IPv4 R&E Routing Table Report 21:10 GMT Mon 11 Aug, 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: 994293 Prefixes after maximum aggregation (per Origin AS): 385145 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 488919 Number of IPv4 prefixes with a valid ROA: 561654 Number of IPv4 prefixes with an invalid ROA: 149 Number of IPv4 prefixes with no ROA: 432490 Total ASes present in the Internet Routing Table: 77150 Prefixes per ASN: 12.89 Origin-only ASes present in the Internet Routing Table: 66028 Origin ASes announcing only one prefix: 26983 Transit ASes present in the Internet Routing Table: 11122 Transit-only ASes present in the Internet Routing Table: 555 Paths with bogon ASNs present in the IPv4 Routing Table: 23 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 84 Max AS path prepend of ASN (212940) 45 Prefixes from unregistered ASNs in the Routing Table: 1074 Number of instances of unregistered ASNs: 1128 Number of 32-bit ASNs allocated by the RIRs: 47115 Number of 32-bit ASNs visible in the Routing Table: 38765 Prefixes from 32-bit ASNs in the Routing Table: 206858 Number of bogon 32-bit ASNs visible in the Routing Table: 120 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 434 Number of addresses announced to Internet: 3107676928 Equivalent to 185 /8s, 59 /16s and 99 /24s Percentage of available address space announced: 83.9 Percentage of allocated address space announced: 83.9 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: 324018 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 264056 Total APNIC prefixes after maximum aggregation: 78284 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 254935 Unique aggregates announced from the APNIC address blocks: 104867 APNIC Region origin ASes present in the Internet Routing Table: 14759 APNIC Prefixes per ASN: 17.27 APNIC Region origin ASes announcing only one prefix: 4508 APNIC Region transit ASes present in the Internet Routing Table: 1991 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 34 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10293 Number of APNIC addresses announced to Internet: 749424384 Equivalent to 44 /8s, 171 /16s and 79 /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: 292581 Total ARIN prefixes after maximum aggregation: 132663 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 294128 Unique aggregates announced from the ARIN address blocks: 141919 ARIN Region origin ASes present in the Internet Routing Table: 19264 ARIN Prefixes per ASN: 15.27 ARIN Region origin ASes announcing only one prefix: 7045 ARIN Region transit ASes present in the Internet Routing Table: 1990 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: 5283 Number of ARIN addresses announced to Internet: 1349452544 Equivalent to 80 /8s, 111 /16s and 3 /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: 277520 Total RIPE prefixes after maximum aggregation: 136799 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 276553 Unique aggregates announced from the RIPE address blocks: 178613 RIPE Region origin ASes present in the Internet Routing Table: 28992 RIPE Prefixes per ASN: 9.54 RIPE Region origin ASes announcing only one prefix: 12059 RIPE Region transit ASes present in the Internet Routing Table: 3996 Average RIPE Region AS path length visible: 4.5 Max RIPE Region AS path length visible: 49 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12627 Number of RIPE addresses announced to Internet: 732143872 Equivalent to 43 /8s, 163 /16s and 161 /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: 124270 Total LACNIC prefixes after maximum aggregation: 29889 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 120589 Unique aggregates announced from the LACNIC address blocks: 49092 LACNIC Region origin ASes present in the Internet Routing Table: 11279 LACNIC Prefixes per ASN: 10.69 LACNIC Region origin ASes announcing only one prefix: 2658 LACNIC Region transit ASes present in the Internet Routing Table: 2569 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 36 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9248 Number of LACNIC addresses announced to Internet: 171186176 Equivalent to 10 /8s, 52 /16s and 24 /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: 34792 Total AfriNIC prefixes after maximum aggregation: 6805 AfriNIC Deaggregation factor: 5.11 Prefixes being announced from the AfriNIC address blocks: 47653 Unique aggregates announced from the AfriNIC address blocks: 14049 AfriNIC Region origin ASes present in the Internet Routing Table: 1952 AfriNIC Prefixes per ASN: 24.41 AfriNIC Region origin ASes announcing only one prefix: 713 AfriNIC Region transit ASes present in the Internet Routing Table: 380 Average AfriNIC Region AS path length visible: 5.1 Max AfriNIC Region AS path length visible: 84 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1314 Number of AfriNIC addresses announced to Internet: 105227264 Equivalent to 6 /8s, 69 /16s and 164 /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 12628 8761 115 CHINAMOBILE-CN China Mobile Communication 7545 6139 838 618 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4577 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4463 535 311 BBIL-AP BHARTI Airtel Ltd., IN 7552 3942 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3690 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3286 1868 99 VNPT-AS-VN VNPT Corp, VN 56046 2965 811 177 CMNET-JIANGSU-AP China Mobile communicati 24560 2918 864 504 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4755 