Does my carrier support RCS Business Messaging on iOS yet?

aka. cingular, AT&T M-Cell

ATT_NR_US 71.5.25 (70.0)

aka. cingular, AT&T M-Cell

ATT_US 71.5.27 (70.0)

Dish_MVNO_US 71.5.15 (70.0)

Dish_US 71.5.17 (70.0)

ATT_CC_US 71.5.22 (70.0)

TMobile_Comcast_US 71.5.6 (70.0.1)

ATT_aio_NR_US 71.5.25 (70.0)

ATT_aio_US 71.5.24 (70.0)

aka. AT&T, cingular, AT&T M-Cell

ATT_FirstNet_US 71.5.25 (70.0)

TMobile_MetroPCS_US 71.5.17 (70.0)

NexTech_LTE_US 71.5.19 (70.0)

ATT_Puretalk_US 71.5.21 (70.0)

ATT_RedPocket_US 71.5.25 (70.0)

Verizon_Charter_LTE_US 71.5.24 (70.0)

TMobile_Charter_US 71.5.3 (70.0)

TMobile_US 71.5.23 (70.0)

TMobile_TFW_Simple_US 71.5.17 (70.0)

FamilyMobile_US 71.5.17 (70.0)

TMobile_UltraMint_US 71.5.18 (70.0)

USCellular_LTE_US 71.5.21 (70.0)

aka. Roaming, Extender, Extended

Verizon_LTE_US 71.5.32 (70.0)

aka. Roaming, Extender, Extended

Verizon_TFW_LTE_US 71.5.20 (70.0)

aka. Verizon, Roaming, Extender, Extended

Verizon_Response_LTE_US 71.5.20 (70.0)

aka. Roaming, Extender, Extended

Verizon_Core_Visible_LTE_US 71.5.24 (70.0)

Verizon_Comcast_LTE_US 71.5.28 (70.1)

AppWire_LTE_US 71.5.19 (70.1)

aka. Republic

ATT_Dish_MVNO_US 71.5.22

CellularSouth_LTE_US 71.5.17

TMobile_MVNO_US 71.5.16

ATT_MVNO_US 71.5.22

CellcomWI_LTE_US 71.5.18

aka. Roaming, Extender, Extended

Verizon_Cox_LTE_US 71.5.30

StrataNetwork_LTE_US 71.5.20

Bell_ca 71.5.13 (70.0)

Rogers_chatr_ca 71.5.14 (70.0)

FreedomMobile_ca 71.5.13 (70.0)

Telus_Koodo_ca 71.5.14 (70.0)

Bell_Lucky_ca 71.5.15 (70.0)

aka. SaskTel

Sasktel_Lum_ca 71.5.13 (70.0)

Telus_PublicMobile_ca 71.5.14 (70.0)

Sasktel_ca 71.5.14 (70.0)

Telus_ca 71.5.16 (70.0)

Bell_Virgin_ca 71.5.14 (70.0)

Fido_ca 71.5.13

Rogers_ca 71.5.20

Tbaytel_ca 71.5.13

Videotron_ca 71.5.12

aka. BT

BT_Consumer_uk 71.5.13 (70.0)

aka. BT

BT_Business_uk 71.5.16 (70.0)

Orange_uk 71.5.14 (70.0)

TMobile_uk 71.5.16 (70.0)

O2_Giffgaff_UK 71.5.11 (70.0)

aka. O2-UK

O2_Prepaid_UK 71.5.11 (70.0)

aka. O2-UK, Sky

O2_UK 71.5.15 (70.0)

O2_Tesco_UK 71.5.12 (70.0)

aka. 3

Hutchison_uk 71.5.11 (70.0)

aka. BT OnePhone UK

BT_OnePhone_uk 71.5.13

KDDI_BIGLOBE_LTE_only_jp 71.5.14 (70.0)

KDDI_JCOM_LTE_only_jp 71.5.16 (70.0)

aka. au

KDDI_NR_jp 71.5.23 (70.0)

aka. au, povo

KDDI_LTE_only_jp 71.5.21 (70.0)

KDDI_Povo_NR_jp 71.5.17 (70.0)

KDDI_UQ_LTE_only_jp 71.5.17 (70.0)

KDDI_UQ_NR_jp 71.5.20 (70.0)

aka. SoftBank, LINEMO

Softbank_jp 71.5.16

aka. Y!mobile

Softbank_YMobile_jp 71.5.16

Yoigo_Masmovil_es 71.5.12 (70.0)

Telefonica_es 71.5.14 (70.0)

aka. Orange

Orange_es 71.5.11 (70.1)

Yoigo_Pepephone_es 71.5.11 (70.0)

aka. vodafone ES

Vodafone_es 71.5.11 (70.0)

Yoigo_es 71.5.11 (70.0)

1and1_de 71.5.11 (70.1)

EPlus_de 71.5.16 (70.0)

O2_Germany 71.5.16 (70.0)

TMobile_Germany 71.5.15 (70.1)

Vodafone_de 71.5.13 (70.0)

Mobistar_be 71.5.13 (70.0)

BASE_be 71.5.14 (70.1)

Proximus_be 71.5.13 (70.1)

Telenet_be 71.5.14 (70.1)

aka. Bouygues, La Poste Mobile

Bouygues_fr 71.5.17 (70.0)

Free_fr 71.5.18 (70.0)

aka. Orange F

Orange_France 71.5.15 (70.0)

aka. Syma, Prixtel, Coriolis

SFR_fr 71.5.18 (70.0)

ChinaTelecom_USIM_cn 71.5.23 (70.0)

CMCC_cn 71.5.27 (70.0)

Unicom_cn 71.5.25 (70.0)

KTF_kr 71.5.17 (70.0)

LGU_kr 71.5.16 (70.0)

aka. SKT

SKT_kr 71.5.13 (70.0)

aka. VIVO

TIM_br 71.5.14 (70.1)

vivo_br 71.5.13 (70.0)

TMobile_at 71.5.15 (70.1)

TMobile_cz 71.5.13 (70.1)

TMobile_gr 71.5.11 (70.0)

TMobile_hu 71.5.15 (70.0)

RelianceJio_in 71.5.32 (70.0)

SingTel_sg 71.5.17 (70.0)

TMobile_sk 71.5.12 (70.1)