IPv4 R&E Routing Table Report 21:10 GMT Wed 20 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: 994698 Prefixes after maximum aggregation (per Origin AS): 386106 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 489801 Number of IPv4 prefixes with a valid ROA: 563095 Number of IPv4 prefixes with an invalid ROA: 149 Number of IPv4 prefixes with no ROA: 431454 Total ASes present in the Internet Routing Table: 77227 Prefixes per ASN: 12.88 Origin-only ASes present in the Internet Routing Table: 66131 Origin ASes announcing only one prefix: 27018 Transit ASes present in the Internet Routing Table: 11096 Transit-only ASes present in the Internet Routing Table: 556 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: 1046 Number of instances of unregistered ASNs: 1075 Number of 32-bit ASNs allocated by the RIRs: 47227 Number of 32-bit ASNs visible in the Routing Table: 38849 Prefixes from 32-bit ASNs in the Routing Table: 208055 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: 433 Number of addresses announced to Internet: 3106977280 Equivalent to 185 /8s, 48 /16s and 182 /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: 324467 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 264439 Total APNIC prefixes after maximum aggregation: 78327 APNIC Deaggregation factor: 3.38 Prefixes being announced from the APNIC address blocks: 255620 Unique aggregates announced from the APNIC address blocks: 105120 APNIC Region origin ASes present in the Internet Routing Table: 14779 APNIC Prefixes per ASN: 17.30 APNIC Region origin ASes announcing only one prefix: 4525 APNIC Region transit ASes present in the Internet Routing Table: 1989 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: 10313 Number of APNIC addresses announced to Internet: 749624064 Equivalent to 44 /8s, 174 /16s and 91 /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: 291910 Total ARIN prefixes after maximum aggregation: 132940 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 293930 Unique aggregates announced from the ARIN address blocks: 142111 ARIN Region origin ASes present in the Internet Routing Table: 19280 ARIN Prefixes per ASN: 15.25 ARIN Region origin ASes announcing only one prefix: 7058 ARIN Region transit ASes present in the Internet Routing Table: 1989 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: 5298 Number of ARIN addresses announced to Internet: 1349029888 Equivalent to 80 /8s, 104 /16s and 144 /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: 278065 Total RIPE prefixes after maximum aggregation: 137144 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 277134 Unique aggregates announced from the RIPE address blocks: 178966 RIPE Region origin ASes present in the Internet Routing Table: 29033 RIPE Prefixes per ASN: 9.55 RIPE Region origin ASes announcing only one prefix: 12077 RIPE Region transit ASes present in the Internet Routing Table: 3989 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: 12669 Number of RIPE addresses announced to Internet: 732247296 Equivalent to 43 /8s, 165 /16s and 53 /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: 124459 Total LACNIC prefixes after maximum aggregation: 30192 LACNIC Deaggregation factor: 4.12 Prefixes being announced from the LACNIC address blocks: 120724 Unique aggregates announced from the LACNIC address blocks: 49294 LACNIC Region origin ASes present in the Internet Routing Table: 11280 LACNIC Prefixes per ASN: 10.70 LACNIC Region origin ASes announcing only one prefix: 2640 LACNIC Region transit ASes present in the Internet Routing Table: 2550 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: 9250 Number of LACNIC addresses announced to Internet: 170708224 Equivalent to 10 /8s, 44 /16s and 205 /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: 34779 Total AfriNIC prefixes after maximum aggregation: 6806 AfriNIC Deaggregation factor: 5.11 Prefixes being announced from the AfriNIC address blocks: 46856 Unique aggregates announced from the AfriNIC address blocks: 13933 AfriNIC Region origin ASes present in the Internet Routing Table: 1955 AfriNIC Prefixes per ASN: 23.97 AfriNIC Region origin ASes announcing only one prefix: 718 AfriNIC Region transit ASes present in the Internet Routing Table: 378 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: 1319 Number of AfriNIC addresses announced to Internet: 105125888 Equivalent to 6 /8s, 68 /16s and 24 /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 12896 8761 115 CHINAMOBILE-CN China Mobile Communication 7545 6139 838 617 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4600 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4464 535 311 BBIL-AP BHARTI Airtel Ltd., IN 7552 3925 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3666 1043 72 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3289 1868 99 VNPT-AS-VN VNPT Corp, VN 56046 2967 811 177 CMNET-JIANGSU-AP China Mobile communicati 24560 2919 865 501 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4755 