The Corporate Numbering Range (Convention B5) - National numbers starting 55

SABCD/DEStatusDateCommunications ProviderNotesUseChange
551100AllocatedNPlusOne Limited10 Digit Numbers11/2004
551101-39Free10 Digit Numbers
551140AllocatedBT10 Digit Numbers03/2004
551141&42ReservedWithheld10 Digit Numbers
551143AllocatedBT10 Digit Numbers05/2001
551144AllocatedBT10 Digit Numbers11/2000
551145-49AllocatedBT10 Digit Numbers03/2004
551150-54Free10 Digit Numbers
551155AllocatedTeamphone.com Limited10 Digit Numbers06/2006
551156-99Free10 Digit Numbers
551600-49Free10 Digit Numbers
551650AllocatedBT10 Digit Numbers02/2002
551651-54ReservedWithheld10 Digit Numbers
551655AllocatedBT10 Digit Numbers02/2002
551656-59ReservedWithheld10 Digit Numbers
551660AllocatedBT10 Digit Numbers02/2002
551661-64ReservedWithheld10 Digit Numbers
551665AllocatedBT10 Digit Numbers02/2002
551666&67ReservedWithheld10 Digit Numbers
551668-99Free10 Digit Numbers
555500AllocatedFleXtel Limited10 Digit Numbers10/2004
555501-07Free10 Digit Numbers
555508AllocatedMCI WorldCom Ltd10 Digit Numbers12/2004
555509Free10 Digit Numbers
555510AllocatedFleXtel Limited10 Digit Numbers10/2004
555511-49Free10 Digit Numbers
555550AllocatedNationwide Telephone Assistance Ltd10 Digit Numbers09/2006
555551-54Free10 Digit Numbers
555555AllocatedFleXtel Limited10 Digit Numbers07/2004
555556-65Free10 Digit Numbers
555566AllocatedSyntec UK Ltd10 Digit Numbers12/2004
555567-69Free10 Digit Numbers
555570-83ReservedWithheld10 Digit Numbers
555584AllocatedNetwork Rail Infrastructure Limited10 Digit Numbers01/2005
555585ReservedWithheld10 Digit Numbers
555586AllocatedNetwork Rail Infrastructure Limited10 Digit Numbers01/2005
555587ReservedWithheld10 Digit Numbers
555588&89AllocatedNetwork Rail Infrastructure Limited10 Digit Numbers01/2005
555590-92ReservedWithheld10 Digit Numbers
555593AllocatedNetwork Rail Infrastructure Limited10 Digit Numbers01/2005
555594-99ReservedWithheld10 Digit Numbers
558800-29Free10 Digit Numbers
558830-39AllocatedHutchison 3G UK Ltd10 Digit Numbers06/2002
558840-79Free10 Digit Numbers
558880AllocatedFleXtel Limited10 Digit Numbers10/2004
558881-99Free10 Digit Numbers

Keys to Status field

Allocated
Numbering capacity designated to the listed Operator.
Free
Numbering capacity which is not allocated at the time of publication of the list.
Reserved
Numbering Capacity can be reserved in advance of its intended use. When this capacity is required to be put into service, the identity of the Operator is disclosed