IPv4 R&E Routing Table Report 21:10 GMT Wed 03 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: 997462 Prefixes after maximum aggregation (per Origin AS): 387353 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 491932 Number of IPv4 prefixes with a valid ROA: 567407 Number of IPv4 prefixes with an invalid ROA: 171 Number of IPv4 prefixes with no ROA: 429884 Total ASes present in the Internet Routing Table: 77233 Prefixes per ASN: 12.91 Origin-only ASes present in the Internet Routing Table: 66157 Origin ASes announcing only one prefix: 27012 Transit ASes present in the Internet Routing Table: 11076 Transit-only ASes present in the Internet Routing Table: 558 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 (212940) 45 Prefixes from unregistered ASNs in the Routing Table: 1037 Number of instances of unregistered ASNs: 1066 Number of 32-bit ASNs allocated by the RIRs: 47312 Number of 32-bit ASNs visible in the Routing Table: 38883 Prefixes from 32-bit ASNs in the Routing Table: 209106 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: 448 Number of addresses announced to Internet: 3107413504 Equivalent to 185 /8s, 55 /16s and 94 /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: 325191 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 265320 Total APNIC prefixes after maximum aggregation: 78841 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 255745 Unique aggregates announced from the APNIC address blocks: 105147 APNIC Region origin ASes present in the Internet Routing Table: 14773 APNIC Prefixes per ASN: 17.31 APNIC Region origin ASes announcing only one prefix: 4513 APNIC Region transit ASes present in the Internet Routing Table: 1978 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: 10321 Number of APNIC addresses announced to Internet: 750101760 Equivalent to 44 /8s, 181 /16s and 165 /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: 292961 Total ARIN prefixes after maximum aggregation: 133246 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 295119 Unique aggregates announced from the ARIN address blocks: 142416 ARIN Region origin ASes present in the Internet Routing Table: 19289 ARIN Prefixes per ASN: 15.30 ARIN Region origin ASes announcing only one prefix: 7052 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: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5317 Number of ARIN addresses announced to Internet: 1349554688 Equivalent to 80 /8s, 112 /16s and 146 /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: 278603 Total RIPE prefixes after maximum aggregation: 137594 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 277773 Unique aggregates announced from the RIPE address blocks: 179335 RIPE Region origin ASes present in the Internet Routing Table: 29030 RIPE Prefixes per ASN: 9.57 RIPE Region origin ASes announcing only one prefix: 12087 RIPE Region transit ASes present in the Internet Routing Table: 3993 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: 12670 Number of RIPE addresses announced to Internet: 732048640 Equivalent to 43 /8s, 162 /16s and 45 /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: 124478 Total LACNIC prefixes after maximum aggregation: 30181 LACNIC Deaggregation factor: 4.12 Prefixes being announced from the LACNIC address blocks: 120649 Unique aggregates announced from the LACNIC address blocks: 49366 LACNIC Region origin ASes present in the Internet Routing Table: 11281 LACNIC Prefixes per ASN: 10.69 LACNIC Region origin ASes announcing only one prefix: 2646 LACNIC Region transit ASes present in the Internet Routing Table: 2546 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 36 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9252 Number of LACNIC addresses announced to Internet: 170767104 Equivalent to 10 /8s, 45 /16s and 179 /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: 35063 Total AfriNIC prefixes after maximum aggregation: 6798 AfriNIC Deaggregation factor: 5.16 Prefixes being announced from the AfriNIC address blocks: 47727 Unique aggregates announced from the AfriNIC address blocks: 15280 AfriNIC Region origin ASes present in the Internet Routing Table: 1961 AfriNIC Prefixes per ASN: 24.34 AfriNIC Region origin ASes announcing only one prefix: 714 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: 104696832 Equivalent to 6 /8s, 61 /16s and 140 /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 4379 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3935 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3663 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 2914 864 505 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4755 2169 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 14153 40853 5377 AMAZON-02, US 11492 4750 315 797 