2172 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 13938 41105 5365 AMAZON-02, US 11492 4742 314 779 CABLEONE, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3648 1320 82 SHAW, CA 22773 3340 3033 165 ASN-CXA-ALL-CCI-22773-RDC, US 174 3294 8759 846 COGENT-174, US 749 3222 54766 2473 DNIC-AS-00749, US 396982 3218 3858 437 GOOGLE-CLOUD-PLATFORM, US 16625 3043 1290 2209 AKAMAI-AS, US 4155 2942 229 1743 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 7549 1711 149 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 4027 3395 127 AKAMAI-ASN1, NL 9009 3869 366 2183 M247, RO 12389 3112 2315 866 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2404 361 585 TELLCOM-AS, TR 212238 2329 165 1697 CDNEXT, GB 203020 1710 218 804 HOSTROYALE, IN 13188 1605 100 37 TRIOLAN, UA 8452 1595 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 12233 3270 572 UNINET, MX 10620 3482 472 1053 Telmex Colombia S.A., CO 13999 2529 511 349 Mega Cable, S.A. de C.V., MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 28573 1370 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1185 371 22 Telefonica del Peru S.A.A., PE 11664 1159 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1060 70 379 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1019 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 1499 94 32 ORANGE-COTE-IVOIRE, CI 36992 1420 1495 374 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 24863 1241 389 20 LINKdotNET-AS, EG 37069 1045 1096 13 MOBINIL, EG 36935 972 521 43 Vodafone-, EG 20011 576 154 212 INTERNET-SOLUTIONS, ZA 36914 574 82 3 KENET-AS, KE 15399 543 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 13938 41105 5365 AMAZON-02, US 9808 12896 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 12233 3270 572 UNINET, MX 12479 7549 1711 149 UNI2-AS, ES 7545 6139 838 617 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4742 314 779 CABLEONE, US 18403 4600 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4464 535 311 BBIL-AP BHARTI Airtel Ltd., IN 20940 4027 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 12896 12781 CHINAMOBILE-CN China Mobile Communications Grou 8151 12233 11661 UNINET, MX 12479 7549 7400 UNI2-AS, ES 7545 6139 5522 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4600 4575 FPT-AS-AP FPT Telecom Company, VN 9498 4464 4153 BBIL-AP BHARTI Airtel Ltd., IN 11492 4742 3963 CABLEONE, US 20940 4027 3900 AKAMAI-ASN1, NL 7552 3925 3898 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 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 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 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 /13:580 /14:1208 /15:2151 /16:13794 /17:8223 /18:13494 /19:24583 /20:43931 /21:51842 /22:112194 /23:103159 /24:619077 /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 12479 6510 7549 UNI2-AS, ES 8151 6443 12233 UNINET, MX 11492 3555 4742 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3445 3648 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2492 3340 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2373 13938 AMAZON-02, US 30036 2310 2653 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2202 3482 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 2:1533 3:917 4:9 5:4791 6:158 7:6 8:1535 9:4 11:172 12:1254 13:471 14:2586 15:381 16:285 17:379 18:902 20:564 21:4 22:188 23:7830 24:2703 25:2 27:2815 29:19 31:3371 32:29 33:1 34:81 35:259 36:4290 37:4573 38:9305 39:982 40:262 41:4270 42:2076 43:2701 44:385 45:18592 46:5125 47:336 49:1958 50:2045 51:591 52:1560 54:329 55:1098 56:11 57:285 58:2243 59:1282 60:1178 61:2864 62:3025 63:1783 64:5590 65:2141 66:4797 67:3103 68:1068 69:3897 70:1031 71:636 72:2847 74:2809 75:1509 76:602 77:2772 78:1913 79:1737 80:2225 81:2088 82:3256 83:1447 84:1921 85:3455 86:1126 87:2149 88:1356 89:4484 90:775 91:8417 92:2763 93:2983 94:4151 95:4454 96:1465 97:310 98:953 99:706 100:71 101:1215 102:3919 103:32315 104:5272 105:762 106:875 107:2641 108:1265 109:4184 110:2238 111:3575 112:2461 113:1847 114:1976 115:2229 116:2073 117:2696 118:3041 119:1916 120:2202 121:1333 122:2808 123:2237 124:1656 125:2874 126:91 128:1624 129:964 130:1305 131:2075 132:785 133:451 134:1633 135:356 136:1473 137:1314 138:2841 139:1595 140:1618 141:1537 142:1916 143:1996 144:1200 145:587 146:2182 147:2106 148:2712 149:3011 150:1252 151:2384 152:2111 153:593 154:6971 155:1889 156:2960 157:1952 158:1388 159:2535 160:3610 161:1925 162:3902 163:2280 164:1883 165:2478 166:1543 167:2059 168:3886 169:772 170:5226 171:1002 172:4249 173:3391 174:904 175:1323 176:3748 177:4818 178:3992 179:2343 180:2592 181:4176 182:3602 183:2267 184:2077 185:21656 186:5324 187:4603 188:4301 189:4333 190:9444 191:1585 192:11371 193:9476 194:7789 195:5623 196:3298 197:3219 198:6229 199:8639 200:8191 201:6393 202:10402 203:10652 204:4602 205:3658 206:4530 207:3645 208:4303 209:5175 210:4725 211:2649 212:4611 213:3835 214:1035 215:51 216:6798 217:3304 218:1435 219:398 220:2140 221:1212 222:742 223:2813 End of report