IPv4 R&E Routing Table Report 21:10 GMT Wed 08 Oct, 2025 IPv4 BGP Table (Global) as seen at AARNET (Brisbane). Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/AARNET/ Analysis Summary ---------------- BGP routing table entries examined: 1006521 Prefixes after maximum aggregation (per Origin AS): 390627 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 496406 Number of IPv4 prefixes with a valid ROA: 576342 Number of IPv4 prefixes with an invalid ROA: 146 Number of IPv4 prefixes with no ROA: 430033 Total ASes present in the Internet Routing Table: 77387 Prefixes per ASN: 13.01 Origin-only ASes present in the Internet Routing Table: 66277 Origin ASes announcing only one prefix: 27077 Transit ASes present in the Internet Routing Table: 11110 Transit-only ASes present in the Internet Routing Table: 562 Paths with bogon ASNs present in the IPv4 Routing Table: 5 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 52 Max AS path prepend of ASN ( 59958) 48 Prefixes from unregistered ASNs in the Routing Table: 1044 Number of instances of unregistered ASNs: 1073 Number of 32-bit ASNs allocated by the RIRs: 47637 Number of 32-bit ASNs visible in the Routing Table: 39091 Prefixes from 32-bit ASNs in the Routing Table: 211696 Number of bogon 32-bit ASNs visible in the Routing Table: 68 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 477 Number of addresses announced to Internet: 3110793984 Equivalent to 185 /8s, 106 /16s and 243 /24s Percentage of available address space announced: 84.0 Percentage of allocated address space announced: 84.0 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.6 Total number of prefixes smaller than registry allocations: 328167 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 268634 Total APNIC prefixes after maximum aggregation: 79688 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 258524 Unique aggregates announced from the APNIC address blocks: 105808 APNIC Region origin ASes present in the Internet Routing Table: 14822 APNIC Prefixes per ASN: 17.44 APNIC Region origin ASes announcing only one prefix: 4528 APNIC Region transit ASes present in the Internet Routing Table: 1982 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10377 Number of APNIC addresses announced to Internet: 750952192 Equivalent to 44 /8s, 194 /16s and 159 /24s APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319, 58368-59391, 63488-64098, 64297-64395, 131072-155961 APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8, 49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8, 106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8, 163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8, 223/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 296101 Total ARIN prefixes after maximum aggregation: 134411 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 297757 Unique aggregates announced from the ARIN address blocks: 143521 ARIN Region origin ASes present in the Internet Routing Table: 19329 ARIN Prefixes per ASN: 15.40 ARIN Region origin ASes announcing only one prefix: 7099 ARIN Region transit ASes present in the Internet Routing Table: 1982 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5355 Number of ARIN addresses announced to Internet: 1352400384 Equivalent to 80 /8s, 155 /16s and 254 /24s ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647, 29696-30719, 31744-33791 35840-36863, 39936-40959, 46080-47103 53248-55295, 62464-63487, 64198-64296, 393216-402332 ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8, 12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8, 20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8, 29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8, 54/8, 55/8, 56/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8, 174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 280598 Total RIPE prefixes after maximum aggregation: 138658 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 280113 Unique aggregates announced from the RIPE address blocks: 180908 RIPE Region origin ASes present in the Internet Routing Table: 29067 RIPE Prefixes per ASN: 9.64 RIPE Region origin ASes announcing only one prefix: 12079 RIPE Region transit ASes present in the Internet Routing Table: 4019 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 52 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12752 Number of RIPE addresses announced to Internet: 732641792 Equivalent to 43 /8s, 171 /16s