2173 427 183 TATACOMM-AS TATA Communications formerly 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 13776 41094 5312 AMAZON-02, US 11492 4783 317 680 CABLEONE, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3643 1320 82 SHAW, CA 174 3593 8769 854 COGENT-174, US 22773 3340 3029 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 396982 3204 3858 436 GOOGLE-CLOUD-PLATFORM, US 16625 3051 1291 2216 AKAMAI-AS, US 4155 2914 227 1732 USDA-1, 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 7566 1711 153 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 4035 3395 127 AKAMAI-ASN1, NL 9009 3858 366 2175 M247, RO 12389 3112 2315 866 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2404 361 584 TELLCOM-AS, TR 212238 2326 165 1691 CDNEXT, GB 13188 1605 100 37 TRIOLAN, UA 8452 1581 1852 14 TE-AS TE-AS, EG 203020 1521 191 669 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 12325 3272 580 UNINET, MX 10620 3472 472 1055 Telmex Colombia S.A., CO 13999 2528 511 354 Mega Cable, S.A. de C.V., MX 11830 1986 369 64 Instituto Costarricense de Electricidad y 28573 1371 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1184 371 22 Telefonica del Peru S.A.A., PE 11664 1142 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1068 71 373 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1013 2487 55 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 1770 660 28 RAYA-AS, EG 29571 1488 94 32 ORANGE-COTE-IVOIRE, CI 36992 1420 1495 375 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 24863 1241 389 20 LINKdotNET-AS, EG 37069 1086 1112 11 MOBINIL, EG 36935 972 520 43 Vodafone-, EG 36914 570 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 15399 535 57 58 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 13776 41094 5312 AMAZON-02, US 9808 12628 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 12325 3272 580 UNINET, MX 12479 7566 1711 153 UNI2-AS, ES 7545 6139 838 618 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4783 317 680 CABLEONE, US 18403 4577 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4463 535 311 BBIL-AP BHARTI Airtel Ltd., IN 20940 4035 3395 127 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 12628 12513 CHINAMOBILE-CN China Mobile Communications Grou 8151 12325 11745 UNINET, MX 12479 7566 7413 UNI2-AS, ES 7545 6139 5521 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4577 4552 FPT-AS-AP FPT Telecom Company, VN 9498 4463 4152 BBIL-AP BHARTI Airtel Ltd., IN 11492 4783 4103 CABLEONE, US 7552 3942 3915 VIETEL-AS-AP Viettel Group, VN 20940 4035 3908 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 33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US 398074 UNALLOCATED 8.28.115.0/24 32787 PROLEXIC-TECHNOLOGIES-D 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 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US 395195 UNALLOCATED 8.38.115.0/24 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 23.140.216.0/24 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 23.147.224.0/24 Origin: 27392 639-DATACENTERS, US 23.147.224.0/24 Transit: 3356 LEVEL3, 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 /11:92 /12:298 /13:581 /14:1209 /15:2154 /16:13804 /17:8228 /18:13512 /19:24578 /20:43978 /21:51848 /22:112245 /23:103169 /24:618525 /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 6544 12325 UNINET, MX 12479 6528 7566 UNI2-AS, ES 11492 3593 4783 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3440 3643 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2493 3340 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2340 13776 AMAZON-02, US 30036 2297 2639 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2192 3472 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) ---------------------------------------------- 1:2419 2:1532 3:876 4:10 5:4754 6:157 7:6 8:1543 9:2 11:172 12:1335 13:471 14:2581 15:370 16:286 17:379 18:899 20:563 21:4 22:188 23:7804 24:2703 25:2 27:2811 29:19 31:3373 32:35 33:1 34:80 35:263 36:4216 37:4575 38:9521 39:967 40:258 41:4277 42:2056 43:2693 44:383 45:18629 46:5141 47:338 49:1895 50:2049 51:591 52:1550 54:323 55:1108 56:11 57:274 58:2186 59:1286 60:1175 61:2881 62:3012 63:1783 64:5581 65:2144 66:4774 67:3105 68:1071 69:3908 70:1031 71:634 72:2851 74:2818 75:1509 76:606 77:2772 78:1914 79:1733 80:2211 81:2073 82:3240 83:1434 84:1926 85:3455 86:1116 87:2148 88:1345 89:4441 90:774 91:8430 92:2750 93:2962 94:4119 95:4457 96:1471 97:310 98:958 99:698 100:71 101:1214 102:3918 103:32282 104:5265 105:763 106:875 107:2654 108:1264 109:4186 110:2233 111:3478 112:2421 113:1847 114:1974 115:2225 116:2071 117:2688 118:2978 119:1903 120:2188 121:1335 122:2797 123:2251 124:1654 125:2880 126:91 128:1614 129:953 130:1312 131:2058 132:785 133:450 134:1600 135:356 136:1466 137:1321 138:2824 139:1595 140:1627 141:1532 142:1923 143:1963 144:1184 145:575 146:2182 147:2106 148:2703 149:2977 150:1278 151:2322 152:2101 153:594 154:7601 155:1881 156:3072 157:1942 158:1374 159:2528 160:3604 161:1908 162:3885 163:2264 164:1879 165:2467 166:1535 167:2039 168:3876 169:782 170:5208 171:997 172:4243 173:3403 174:910 175:1321 176:3732 177:4691 178:3983 179:2314 180:2590 181:4146 182:3593 183:2245 184:2079 185:21624 186:5218 187:4643 188:4275 189:4339 190:9493 191:1512 192:11351 193:9490 194:7790 195:5605 196:3290 197:3174 198:6243 199:8616 200:8206 201:6365 202:10399 203:10674 204:4616 205:3688 206:4564 207:3646 208:4298 209:5161 210:4714 211:2643 212:4596 213:3839 214:1035 215:50 216:6806 217:3284 218:1421 219:397 220:2144 221:1210 222:742 223:2780 End of report