IPv4 R&E Routing Table Report 21:10 GMT Fri 05 Sep, 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: 997368 Prefixes after maximum aggregation (per Origin AS): 387478 Deaggregation factor: 2.57 Unique aggregates announced (without unneeded subnets): 492328 Number of IPv4 prefixes with a valid ROA: 567526 Number of IPv4 prefixes with an invalid ROA: 166 Number of IPv4 prefixes with no ROA: 429676 Total ASes present in the Internet Routing Table: 77246 Prefixes per ASN: 12.91 Origin-only ASes present in the Internet Routing Table: 66164 Origin ASes announcing only one prefix: 27024 Transit ASes present in the Internet Routing Table: 11082 Transit-only ASes present in the Internet Routing Table: 550 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: 92 Max AS path prepend of ASN (212940) 45 Prefixes from unregistered ASNs in the Routing Table: 1038 Number of instances of unregistered ASNs: 1067 Number of 32-bit ASNs allocated by the RIRs: 47329 Number of 32-bit ASNs visible in the Routing Table: 38900 Prefixes from 32-bit ASNs in the Routing Table: 209003 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: 450 Number of addresses announced to Internet: 3106952448 Equivalent to 185 /8s, 48 /16s and 85 /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: 325169 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 265333 Total APNIC prefixes after maximum aggregation: 78858 APNIC Deaggregation factor: 3.36 Prefixes being announced from the APNIC address blocks: 255671 Unique aggregates announced from the APNIC address blocks: 105201 APNIC Region origin ASes present in the Internet Routing Table: 14783 APNIC Prefixes per ASN: 17.29 APNIC Region origin ASes announcing only one prefix: 4508 APNIC Region transit ASes present in the Internet Routing Table: 1980 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 34 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10333 Number of APNIC addresses announced to Internet: 749852160 Equivalent to 44 /8s, 177 /16s and 214 /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: 292906 Total ARIN prefixes after maximum aggregation: 133265 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 295018 Unique aggregates announced from the ARIN address blocks: 142465 ARIN Region origin ASes present in the Internet Routing Table: 19287 ARIN Prefixes per ASN: 15.30 ARIN Region origin ASes announcing only one prefix: 7051 ARIN Region transit ASes present in the Internet Routing Table: 1980 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 41 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5316 Number of ARIN addresses announced to Internet: 1349303808 Equivalent to 80 /8s, 108 /16s and 190 /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: 278589 Total RIPE prefixes after maximum aggregation: 137659 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 277749 Unique aggregates announced from the RIPE address blocks: 179436 RIPE Region origin ASes present in the Internet Routing Table: 29041 RIPE Prefixes per ASN: 9.56 RIPE Region origin ASes announcing only one prefix: 12091 RIPE Region transit ASes present in the Internet Routing Table: 4001 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 49 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12681 Number of RIPE addresses announced to Internet: 732101376 Equivalent to 43 /8s, 162 /16s and 251 /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: 124395 Total LACNIC prefixes after maximum aggregation: 30197 LACNIC Deaggregation factor: 4.12 Prefixes being announced from the LACNIC address blocks: 120613 Unique aggregates announced from the LACNIC address blocks: 49405 LACNIC Region origin ASes present in the Internet Routing Table: 11282 LACNIC Prefixes per ASN: 10.69 LACNIC Region origin ASes announcing only one prefix: 2659 LACNIC Region transit ASes present in the Internet Routing Table: 2542 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 92 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9247 Number of LACNIC addresses announced to Internet: 170766336 Equivalent to 10 /8s, 45 /16s and 176 /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: 35107 Total AfriNIC prefixes after maximum aggregation: 6805 AfriNIC Deaggregation factor: 5.16 Prefixes being announced from the AfriNIC address blocks: 47866 Unique aggregates announced from the AfriNIC address blocks: 15429 AfriNIC Region origin ASes present in the Internet Routing Table: 1961 AfriNIC Prefixes per ASN: 24.41 AfriNIC Region origin ASes announcing only one prefix: 715 AfriNIC Region transit ASes present in the Internet Routing Table: 381 Average AfriNIC Region AS path length visible: 5.1 Max AfriNIC Region AS path length visible: 37 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1323 Number of AfriNIC addresses announced to Internet: 104683776 Equivalent to 6 /8s, 61 /16s and 89 /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 12913 8729 114 CHINAMOBILE-CN China Mobile Communication 7545 6140 838 618 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4467 535 311 BBIL-AP BHARTI Airtel Ltd., IN 18403 4392 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3932 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3654 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3291 1868 99 VNPT-AS-VN VNPT Corp, VN 56046 2975 811 177 CMNET-JIANGSU-AP China Mobile communicati 24560 2915 862 506 