A method for facilitating roaming management of a host network, the host network having a first set of subscribers, an associated gateway and a roaming arrangement with a non-host network having a second set of subscribers, the method comprising: obtaining, via the gateway, signaling messages of one or more roamers, each roamer being a subscriber of the first set of subscribers or the second set of subscribers; and determining, via the gateway, the host network's roaming arrangement with non-host network, based on an analysis of one or more additional signaling messages from the obtained signaling messages, wherein determining the roaming arrangement comprises determining an inbound roaming market share of the host network, wherein determining the host network's inbound roaming market share comprises: calculating, via the gateway, a number of samples necessary for determining the inbound roaming market share; selecting, via the gateway, the roamers of the one or more roamers that have earlier roamed in the host network, wherein a number of the selected roamers is equal to the calculated number of samples; obtaining, via the gateway, current locations of the selected roamers from the obtained signaling messages, wherein obtaining the current location of the selected roamers further comprises: issuing, via the gateway, at least one of: a routing request for short message, a routing request for short message with General Packet Radio Services (GPRS) support indication, an interrogation message, a routing request message and a routing request message for GPRS to a Home Location Register associated with the selected roamers' home network, wherein the selected roamers' home network is the non-host network; determining, via the gateway, a distribution of the selected roamers across different operators within the host network's country, wherein the determination is based on the obtained locations; and issuing, via the gateway, a blank Short Message Service to the selected roamers when the obtained location of the selected roamers indicates the roamers' home network location. obtaining, via the gateway, signaling messages of one or more roamers, each roamer being a subscriber of the first set of subscribers or the second set of subscribers; and determining, via the gateway, the host network's roaming arrangement with non-host network, based on an analysis of one or more additional signaling messages from the obtained signaling messages, wherein determining the roaming arrangement comprises determining an inbound roaming market share of the host network, wherein determining the host network's inbound roaming market share comprises: calculating, via the gateway, a number of samples necessary for determining the inbound roaming market share; selecting, via the gateway, the roamers of the one or more roamers that have earlier roamed in the host network, wherein a number of the selected roamers is equal to the calculated number of samples; obtaining, via the gateway, current locations of the selected roamers from the obtained signaling messages, wherein obtaining the current location of the selected roamers further comprises: issuing, via the gateway, at least one of: a routing request for short message, a routing request for short message with General Packet Radio Services (GPRS) support indication, an interrogation message, a routing request message and a routing request message for GPRS to a Home Location Register associated with the selected roamers' home network, wherein the selected roamers' home network is the non-host network; determining, via the gateway, a distribution of the selected roamers across different operators within the host network's country, wherein the determination is based on the obtained locations; and issuing, via the gateway, a blank Short Message Service to the selected roamers when the obtained location of the selected roamers indicates the roamers' home network location. calculating, via the gateway, a number of samples necessary for determining the inbound roaming market share; selecting, via the gateway, the roamers of the one or more roamers that have earlier roamed in the host network, wherein a number of the selected roamers is equal to the calculated number of samples; obtaining, via the gateway, current locations of the selected roamers from the obtained signaling messages, wherein obtaining the current location of the selected roamers further comprises: issuing, via the gateway, at least one of: a routing request for short message, a routing request for short message with General Packet Radio Services (GPRS) support indication, an interrogation message, a routing request message and a routing request message for GPRS to a Home Location Register associated with the selected roamers' home network, wherein the selected roamers' home network is the non-host network; issuing, via the gateway, at least one of: a routing request for short message, a routing request for short message with General Packet Radio Services (GPRS) support indication, an interrogation message, a routing request message and a routing request message for GPRS to a Home Location Register associated with the selected roamers' home network, wherein the selected roamers' home network is the non-host network; determining, via the gateway, a distribution of the selected roamers across different operators within the host network's country, wherein the determination is based on the obtained locations; and issuing, via the gateway, a blank Short Message Service to the selected roamers when the obtained location of the selected roamers indicates the roamers' home network location.