CABLEONE, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3659 1320 82 SHAW, CA 22773 3355 3034 179 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 396982 3219 3858 437 GOOGLE-CLOUD-PLATFORM, US 174 3140 8759 839 COGENT-174, US 16625 3053 1300 2214 AKAMAI-AS, US 4155 2977 232 1740 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 7490 1711 150 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 4033 3395 127 AKAMAI-ASN1, NL 9009 3857 365 2189 M247, RO 12389 3118 2315 866 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2404 361 586 TELLCOM-AS, TR 212238 2389 170 1734 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 12300 3273 571 UNINET, MX 10620 3486 472 1048 Telmex Colombia S.A., CO 13999 2531 511 347 Mega Cable, S.A. de C.V., MX 11830 1989 369 64 Instituto Costarricense de Electricidad y 28573 1371 2435 257 Claro NXT Telecomunicacoes Ltda, BR 3816 1352 789 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1214 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1176 371 22 Telefonica del Peru S.A.A., PE 22884 1061 70 374 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1011 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 1792 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 1245 389 20 LINKdotNET-AS, EG 37069 1085 1096 13 MOBINIL, EG 36935 1048 521 43 Vodafone-, EG 36914 582 82 3 KENET-AS, KE 20011 576 154 212 INTERNET-SOLUTIONS, ZA 15399 547 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 14153 40853 5377 AMAZON-02, US 9808 12913 8729 114 CHINAMOBILE-CN China Mobile Communication 8151 12300 3273 571 UNINET, MX 12479 7490 1711 150 UNI2-AS, ES 7545 6140 838 618 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4750 315 797 CABLEONE, US 9498 4467 535 311 BBIL-AP BHARTI Airtel Ltd., IN 18403 4379 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 12300 11729 UNINET, MX 12479 7490 7340 UNI2-AS, ES 7545 6140 5522 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4379 4354 FPT-AS-AP FPT Telecom Company, VN 9498 4467 4156 BBIL-AP BHARTI Airtel Ltd., IN 11492 4750 3953 CABLEONE, US 7552 3935 3908 VIETEL-AS-AP Viettel Group, VN 20940 4033 3906 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 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 23.144.196.0/24 Origin: 47689 PUDU Main public network, US 23.144.196.0/24 Transit: 395823 DOOF, 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 /13:580 /14:1209 /15:2150 /16:13769 /17:8198 /18:13459 /19:24585 /20:44277 /21:51948 /22:112396 /23:103409 /24:621020 /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 6504 12300 UNINET, MX 12479 6440 7490 UNI2-AS, ES 11492 3564 4750 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3456 3659 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2506 3355 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2397 14153 AMAZON-02, US 30036 2324 2667 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2206 3486 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) ---------------------------------------------- 1:2415 2:1543 3:912 4:10 5:4824 6:155 7:6 8:1538 9:4 11:172 12:1254 13:536 14:2606 15:396 16:302 17:386 18:899 20:568 21:4 22:188 23:7879 24:2711 25:2 27:2817 29:19 31:3352 32:29 33:1 34:81 35:261 36:4292 37:4524 38:9290 39:996 40:261 41:4303 42:1938 43:2690 44:381 45:18756 46:5137 47:342 49:1987 50:2060 51:591 52:1602 54:363 55:1105 56:11 57:285 58:2243 59:1278 60:1181 61:2866 62:3043 63:1781 64:5613 65:2136 66:4831 67:3100 68:1068 69:3915 70:1031 71:634 72:2859 74:2814 75:1508 76:601 77:2775 78:1918 79:1748 80:2227 81:2092 82:3285 83:1454 84:1950 85:3494 86:1120 87:2126 88:1354 89:4486 90:802 91:8421 92:2771 93:2974 94:4165 95:4443 96:1471 97:310 98:949 99:728 100:71 101:1219 102:4030 103:32282 104:5322 105:770 106:876 107:2653 108:1233 109:4186 110:2229 111:3580 112:2473 113:1825 114:1979 115:2223 116:2062 117:2696 118:3026 119:1922 120:2204 121:1337 122:2793 123:2250 124:1664 125:2880 126:91 128:1592 129:967 130:1300 131:2165 132:786 133:459 134:1644 135:366 136:1487 137:1321 138:2828 139:1595 140:1623 141:1547 142:1906 143:2066 144:1226 145:605 146:2182 147:2108 148:2712 149:2913 150:1253 151:2360 152:2116 153:629 154:7171 155:1959 156:3227 157:1952 158:1404 159:2557 160:3619 161:1939 162:3908 163:2300 164:1911 165:2525 166:1557 167:2063 168:3827 169:783 170:5251 171:998 172:4259 173:3409 174:904 175:1325 176:3787 177:4803 178:4031 179:2308 180:2586 181:4196 182:3663 183:2244 184:2074 185:21633 186:5359 187:4631 188:4305 189:4363 190:9414 191:1519 192:11393 193:9484 194:7792 195:5645 196:3299 197:3242 198:6237 199:8662 200:8193 201:6383 202:10431 203:10662 204:4580 205:3684 206:4543 207:3657 208:4262 209:5237 210:4725 211:2649 212:4647 213:3844 214:1044 215:51 216:6833 217:3302 218:1482 219:392 220:2151 221:1210 222:749 223:2810 End of report