IPv4 R&E Routing Table Report 21:10 GMT Thu 06 Nov, 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: 1011401 Prefixes after maximum aggregation (per Origin AS): 391828 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 500647 Number of IPv4 prefixes with a valid ROA: 585769 Number of IPv4 prefixes with an invalid ROA: 131 Number of IPv4 prefixes with no ROA: 425497 Total ASes present in the Internet Routing Table: 77478 Prefixes per ASN: 13.05 Origin-only ASes present in the Internet Routing Table: 66326 Origin ASes announcing only one prefix: 27095 Transit ASes present in the Internet Routing Table: 11152 Transit-only ASes present in the Internet Routing Table: 561 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 ( 37447) 39 Prefixes from unregistered ASNs in the Routing Table: 931 Number of instances of unregistered ASNs: 960 Number of 32-bit ASNs allocated by the RIRs: 47912 Number of 32-bit ASNs visible in the Routing Table: 39241 Prefixes from 32-bit ASNs in the Routing Table: 215006 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: 415 Number of addresses announced to Internet: 3102748672 Equivalent to 184 /8s, 240 /16s and 48 /24s Percentage of available address space announced: 83.8 Percentage of allocated address space announced: 83.8 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: 331867 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 270870 Total APNIC prefixes after maximum aggregation: 80445 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 260627 Unique aggregates announced from the APNIC address blocks: 106219 APNIC Region origin ASes present in the Internet Routing Table: 14843 APNIC Prefixes per ASN: 17.56 APNIC Region origin ASes announcing only one prefix: 4536 APNIC Region transit ASes present in the Internet Routing Table: 1999 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 32 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10402 Number of APNIC addresses announced to Internet: 748340480 Equivalent to 44 /8s, 154 /16s and 197 /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: 297544 Total ARIN prefixes after maximum aggregation: 133737 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 297770 Unique aggregates announced from the ARIN address blocks: 145065 ARIN Region origin ASes present in the Internet Routing Table: 19374 ARIN Prefixes per ASN: 15.37 ARIN Region origin ASes announcing only one prefix: 7100 ARIN Region transit ASes present in the Internet Routing Table: 1986 Average ARIN Region AS path length visible: 3.9 Max ARIN Region AS path length visible: 28 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5409 Number of ARIN addresses announced to Internet: 1344817408 Equivalent to 80 /8s, 40 /16s and 73 /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: 281488 Total RIPE prefixes after maximum aggregation: 139649 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 281975 Unique aggregates announced from the RIPE address blocks: 182435 RIPE Region origin ASes present in the Internet Routing Table: 29092 RIPE Prefixes per ASN: 9.69 RIPE Region origin ASes announcing only one prefix: 12083 RIPE Region transit ASes present in the Internet Routing Table: 4037 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 31 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12792 Number of RIPE addresses announced to Internet: 735640576 Equivalent to 43 /8s, 216 /16s and 252 /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: 125444 Total LACNIC prefixes after maximum aggregation: 30440 LACNIC Deaggregation factor: 4.12 Prefixes being announced from the LACNIC address blocks: 121515 Unique aggregates announced from the LACNIC address blocks: 49514 LACNIC Region origin ASes present in the Internet Routing Table: 11312 LACNIC Prefixes per ASN: 10.74 