesale IFSNo 
Internet links
Carrier homepagewww.att.com 
For additional information 
Regulatorwww.fcc.gov 
Public holiday information