| Code | Carrier | Country |
|---|---|---|
| 13001 | Torc Telecom | IRL |
| 13002 | Valuetel | IRL |
| 13006 | Smart Telecom Limited | IRL |
| 13007 | TCSI | IRL |
| 13011 | Interoute | IRL |
| 13012 | Smart Telecom Limited | IRL |
| 13021 | Carrier 1 AG | IRL |
| 13031 | Valuetel | IRL |
| 13033 | Primetec (UK) Limited | IRL |
| 13034 | Primetec (UK) Limited | IRL |
| 13045 | IDT Europe BV | IRL |
| 13087 | Eircell | IRL |
| 13088 | Eircell | IRL |
| 13101 | PostGem | IRL |
| 13111 | S.M.Communications | IRL |
| 13112 | Interoute | IRL |
| 13113 | Torc Telecom | IRL |
| 13114 | PostGem | IRL |
| 13118 | Conduit Europe | IRL |
| 13121 | Budget Telecom | IRL |
| 13122 | S.M.Communications | IRL |
| 13123 | Switchcom | IRL |
| 13124 | Switchcom | IRL |
| 13127 | Swiftcall | IRL |
| 13131 | Cable & Wireless | IRL |
| 13132 | Ocean | IRL |
| 13133 | Esat Digifone | IRL |
| 13141 | Ocean | IRL |
| 13147 | MCI World Com | IRL |
| 13148 | Swiftcall | IRL |
| 13156 | Global One | IRL |
| 13157 | Global One | IRL |
| 13166 | Colt | IRL |
| 13167 | Colt | IRL |
| 13177 | Primus Telecom Limited | IRL |
| 13202 | Tele 2 | IRL |
| 13211 | Chorus | IRL |
| 13212 | Chorus | IRL |
| 13225 | Tele 2 | IRL |
| 13228 | Viatel (I) | IRL |
| 13232 | NTL | IRL |
| 13258 | Hibercall | IRL |
| 13266 | Concert Global Networks Limited | IRL |
| 13282 | TNS | IRL |
| 13311 | Budget Telecom | IRL |
| 13313 | Conduit Europe | IRL |
| 13321 | Esat Telecom | IRL |
| 13331 | Eircom | IRL |
| 13333 | Hibercall | IRL |
| 13334 | Carrier 1 AG | IRL |
| 13369 | Nevada Tele.com | IRL |
| 13425 | TNS | IRL |
| 13444 | Esat Digifone | IRL |
| 13485 | GTS Ireland | IRL |
| 13486 | Timas / Galileo | IRL |
| 13513 | Nevada Tele.com | IRL |
| 13555 | MCI World Com | IRL |
| 13558 | Viatel (I) | IRL |
| 13579 | NTL | IRL |
| 13636 | Vartec | IRL |
| 13638 | Vartec | IRL |
| 13663 | Access Communications | IRL |
| 13666 | Eircom | IRL |
| 13678 | IDT Europe BV | IRL |
| 13684 | Startec Global Com. | IRL |
| 13728 | TCSI | IRL |
| 13777 | Access Communications | IRL |
| 13784 | Startec Global Com. | IRL |
| 13789 | Esat Telecom | IRL |
| 13793 | GTS Ireland | IRL |
| 13813 | Timas / Galileo | IRL |
| 13888 | Cable & Wireless | IRL |
| 13900 | Eircom | IRL |
| 13901 | MCI World Com | IRL |
| 13902 | Nevada Tele.com | IRL |
| 13903 | Interoute | IRL |
| 13904 | TNS | IRL |
| 13905 | Esat Telecom | IRL |
| 13906 | Ocean | IRL |
| 13907 | GTS Ireland | IRL |
| 13908 | Budget Telecom | IRL |
| 13909 | Swiftcall | IRL |
| 13910 | Hibercall | IRL |
| 13911 | TCSI | IRL |
| 13912 | Chorus | IRL |
| 13913 | NTL | IRL |
| 13914 | Cable & Wireless | IRL |
| 13915 | Access Communications | IRL |
| 13916 | Unisource | IRL |
| 13917 | Switchcom | IRL |
| 13918 | Conduit Europe | IRL |
| 13919 | Colt | IRL |