and 58 /24s RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-35839, 38912-39935 40960-45055, 47104-52223, 56320-58367 59392-61439, 61952-62463, 64396-64495 196608-216475 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 53/8, 57/8, 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8, 141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 125165 Total LACNIC prefixes after maximum aggregation: 30315 LACNIC Deaggregation factor: 4.13 Prefixes being announced from the LACNIC address blocks: 121341 Unique aggregates announced from the LACNIC address blocks: 49440 LACNIC Region origin ASes present in the Internet Routing Table: 11300 LACNIC Prefixes per ASN: 10.74 LACNIC Region origin ASes announcing only one prefix: 2656 LACNIC Region transit ASes present in the Internet Routing Table: 2542 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 38 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9277 Number of LACNIC addresses announced to Internet: 170715904 Equivalent to 10 /8s, 44 /16s and 235 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + ERX transfers LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8, 191/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 34979 Total AfriNIC prefixes after maximum aggregation: 6863 AfriNIC Deaggregation factor: 5.10 Prefixes being announced from the AfriNIC address blocks: 48308 Unique aggregates announced from the AfriNIC address blocks: 16307 AfriNIC Region origin ASes present in the Internet Routing Table: 1967 AfriNIC Prefixes per ASN: 24.56 AfriNIC Region origin ASes announcing only one prefix: 715 AfriNIC Region transit ASes present in the Internet Routing Table: 380 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 42 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1330 Number of AfriNIC addresses announced to Internet: 103827456 Equivalent to 6 /8s, 48 /16s and 72 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 9808 13670 8730 116 CHINAMOBILE-CN China Mobile Communication 7545 6184 835 605 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4570 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4470 536 312 BBIL-AP BHARTI Airtel Ltd., IN 7552 3948 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3710 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3299 1868 99 VNPT-AS-VN VNPT Corp, VN 56046 3116 827 180 CMNET-JIANGSU-AP China Mobile communicati 24560 2919 861 508 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 9304 2443 510 1582 HUTCHISON-AS-AP HGC Global Communications Complete listing at https://bgp.nsrc.org/REN/AARNET/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14309 40993 5385 AMAZON-02, US 11492 4754 321 796 CABLEONE, US 22773 4019 3067 363 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3683 1320 82 SHAW, CA 396982 3272 4824 464 GOOGLE-CLOUD-PLATFORM, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3106 241 1729 USDA-1, US 174 3075 8767 805 COGENT-174, US 16625 3045 1302 2214 AKAMAI-AS, US Complete listing at https://bgp.nsrc.org/REN/AARNET/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7422 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 20940 4048 3395 126 AKAMAI-ASN1, NL 9009 3946 371 2232 M247, RO 12389 3137 2315 867 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2479 176 1796 CDNEXT, GB 34984 2415 363 576 TELLCOM-AS, TR 203020 2036 223 1001 HOSTROYALE, IN 8452 1654 1852 14 TE-AS TE-AS, EG 13188 1607 100 27 TRIOLAN, UA Complete listing at https://bgp.nsrc.org/REN/AARNET/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12363 3282 574 UNINET, MX 10620 3478 468 1088 Telmex Colombia S.A., CO 13999 2543 511 346 Mega Cable, S.A. de C.V., MX 11830 1988 369 64 Instituto Costarricense de Electricidad y 28573 1369 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1354 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1238 278 32 Techtel LMDS Comunicaciones Interactivas 6147 1179 371 23 Telefonica del Peru S.A.A., PE 22884 1070 71 349 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1009 2486 56 TIM SA, BR Complete listing at https://bgp.nsrc.org/REN/AARNET/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1765 600 27 RAYA-AS, EG 36992 1512 1498 385 ETISALAT-MISR, EG 36903 1250 554 97 MT-MPLS, MA 24863 1249 389 20 LINKdotNET-AS, EG 29571 1190 102 53 ORANGE-COTE-IVOIRE, CI 37069 1085 1096 13 MOBINIL, EG 36935 958 523 47 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 572 82 3 KENET-AS, KE 15399 549 57 