LACNIC Region origin ASes announcing only one prefix: 2655 LACNIC Region transit ASes present in the Internet Routing Table: 2561 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 38 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9296 Number of LACNIC addresses announced to Internet: 170692608 Equivalent to 10 /8s, 44 /16s and 144 /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: 35124 Total AfriNIC prefixes after maximum aggregation: 6918 AfriNIC Deaggregation factor: 5.08 Prefixes being announced from the AfriNIC address blocks: 49098 Unique aggregates announced from the AfriNIC address blocks: 17048 AfriNIC Region origin ASes present in the Internet Routing Table: 1984 AfriNIC Prefixes per ASN: 24.75 AfriNIC Region origin ASes announcing only one prefix: 721 AfriNIC Region transit ASes present in the Internet Routing Table: 379 Average AfriNIC Region AS path length visible: 4.9 Max AfriNIC Region AS path length visible: 42 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1342 Number of AfriNIC addresses announced to Internet: 103035136 Equivalent to 6 /8s, 36 /16s and 49 /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 13392 8730 117 CHINAMOBILE-CN China Mobile Communication 7545 6090 833 590 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4515 538 314 BBIL-AP BHARTI Airtel Ltd., IN 18403 4432 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 3980 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3718 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3306 1868 98 VNPT-AS-VN VNPT Corp, VN 56046 3244 827 180 CMNET-JIANGSU-AP China Mobile communicati 24560 2933 863 512 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 140292 2489 273 1919 CHINATELECOM-JIANGSU-SUZHOU-5G-NETWORK CH 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 14278 37274 5380 AMAZON-02, US 11492 4780 317 801 CABLEONE, US 22773 4636 3107 405 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3861 286 85 VIASAT-SP-BACKBONE, US 6327 3671 1320 82 SHAW, CA 396982 3290 4827 475 GOOGLE-CLOUD-PLATFORM, US 749 3216 54766 2467 DNIC-AS-00749, US 16625 3019 1293 2194 AKAMAI-AS, US 36352 2841 231 919 AS-COLOCROSSING, US 30036 2653 365 301 MEDIACOM-ENTERPRISE-BUSINESS, 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 7288 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 20940 4022 3395 127 AKAMAI-ASN1, NL 9009 4013 378 2280 M247, RO 12389 3151 2317 868 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2539 179 1829 CDNEXT, GB 34984 2416 363 576 TELLCOM-AS, TR 8452 1653 1852 13 TE-AS TE-AS, EG 13188 1606 100 30 TRIOLAN, UA 203020 1575 183 902 HOSTROYALE, IN 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 12484 3292 579 UNINET, MX 10620 3456 463 1099 Telmex Colombia S.A., CO 13999 2503 511 350 Mega Cable, S.A. de C.V., MX 11830 1991 369 64 Instituto Costarricense de Electricidad y 28573 1376 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1353 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1304 278 31 Techtel LMDS Comunicaciones Interactivas 6147 1275 371 22 Telefonica del Peru S.A.A., PE 22884 1062 70 366 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1027 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 1788 594 28 RAYA-AS, EG 36992 1679 1509 397 ETISALAT-MISR, EG 24863 1264 389 20 LINKdotNET-AS, EG 36903 1250 554 97 MT-MPLS, MA 29571 1165 100 70 ORANGE-COTE-IVOIRE, CI 37069 1085 1096 13 MOBINIL, EG 36935 998 521 44 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 556 82 3 KENET-AS, KE 15399 543 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 14278 37274 5380 AMAZON-02, US 9808 13392 8730 117 CHINAMOBILE-CN China Mobile Communication 8151 12484 3292 579 UNINET, MX 12479 7288 1711 149 UNI2-AS, ES 7545 6090 833 590 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 298 66 