List of the top 20 organizations with the largest IP allocations in Serbia
| Rank | Name | IPv4 addresses | IPv6 /64 networks | AS numbers | Prefixes |
|---|---|---|---|---|---|
| TELEKOM SRBIJA a.d. | 1,048,064 | 1.13 x 236 | 2 | 86 | |
| Serbia BroadBand-Srpske Kablovske mreze d.o.o. | 875,264 | 236 | 1 | 41 | |
| Edge Technology Plus d.o.o. Beograd | 207,616 | 1.38 x 235 | 1 | 50 | |
| 4 | Drustvo za telekomunikacije Orion telekom doo Beograd-Zemun | 157,440 | 1.5 x 233 | 1 | 291 |
| 5 | Akademska mreza Republike Srbije - AMRES | 148,480 | 232 | 1 | 8 |
| 6 | University of Nis | 131,072 | 0 | 1 | 3 |
| 7 | CETIN Ltd. Belgrade | 107,285 | 232 | 1 | 26 |
| 8 | Sat-Trakt D.O.O. | 104,960 | 1.63 x 235 | 1 | 130 |
| 9 | BeotelNet-ISP d.o.o | 91,648 | 233 | 2 | 31 |
| 10 | YUnet International d.o.o. | 69,120 | 232 | 1 | 11 |
| 11 | JP Posta Srbije Beograd | 48,640 | 0 | 1 | 14 |
| 12 | Orion Telekom Tim d.o.o.Beograd | 33,280 | 0 | 6 | 119 |
| 13 | Jotel d.o.o. | 29,184 | 0 | 1 | 51 |
| 14 | A1 Srbija d.o.o | 27,648 | 1.25 x 235 | 1 | 18 |
| 15 | Mainstream doo Beograd | 15,616 | 1.06 x 235 | 2 | 38 |
| 16 | TRUF d.o.o. | 15,104 | 0 | 1 | 48 |
| 17 | ASTRA TELEKOM DOO BEOGRAD | 14,848 | 0 | 1 | 46 |
| 18 | UNITED GROUP NETWORK INFRASTRUCTURE d.o.o. Beograd | 11,264 | 235 | 1 | 7 |
| 19 | mts D.O.O | 9,216 | 232 | 1 | 3 |
| 20 | Gama Electronics d.o.o. | 8,448 | 0 | 1 | 6 |