IPv4 R&E Routing Table Report 21:10 GMT Thu 16 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: 1010436 Prefixes after maximum aggregation (per Origin AS): 391766 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 497810 Number of IPv4 prefixes with a valid ROA: 580690 Number of IPv4 prefixes with an invalid ROA: 135 Number of IPv4 prefixes with no ROA: 429611 Total ASes present in the Internet Routing Table: 77443 Prefixes per ASN: 13.05 Origin-only ASes present in the Internet Routing Table: 66320 Origin ASes announcing only one prefix: 27115 Transit ASes present in the Internet Routing Table: 11123 Transit-only ASes present in the Internet Routing Table: 563 Paths with bogon ASNs present in the IPv4 Routing Table: 45 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: 980 Number of instances of unregistered ASNs: 1046 Number of 32-bit ASNs allocated by the RIRs: 47721 Number of 32-bit ASNs visible in the Routing Table: 39154 Prefixes from 32-bit ASNs in the Routing Table: 213233 Number of bogon 32-bit ASNs visible in the Routing Table: 148 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 447 Number of addresses announced to Internet: 3111900416 Equivalent to 185 /8s, 123 /16s and 213 /24s Percentage of available address space announced: 84.1 Percentage of allocated address space announced: 84.1 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: 329838 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 269961 Total APNIC prefixes after maximum aggregation: 80153 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 259580 Unique aggregates announced from the APNIC address blocks: 105939 APNIC Region origin ASes present in the Internet Routing Table: 14838 APNIC Prefixes per ASN: 17.49 APNIC Region origin ASes announcing only one prefix: 4524 APNIC Region transit ASes present in the Internet Routing Table: 1977 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: 10394 Number of APNIC addresses announced to Internet: 751507456 Equivalent to 44 /8s, 203 /16s and 24 /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: 299111 Total ARIN prefixes after maximum aggregation: 134667 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 300105 Unique aggregates announced from the ARIN address blocks: 144445 ARIN Region origin ASes present in the Internet Routing Table: 19345 ARIN Prefixes per ASN: 15.51 ARIN Region origin ASes announcing only one prefix: 7099 ARIN Region transit ASes present in the Internet Routing Table: 1988 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: 5374 Number of ARIN addresses announced to Internet: 1352889088 Equivalent to 80 /8s, 163 /16s and 115 /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: 280533 Total RIPE prefixes after maximum aggregation: 138996 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 280584 Unique aggregates announced from the RIPE address blocks: 181223 RIPE Region origin ASes present in the Internet Routing Table: 29095 RIPE Prefixes per ASN: 9.64 RIPE Region origin ASes announcing only one prefix: 12105 RIPE Region transit ASes present in the Internet Routing Table: 4022 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: 12773 Number of RIPE addresses announced to Internet: 732809216 Equivalent to 43 /8s, 173 /16s and 200 /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: 124979 Total LACNIC prefixes after maximum aggregation: 30416 LACNIC Deaggregation factor: 4.11 Prefixes being announced from the LACNIC address blocks: 121064 Unique aggregates announced from the LACNIC address blocks: 49438 LACNIC Region origin ASes present in the Internet Routing Table: 11303 LACNIC Prefixes per ASN: 10.71 LACNIC Region origin ASes announcing only one prefix: 2671 LACNIC Region transit ASes present in the Internet Routing Table: 2550 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: 9279 Number of LACNIC addresses announced to Internet: 170668032 Equivalent to 10 /8s, 44 /16s and 48 /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: 34872 Total AfriNIC prefixes after maximum aggregation: 6876 AfriNIC Deaggregation factor: 5.07 Prefixes being announced from the AfriNIC address blocks: 48655 Unique aggregates announced from the AfriNIC address blocks: 16369 AfriNIC Region origin ASes present in the Internet Routing Table: 1972 AfriNIC Prefixes per ASN: 24.67 AfriNIC Region origin ASes announcing only one prefix: 716 AfriNIC Region transit ASes present in the Internet Routing Table: 381 Average AfriNIC Region AS path length visible: 4.9 Max AfriNIC Region AS path length visible: 37 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1334 Number of AfriNIC addresses announced to Internet: 103771904 Equivalent to 6 /8s, 47 /16s and 111 /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 13842 8730 117 CHINAMOBILE-CN China Mobile Communication 7545 6181 834 601 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4477 536 312 BBIL-AP BHARTI Airtel Ltd., IN 18403 4390 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 3976 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3686 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3297 1868 99 VNPT-AS-VN VNPT Corp, VN 56046 3163 827 180 CMNET-JIANGSU-AP China Mobile communicati 24560 2931 863 500 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 9304 2527 518 1631 