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4755 2169 427 182 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 14310 40862 5418 AMAZON-02, US 11492 4732 314 822 CABLEONE, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3659 1320 82 SHAW, CA 22773 3355 3034 180 ASN-CXA-ALL-CCI-22773-RDC, US 396982 3224 3859 442 GOOGLE-CLOUD-PLATFORM, US 749 3221 54766 2472 DNIC-AS-00749, US 174 3135 8759 839 COGENT-174, US 16625 3052 1299 2213 AKAMAI-AS, US 4155 2979 232 1742 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 7491 1711 150 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 4033 3395 127 AKAMAI-ASN1, NL 9009 3857 364 2187 M247, RO 12389 3119 2315 866 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2413 361 586 TELLCOM-AS, TR 212238 2411 171 1746 CDNEXT, GB 203020 1874 225 863 HOSTROYALE, IN 13188 1606 100 34 TRIOLAN, UA 8452 1605 1852 14 TE-AS TE-AS, EG 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 12308 3275 575 UNINET, MX 10620 3487 473 1049 Telmex Colombia S.A., CO 13999 2538 511 347 Mega Cable, S.A. de C.V., MX 11830 1989 369 64 Instituto Costarricense de Electricidad y 28573 1370 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1352 789 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1215 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1178 371 22 Telefonica del Peru S.A.A., PE 22884 1061 70 374 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1012 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 1824 652 28 RAYA-AS, EG 36992 1425 1495 377 ETISALAT-MISR, EG 29571 1371 102 38 ORANGE-COTE-IVOIRE, CI 36903 1250 554 97 MT-MPLS, MA 24863 1244 389 20 LINKdotNET-AS, EG 37069 1085 1096 13 MOBINIL, EG 36935 1066 523 46 Vodafone-, EG 20011 576 154 212 INTERNET-SOLUTIONS, ZA 36914 575 82 3 KENET-AS, KE 15399 548 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 14310 40862 5418 AMAZON-02, US 9808 12913 8729 114 CHINAMOBILE-CN China Mobile Communication 8151 12308 3275 575 UNINET, MX 12479 7491 1711 150 UNI2-AS, ES 7545 6140 838 618 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4732 314 822 CABLEONE, US 9498 4467 535 311 BBIL-AP BHARTI Airtel Ltd., IN 18403 4392 347 25 FPT-AS-AP FPT Telecom Company, VN 20940 4033 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 12913 12799 CHINAMOBILE-CN China Mobile Communications Grou 8151 12308 11733 UNINET, MX 12479 7491 7341 UNI2-AS, ES 7545 6140 5522 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4392 4367 FPT-AS-AP FPT Telecom Company, VN 9498 4467 4156 BBIL-AP BHARTI Airtel Ltd., IN 11492 4732 3910 CABLEONE, US 20940 4033 3906 AKAMAI-ASN1, NL 7552 3932 3905 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 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 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 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 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 23.147.240.0/24 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 /8:16 /9:14 /10:41 /11:92 /12:298 /13:580 /14:1209 /15:2150 /16:13755 /17:8199 /18:13452 /19:24582 /20:44272 /21:51879 /22:112414 /23:103426 /24:620988 /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 6513 12308 UNINET, MX 12479 6446 7491 UNI2-AS, ES 11492 3548 4732 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3456 3659 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2505 3355 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2410 14310 AMAZON-02, US 30036 2326 2669 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2207 3487 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) ---------------------------------------------- 1:2418 2:1542 3:933 4:10 5:4826 6:156 7:6 8:1538 9:4 11:172 12:1254 13:557 14:2614 15:397 16:302 17:389 18:903 20:568 21:4 22:188 23:7856 24:2706 25:2 27:2815 29:19 31:3355 32:29 33:1 34:81 35:265 36:4292 37:4528 38:9314 39:996 40:261 41:4299 42:1940 43:2689 44:381 45:18807 46:5142 47:343 49:1987 50:2057 51:591 52:1608 54:361 55:1113 56:11 57:283 58:2241 59:1282 60:1183 61:2865 62:3043 63:1780 64:5611 65:2129 66:4839 67:3107 68:1069 69:3905 70:1031 71:634 72:2860 74:2817 75:1507 76:601 77:2781 78:1918 79:1754 80:2228 81:2094 82:3298 83:1454 84:1951 85:3500 86:1098 87:2130 88:1354 89:4477 90:803 91:8401 92:2769 93:2974 94:4158 95:4446 96:1469 97:310 98:950 99:735 100:71 101:1221 102:4035 103:32287 104:5291 105:776 106:876 107:2651 108:1219 109:4199 110:2225 111:3582 112:2468 113:1832 114:1979 115:2252 116:2067 117:2696 118:3045 119:1921 120:2201 121:1338 122:2793 123:2250 124:1664 125:2879 126:91 128:1600 129:967 130:1303 131:2157 132:786 133:460 134:1602 135:367 136:1488 137:1309 138:2814 139:1590 140:1624 141:1548 142:1911 143:2017 144:1219 145:607 146:2184 147:2114 148:2717 149:2913 150:1252 151:2358 152:2116 153:629 154:7230 155:1963 156:3169 157:1955 158:1419 159:2561 160:3604 161:1941 162:3906 163:2303 164:1915 165:2551 166:1557 167:2069 168:3819 169:784 170:5257 171:1001 172:4260 173:3408 174:903 175:1326 176:3796 177:4740 178:4032 179:2293 180:2580 181:4171 182:3663 183:2244 184:2068 185:21654 186:5328 187:4629 188:4281 189:4362 190:9536 191:1519 192:11403 193:9478 194:7798 195:5556 196:3295 197:3245 198:6232 199:8656 200:8204 201:6346 202:10420 203:10670 204:4568 205:3688 206:4547 207:3659 208:4256 209:5213 210:4741 211:2652 212:4665 213:3851 214:1041 215:51 216:6857 217:3298 218:1455 219:393 220:2152 221:1210 222:748 223:2813 End of report