IPv4 R&E Routing Table Report 21:10 GMT Sat 11 Oct, 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: 1008425 Prefixes after maximum aggregation (per Origin AS): 391191 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 496427 Number of IPv4 prefixes with a valid ROA: 577927 Number of IPv4 prefixes with an invalid ROA: 145 Number of IPv4 prefixes with no ROA: 430353 Total ASes present in the Internet Routing Table: 77391 Prefixes per ASN: 13.03 Origin-only ASes present in the Internet Routing Table: 66284 Origin ASes announcing only one prefix: 27071 Transit ASes present in the Internet Routing Table: 11107 Transit-only ASes present in the Internet Routing Table: 562 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 ( 59958) 48 Prefixes from unregistered ASNs in the Routing Table: 998 Number of instances of unregistered ASNs: 1027 Number of 32-bit ASNs allocated by the RIRs: 47679 Number of 32-bit ASNs visible in the Routing Table: 39100 Prefixes from 32-bit ASNs in the Routing Table: 212708 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: 464 Number of addresses announced to Internet: 3111084032 Equivalent to 185 /8s, 111 /16s and 96 /24s Percentage of available address space announced: 84.0 Percentage of allocated address space announced: 84.0 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: 328540 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 269383 Total APNIC prefixes after maximum aggregation: 79995 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 259162 Unique aggregates announced from the APNIC address blocks: 105775 APNIC Region origin ASes present in the Internet Routing Table: 14807 APNIC Prefixes per ASN: 17.50 APNIC Region origin ASes announcing only one prefix: 4509 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: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10363 Number of APNIC addresses announced to Internet: 751479808 Equivalent to 44 /8s, 202 /16s and 172 /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: 297300 Total ARIN prefixes after maximum aggregation: 134427 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 298231 Unique aggregates announced from the ARIN address blocks: 143842 ARIN Region origin ASes present in the Internet Routing Table: 19334 ARIN Prefixes per ASN: 15.43 ARIN Region origin ASes announcing only one prefix: 7095 ARIN Region transit ASes present in the Internet Routing Table: 1987 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: 5357 Number of ARIN addresses announced to Internet: 1352180992 Equivalent to 80 /8s, 152 /16s and 165 /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: 280792 Total RIPE prefixes after maximum aggregation: 138892 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 280417 Unique aggregates announced from the RIPE address blocks: 181135 RIPE Region origin ASes present in the Internet Routing Table: 29083 RIPE Prefixes per ASN: 9.64 RIPE Region origin ASes announcing only one prefix: 12095 RIPE Region transit ASes present in the Internet Routing Table: 4015 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 52 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12768 Number of RIPE addresses announced to Internet: 732544768 Equivalent to 43 /8s, 169 /16s and 191 /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: 125035 Total LACNIC prefixes after maximum aggregation: 30337 LACNIC Deaggregation factor: 4.12 Prefixes being announced from the LACNIC address blocks: 121188 Unique aggregates announced from the LACNIC address blocks: 49409 LACNIC Region origin ASes present in the Internet Routing Table: 11303 LACNIC Prefixes per ASN: 10.72 LACNIC Region origin ASes announcing only one prefix: 2657 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: 38 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9278 Number of LACNIC addresses announced to Internet: 170695936 Equivalent to 10 /8s, 44 /16s and 157 /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: 34917 Total AfriNIC prefixes after maximum aggregation: 6867 AfriNIC Deaggregation factor: 5.08 Prefixes being announced from the AfriNIC address blocks: 48962 Unique aggregates announced from the AfriNIC address blocks: 15857 AfriNIC Region origin ASes present in the Internet Routing Table: 1970 AfriNIC Prefixes per ASN: 24.85 AfriNIC Region origin ASes announcing only one prefix: 715 AfriNIC Region transit ASes present in the Internet Routing Table: 380 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 42 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1334 Number of AfriNIC addresses announced to Internet: 103920384 Equivalent to 6 /8s, 49 /16s and 179 /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 13731 8730 117 CHINAMOBILE-CN China Mobile Communication 7545 6185 835 605 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4479 347 24 FPT-AS-AP FPT Telecom Company, VN 9498 4472 536 313 BBIL-AP BHARTI Airtel Ltd., IN 7552 3948 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3687 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3299 1868 99 VNPT-AS-VN VNPT Corp, VN 56046 3136 827 180 CMNET-JIANGSU-AP China Mobile communicati 24560 2920 862 506 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 9304 2467 512 1596 HUTCHISON-AS-AP HGC Global Communications 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 14288 40988 5358 AMAZON-02, US 11492 4756 321 791 CABLEONE, US 22773 4015 