59 WANANCHI-, KE Complete listing at https://bgp.nsrc.org/REN/AARNET/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14309 40993 5385 AMAZON-02, US 9808 13670 8730 116 CHINAMOBILE-CN China Mobile Communication 8151 12363 3282 574 UNINET, MX 12479 7422 1711 149 UNI2-AS, ES 7545 6184 835 605 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 298 66 ALJAWWALSTC-AS, SA 11492 4754 321 796 CABLEONE, US 18403 4570 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4470 536 312 BBIL-AP BHARTI Airtel Ltd., IN 20940 4048 3395 126 AKAMAI-ASN1, NL Complete listing at https://bgp.nsrc.org/REN/AARNET/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 13670 13554 CHINAMOBILE-CN China Mobile Communications Grou 8151 12363 11789 UNINET, MX 12479 7422 7273 UNI2-AS, ES 7545 6184 5579 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4767 ALJAWWALSTC-AS, SA 18403 4570 4545 FPT-AS-AP FPT Telecom Company, VN 9498 4470 4158 BBIL-AP BHARTI Airtel Ltd., IN 11492 4754 3958 CABLEONE, US 20940 4048 3922 AKAMAI-ASN1, NL 7552 3948 3920 VIETEL-AS-AP Viettel Group, VN Complete listing at https://bgp.nsrc.org/REN/AARNET/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 210537 UNALLOCATED 5.83.148.0/24 215828 TMW-GLOBAL-NETWORKS TMW 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 396146 UNALLOCATED 8.21.227.0/24 3356 LEVEL3, US 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 54338 UNALLOCATED 8.33.241.0/24 3356 LEVEL3, US 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/AARNET/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 14.192.20.0/22 Origin: 26658 HENGTONG-IDC-LLC, US 14.192.20.0/22 Transit: 21859 ZEN-ECN, US 23.135.216.0/24 Origin: 400565 RESERVED, ZZ 23.135.216.0/24 Transit: 3356 LEVEL3, US 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS, US Complete listing at https://bgp.nsrc.org/REN/AARNET/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- !!Default route being announced!! /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:16 /9:14 /10:41 /11:93 /12:300 /13:583 /14:1203 /15:2128 /16:13783 /17:8217 /18:13496 /19:24681 /20:44384 /21:51977 /22:112641 /23:104360 /24:628603 /25:0 /26:0 /27:0 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 6591 12363 UNINET, MX 12479 6386 7422 UNI2-AS, ES 11492 3567 4754 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3472 3683 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2529 4019 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2401 14309 AMAZON-02, US 30036 2294 2634 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2212 3478 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/AARNET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2427 2:1562 3:942 4:10 5:4838 6:169 7:6 8:1531 9:6 11:172 12:1242 13:559 14:2641 15:401 16:304 17:386 18:905 20:574 21:4 22:188 23:7958 24:2696 25:2 27:2810 29:19 31:3351 32:31 33:1 34:81 35:267 36:4443 37:4546 38:9519 39:1089 40:468 41:4297 42:2048 43:2720 44:397 45:18883 46:5208 47:343 49:2026 50:2056 51:595 52:1591 54:359 55:1092 56:11 57:284 58:2276 59:1307 60:1188 61:2918 62:3089 63:1768 64:5679 65:2132 66:5001 67:3129 68:1102 69:3952 70:1044 71:642 72:2984 74:2841 75:1501 76:602 77:2769 78:1916 79:1750 80:2248 81:2123 82:3467 83:1473 84:1991 85:3526 86:1097 87:2144 88:1358 89:4503 90:814 91:8393 92:2806 93:2982 94:4162 95:4511 96:1494 97:312 98:952 99:741 100:71 101:1220 102:4154 103:32270 104:5458 105:787 106:895 107:2667 108:1206 109:4230 110:2247 111:3749 112:2651 113:1854 114:1982 115:2340 116:2074 117:2943 118:3055 119:1979 120:2265 121:1358 122:2811 123:2268 124:1657 125:2883 126:125 128:1608 129:963 130:1340 131:2158 132:791 133:462 134:1612 135:364 136:1490 137:1317 138:2824 139:1603 140:1638 141:1540 142:2060 143:2079 144:1272 145:628 146:2185 147:2132 148:2749 149:2911 150:1269 151:2581 152:2172 153:640 154:7373 155:2092 156:3276 157:2000 158:1434 159:2603 160:3630 161:1996 162:3956 163:2292 164:1950 165:2556 166:1564 167:2106 168:3836 169:782 170:5362 171:1025 172:4474 173:3413 174:908 175:1346 176:3806 177:4768 178:4270 179:2278 180:2608 181:4251 182:3726 183:2537 184:2075 185:21676 186:5377 187:4703 188:4378 189:4382 190:9675 191:1549 192:11401 193:9476 194:7795 195:5584 196:3284 197:3243 198:6237 199:8776 200:8201 201:6350 202:10476 203:10598 204:4602 205:3694 206:4446 207:3716 208:4283 209:5367 210:4772 211:2685 212:4817 213:3900 214:1041 215:52 216:6935 217:3353 218:1567 219:394 220:2186 221:1236 222:753 223:3018 End of report