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 14367 41089 5399 AMAZON-02, US 11492 4770 322 786 CABLEONE, US 22773 4254 3082 367 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3683 1320 82 SHAW, CA 396982 3273 4825 466 GOOGLE-CLOUD-PLATFORM, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3120 242 1747 USDA-1, US 174 3073 8765 791 COGENT-174, US 16625 3039 1301 2212 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 7376 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 20940 4040 3395 126 AKAMAI-ASN1, NL 9009 3951 372 2241 M247, RO 12389 3138 2313 866 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2528 180 1838 CDNEXT, GB 34984 2415 363 576 TELLCOM-AS, TR 203020 1718 205 1002 HOSTROYALE, IN 8452 1646 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 12397 3283 578 UNINET, MX 10620 3480 468 1088 Telmex Colombia S.A., CO 13999 2517 511 347 Mega Cable, S.A. de C.V., MX 11830 1988 369 64 Instituto Costarricense de Electricidad y 3816 1354 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 28573 1352 2426 293 Claro NXT Telecomunicacoes Ltda, BR 6147 1270 371 23 Telefonica del Peru S.A.A., PE 11664 1251 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1064 71 367 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1014 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 1767 594 28 RAYA-AS, EG 36992 1512 1498 385 ETISALAT-MISR, EG 24863 1250 389 20 LINKdotNET-AS, EG 36903 1250 554 97 MT-MPLS, MA 29571 1189 102 52 ORANGE-COTE-IVOIRE, CI 37069 1085 1096 13 MOBINIL, EG 36935 1010 523 47 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 573 82 3 KENET-AS, KE 15399 544 57 55 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 14367 41089 5399 AMAZON-02, US 9808 13842 8730 117 CHINAMOBILE-CN China Mobile Communication 8151 12397 3283 578 UNINET, MX 12479 7376 1711 149 UNI2-AS, ES 7545 6181 834 601 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 298 66 ALJAWWALSTC-AS, SA 11492 4770 322 786 CABLEONE, US 9498 4477 536 312 BBIL-AP BHARTI Airtel Ltd., IN 18403 4390 347 24 FPT-AS-AP FPT Telecom Company, VN 22773 4254 3082 367 ASN-CXA-ALL-CCI-22773-RDC, US 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 13842 13725 CHINAMOBILE-CN China Mobile Communications Grou 8151 12397 11819 UNINET, MX 12479 7376 7227 UNI2-AS, ES 7545 6181 5580 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4767 ALJAWWALSTC-AS, SA 18403 4390 4366 FPT-AS-AP FPT Telecom Company, VN 9498 4477 4165 BBIL-AP BHARTI Airtel Ltd., IN 11492 4770 3984 CABLEONE, US 7552 3976 3948 VIETEL-AS-AP Viettel Group, VN 20940 4040 3914 AKAMAI-ASN1, NL 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 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, 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 54739 UNALLOCATED 8.44.198.0/23 13335 CLOUDFLARENET, US 397015 UNALLOCATED 8.44.246.0/24 12025 IMDC-AS12025, 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 /14:1204 /15:2127 /16:13780 /17:8210 /18:13494 /19:24709 /20:44331 /21:51950 /22:112744 /23:104534 /24:632305 /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 6617 12397 UNINET, MX 12479 6344 7376 UNI2-AS, ES 11492 3583 4770 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3472 3683 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2651 4254 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2411 14367 AMAZON-02, US 30036 2307 2648 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2215 3480 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) ---------------------------------------------- 1:2416 2:1563 3:946 4:10 5:4849 6:170 7:6 8:1523 9:6 11:172 12:1237 13:559 14:2650 15:403 16:303 17:388 18:906 20:577 21:4 22:188 23:8065 24:2610 25:2 27:2806 29:19 31:3334 32:31 33:1 34:81 35:271 36:4467 37:4544 38:9492 39:1107 40:472 41:4277 42:1960 43:2758 44:402 45:19082 46:5190 47:370 49:2084 50:2055 51:596 52:1598 54:356 55:1094 56:11 57:285 58:2288 59:1308 60:1189 61:2924 62:3088 63:1758 64:5803 65:2121 66:5563 67:3151 68:1468 69:4126 70:1035 71:634 72:2990 74:2836 75:1506 76:603 77:2760 78:1922 79:1753 80:2247 81:2143 82:3482 83:1480 84:1992 85:3548 86:1099 87:2145 88:1360 89:4516 90:814 91:8385 92:2813 93:2989 94:4145 95:4526 96:1495 97:311 98:949 99:755 100:71 101:1224 102:4201 103:32274 104:5454 105:787 106:895 107:2795 108:1202 109:4226 110:2248 111:3791 112:2706 113:1852 114:2072 115:2335 116:2086 117:3040 118:3041 119:1992 120:2305 121:1490 122:2810 123:2268 124:1656 125:2881 126:125 128:1602 129:963 130:1420 131:2174 132:793 133:462 134:1627 135:364 136:1493 137:1325 138:2825 139:1584 140:1637 141:1551 142:2161 143:2088 144:1274 145:629 146:2184 147:2139 148:2747 149:2939 150:1284 151:2627 152:2183 153:641 154:7800 155:2178 156:3182 157:1993 158:1442 159:2609 160:3641 161:1985 162:3971 163:2309 164:1950 165:2555 166:1564 167:2114 168:3816 169:784 170:5384 171:1060 172:4492 173:3426 174:906 175:1344 176:3751 177:4741 178:4305 179:2274 180:2736 181:4244 182:3750 183:2556 184:2091 185:21662 186:5350 187:4723 188:4383 189:4420 190:9701 191:1553 192:11408 193:9469 194:7830 195:5593 196:3264 197:3231 198:6242 199:8804 200:8125 201:6359 202:10484 203:10625 204:4630 205:3688 206:4454 207:3869 208:4259 209:5393 210:4744 211:2691 212:4859 213:3914 214:1031 215:52 216:7075 217:3362 218:1579 219:397 220:2194 221:1251 222:753 223:3072 End of report