ALJAWWALSTC-AS, SA 11492 4780 317 801 CABLEONE, US 22773 4636 3107 405 ASN-CXA-ALL-CCI-22773-RDC, US 9498 4515 538 314 BBIL-AP BHARTI Airtel Ltd., IN 18403 4432 347 24 FPT-AS-AP FPT Telecom Company, VN 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 13392 13275 CHINAMOBILE-CN China Mobile Communications Grou 8151 12484 11905 UNINET, MX 12479 7288 7139 UNI2-AS, ES 7545 6090 5500 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4767 ALJAWWALSTC-AS, SA 18403 4432 4408 FPT-AS-AP FPT Telecom Company, VN 22773 4636 4231 ASN-CXA-ALL-CCI-22773-RDC, US 9498 4515 4201 BBIL-AP BHARTI Airtel Ltd., IN 11492 4780 3979 CABLEONE, US 7552 3980 3952 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 53775 UNALLOCATED 8.20.88.0/24 3737 AS-PTD, 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 6461 ZAYO-6461, US 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 54739 UNALLOCATED 8.44.198.0/23 13335 CLOUDFLARENET, US 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174, US 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI Complete listing at https://bgp.nsrc.org/REN/AARNET/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 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 23.147.240.0/24 Origin: 32302 RESERVED, ZZ 23.147.240.0/24 Transit: 32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NE 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 /8:18 /9:14 /10:41 /11:94 /12:298 /13:581 /14:1200 /15:2096 /16:13670 /17:8208 /18:13491 /19:24715 /20:44352 /21:52032 /22:112677 /23:105081 /24:632832 /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 6698 12484 UNINET, MX 12479 6232 7288 UNI2-AS, ES 11492 3593 4780 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3460 3671 SHAW, CA 22773 2986 4636 ASN-CXA-ALL-CCI-22773-RDC, US 7155 2820 3861 VIASAT-SP-BACKBONE, US 16509 2436 14278 AMAZON-02, US 30036 2310 2653 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2211 3456 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) ---------------------------------------------- 1:2434 2:1564 3:970 4:10 5:4911 6:173 7:6 8:1508 9:6 11:172 12:1236 13:552 14:2646 15:404 16:303 17:383 18:905 20:582 21:4 22:188 23:8101 24:2610 25:2 27:2813 29:19 31:3360 32:31 33:1 34:84 35:275 36:4503 37:4572 38:9345 39:1174 40:462 41:4344 42:1945 43:2785 44:406 45:19192 46:5205 47:365 49:2148 50:2056 51:595 52:1627 54:355 55:1100 56:11 57:292 58:2289 59:1310 60:1188 61:2984 62:3102 63:1761 64:5887 65:2128 66:5897 67:3244 68:1488 69:4141 70:1033 71:634 72:2990 74:2895 75:1514 76:600 77:2768 78:1929 79:1791 80:2277 81:2135 82:3584 83:1467 84:2011 85:3585 86:1105 87:2146 88:1364 89:4506 90:830 91:8403 92:2825 93:2994 94:4145 95:4555 96:1481 97:316 98:948 99:756 100:68 101:1338 102:4230 103:32199 104:5468 105:786 106:912 107:2792 108:1199 109:4233 110:2247 111:3860 112:2757 113:1892 114:2087 115:2286 116:2108 117:3095 118:3067 119:2017 120:2348 121:1505 122:2853 123:2277 124:1596 125:2896 126:125 128:1614 129:963 130:1501 131:2227 132:779 133:461 134:1628 135:365 136:1490 137:1331 138:2861 139:1596 140:1674 141:1573 142:2218 143:2131 144:1328 145:631 146:2192 147:2122 148:2777 149:2830 150:1279 151:2649 152:2274 153:653 154:8128 155:2217 156:3234 157:2074 158:1403 159:2666 160:3774 161:2001 162:3994 163:2327 164:1949 165:2291 166:1319 167:2126 168:3821 169:789 170:5463 171:1066 172:4493 173:3428 174:906 175:1345 176:3757 177:4763 178:4299 179:2270 180:2749 181:4304 182:3803 183:2593 184:2084 185:21685 186:5428 187:4726 188:4394 189:4464 190:9695 191:1576 192:11454 193:9509 194:7838 195:5593 196:3277 197:3223 198:6212 199:6091 200:8176 201:6369 202:10492 203:10596 204:4623 205:3706 206:4409 207:3869 208:4262 209:5375 210:4751 211:2646 212:4897 213:3977 214:1040 215:53 216:7158 217:3391 218:1574 219:400 220:2196 221:1267 222:764 223:3111 End of report