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. | 1,060,096 | 1.13 x 236 | 3 | 111 | |
| Serbia BroadBand-Srpske Kablovske mreze d.o.o. | 564,480 | 236 | 1 | 27 | |
| Edge Technology Plus d.o.o. Beograd | 208,128 | 1.38 x 235 | 1 | 53 | |
| 4 | Akademska mreza Republike Srbije - AMRES | 148,480 | 232 | 1 | 8 |
| 5 | Drustvo za telekomunikacije Orion telekom doo Beograd-Zemun | 138,240 | 1.5 x 233 | 1 | 305 |
| 6 | University of Nis | 131,072 | 0 | 1 | 3 |
| 7 | Sat-Trakt D.O.O. | 103,168 | 1.63 x 235 | 1 | 129 |
| 8 | CETIN Ltd. Belgrade | 78,605 | 232 | 1 | 16 |
| 9 | YUnet International d.o.o. | 69,120 | 232 | 1 | 11 |
| 10 | BeotelNet-ISP d.o.o | 65,536 | 233 | 1 | 17 |
| 11 | JP Posta Srbije Beograd | 48,640 | 0 | 1 | 14 |
| 12 | A1 Srbija d.o.o | 30,720 | 1.25 x 235 | 1 | 20 |
| 13 | Jotel d.o.o. | 29,184 | 0 | 1 | 51 |
| 14 | TRUF d.o.o. | 27,392 | 0 | 1 | 50 |
| 15 | Orion Telekom Tim d.o.o.Beograd | 24,576 | 0 | 6 | 89 |
| 16 | Mainstream doo Beograd | 15,872 | 1.06 x 235 | 2 | 39 |
| 17 | ASTRA TELEKOM DOO BEOGRAD | 14,336 | 0 | 1 | 44 |
| 18 | UNITED GROUP NETWORK INFRASTRUCTURE d.o.o. Beograd | 12,288 | 235 | 1 | 8 |
| 19 | mts D.O.O | 9,216 | 232 | 1 | 3 |
| 20 | Gama Electronics d.o.o. | 8,448 | 0 | 1 | 6 |