3068 364 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3683 1320 82 SHAW, CA 396982 3273 4824 465 GOOGLE-CLOUD-PLATFORM, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3109 241 1740 USDA-1, US 174 3083 8767 802 COGENT-174, US 16625 3038 1300 2211 AKAMAI-AS, 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 7402 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 20940 4043 3395 126 AKAMAI-ASN1, NL 9009 3953 372 2236 M247, RO 12389 3139 2315 867 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2513 180 1826 CDNEXT, GB 34984 2415 363 576 TELLCOM-AS, TR 203020 2037 223 1002 HOSTROYALE, IN 8452 1628 1852 14 TE-AS TE-AS, EG 13188 1607 100 27 TRIOLAN, UA 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 12360 3282 574 UNINET, MX 10620 3476 468 1086 Telmex Colombia S.A., CO 13999 2516 508 351 Mega Cable, S.A. de C.V., MX 11830 1988 369 64 Instituto Costarricense de Electricidad y 28573 1371 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1354 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1239 278 32 Techtel LMDS Comunicaciones Interactivas 6147 1168 371 23 Telefonica del Peru S.A.A., PE 22884 1066 71 365 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1011 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 1766 600 27 RAYA-AS, EG 36992 1512 1498 385 ETISALAT-MISR, EG 24863 1250 389 20 LINKdotNET-AS, EG 36903 1250 554 97 MT-MPLS, MA 29571 1189 102 52 ORANGE-COTE-IVOIRE, CI 37069 1085 1096 13 MOBINIL, EG 36935 958 523 47 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 571 82 3 KENET-AS, KE 15399 543 56 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 14288 40988 5358 AMAZON-02, US 9808 13731 8730 117 CHINAMOBILE-CN China Mobile Communication 8151 12360 3282 574 UNINET, MX 12479 7402 1711 149 UNI2-AS, ES 7545 6185 835 605 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 298 66 ALJAWWALSTC-AS, SA 11492 4756 321 791 CABLEONE, US 18403 4479 347 24 FPT-AS-AP FPT Telecom Company, VN 9498 4472 536 313 BBIL-AP BHARTI Airtel Ltd., IN 20940 4043 3395 126 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 13731 13614 CHINAMOBILE-CN China Mobile Communications Grou 8151 12360 11786 UNINET, MX 12479 7402 7253 UNI2-AS, ES 7545 6185 5580 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4767 ALJAWWALSTC-AS, SA 18403 4479 4455 FPT-AS-AP FPT Telecom Company, VN 9498 4472 4159 BBIL-AP BHARTI Airtel Ltd., IN 11492 4756 3965 CABLEONE, US 7552 3948 3920 VIETEL-AS-AP Viettel Group, VN 20940 4043 3917 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 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, 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 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 54739 UNALLOCATED 8.44.198.0/23 13335 CLOUDFLARENET, US 397015 UNALLOCATED 8.44.246.0/24 12025 IMDC-AS12025, 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 23.135.216.0/24 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 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 /11:93 /12:301 /13:584 /14:1203 /15:2127 /16:13780 /17:8214 /18:13481 /19:24699 /20:44339 /21:51917 /22:112655 /23:104376 /24:630584 /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 6584 12360 UNINET, MX 12479 6367 7402 UNI2-AS, ES 11492 3569 4756 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3472 3683 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2524 4015 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2381 14288 AMAZON-02, US 30036 2300 2640 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2211 3476 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) ---------------------------------------------- 1:2427 2:1563 3:940 4:10 5:4850 6:170 7:6 8:1532 9:6 11:172 12:1240 13:564 14:2647 15:401 16:304 17:388 18:908 20:575 21:4 22:188 23:7952 24:2701 25:2 27:2808 29:19 31:3357 32:31 33:1 34:81 35:268 36:4446 37:4551 38:9475 39:1098 40:469 41:4303 42:2007 43:2736 44:396 45:19128 46:5199 47:365 49:2082 50:2056 51:596 52:1592 54:359 55:1182 56:11 57:284 58:2295 59:1308 60:1189 61:2918 62:3092 63:1769 64:5667 65:2127 66:5073 67:3124 68:1211 69:4018 70:1036 71:634 72:2977 74:2836 75:1504 76:598 77:2771 78:1917 79:1757 80:2247 81:2133 82:3477 83:1474 84:1993 85:3534 86:1100 87:2143 88:1359 89:4515 90:809 91:8384 92:2809 93:2984 94:4164 95:4519 96:1493 97:312 98:948 99:749 100:71 101:1221 102:4174 103:32241 104:5454 105:787 106:890 107:2667 108:1210 109:4229 110:2247 111:3766 112:2661 113:1853 114:2070 115:2339 116:2073 117:3024 118:3040 119:1982 120:2286 121:1487 122:2811 123:2267 124:1657 125:2882 126:125 128:1607 129:964 130:1392 131:2171 132:791 133:462 134:1624 135:363 136:1490 137:1317 138:2827 139:1603 140:1642 141:1541 142:2136 143:2078 144:1270 145:628 146:2186 147:2133 148:2742 149:2927 150:1272 151:2599 152:2178 153:642 154:7850 155:2099 156:3289 157:1988 158:1432 159:2605 160:3627 161:1994 162:3957 163:2295 164:1950 165:2547 166:1565 167:2110 168:3832 169:781 170:5384 171:1057 172:4473 173:3412 174:906 175:1347 176:3808 177:4784 178:4293 179:2273 180:2703 181:4243 182:3751 183:2537 184:2075 185:21692 186:5364 187:4710 188:4379 189:4403 190:9666 191:1559 192:11401 193:9475 194:7796 195:5581 196:3298 197:3250 198:6237 199:8784 200:8194 201:6337 202:10466 203:10618 204:4606 205:3693 206:4440 207:3726 208:4265 209:5371 210:4746 211:2684 212:4829 213:3901 214:1032 215:52 216:6961 217:3364 218:1576 219:394 220:2191 221:1250 222:753 223:3057 End of report