IPv4 R&E Routing Table Report 21:10 GMT Wed 06 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: 993630 Prefixes after maximum aggregation (per Origin AS): 384596 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 488691 Number of IPv4 prefixes with a valid ROA: 560476 Number of IPv4 prefixes with an invalid ROA: 152 Number of IPv4 prefixes with no ROA: 433002 Total ASes present in the Internet Routing Table: 77123 Prefixes per ASN: 12.88 Origin-only ASes present in the Internet Routing Table: 66023 Origin ASes announcing only one prefix: 26961 Transit ASes present in the Internet Routing Table: 11100 Transit-only ASes present in the Internet Routing Table: 562 Paths with bogon ASNs present in the IPv4 Routing Table: 13 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 52 Max AS path prepend of ASN ( 37447) 47 Prefixes from unregistered ASNs in the Routing Table: 1080 Number of instances of unregistered ASNs: 1124 Number of 32-bit ASNs allocated by the RIRs: 47065 Number of 32-bit ASNs visible in the Routing Table: 38733 Prefixes from 32-bit ASNs in the Routing Table: 206533 Number of bogon 32-bit ASNs visible in the Routing Table: 100 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 434 Number of addresses announced to Internet: 3107137280 Equivalent to 185 /8s, 51 /16s and 39 /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: 323909 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 263805 Total APNIC prefixes after maximum aggregation: 78213 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 254753 Unique aggregates announced from the APNIC address blocks: 105038 APNIC Region origin ASes present in the Internet Routing Table: 14743 APNIC Prefixes per ASN: 17.28 APNIC Region origin ASes announcing only one prefix: 4497 APNIC Region transit ASes present in the Internet Routing Table: 1980 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: 10278 Number of APNIC addresses announced to Internet: 749487360 Equivalent to 44 /8s, 172 /16s and 69 /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: 292245 Total ARIN prefixes after maximum aggregation: 132471 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 293882 Unique aggregates announced from the ARIN address blocks: 141800 ARIN Region origin ASes present in the Internet Routing Table: 19261 ARIN Prefixes per ASN: 15.26 ARIN Region origin ASes announcing only one prefix: 7045 ARIN Region transit ASes present in the Internet Routing Table: 2000 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 36 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5279 Number of ARIN addresses announced to Internet: 1349286144 Equivalent to 80 /8s, 108 /16s and 121 /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: 277006 Total RIPE prefixes after maximum aggregation: 136505 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 276021 Unique aggregates announced from the RIPE address blocks: 178353 RIPE Region origin ASes present in the Internet Routing Table: 28984 RIPE Prefixes per ASN: 9.52 RIPE Region origin ASes announcing only one prefix: 12059 RIPE Region transit ASes present in the Internet Routing Table: 3985 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: 12622 Number of RIPE addresses announced to Internet: 732026880 Equivalent to 43 /8s, 161 /16s and 216 /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: 124631 Total LACNIC prefixes after maximum aggregation: 29893 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 120969 Unique aggregates announced from the LACNIC address blocks: 49135 LACNIC Region origin ASes present in the Internet Routing Table: 11277 LACNIC Prefixes per ASN: 10.73 LACNIC Region origin ASes announcing only one prefix: 2651 LACNIC Region transit ASes present in the Internet Routing Table: 2562 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: 9245 Number of LACNIC addresses announced to Internet: 171082496 Equivalent to 10 /8s, 50 /16s and 131 /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: 34863 Total AfriNIC prefixes after maximum aggregation: 6806 AfriNIC Deaggregation factor: 5.12 Prefixes being announced from the AfriNIC address blocks: 47570 Unique aggregates announced from the AfriNIC address blocks: 13986 AfriNIC Region origin ASes present in the Internet Routing Table: 1946 AfriNIC Prefixes per ASN: 24.45 AfriNIC Region origin ASes announcing only one prefix: 709 AfriNIC Region transit ASes present in the Internet Routing Table: 378 Average AfriNIC Region AS path length visible: 5.2 Max AfriNIC Region AS path length visible: 50 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1309 Number of AfriNIC addresses announced to Internet: 105011968 Equivalent to 6 /8s, 66 /16s and 91 /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 12564 8762 116 CHINAMOBILE-CN China Mobile Communication 7545 6138 837 624 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4575 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4462 535 311 BBIL-AP BHARTI Airtel Ltd., IN 7552 3909 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3680 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3284 1868 99 VNPT-AS-VN VNPT Corp, VN 56046 2965 811 177 CMNET-JIANGSU-AP China Mobile communicati 24560 2917 864 511 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4755 2171 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 13709 41058 5291 AMAZON-02, US 11492 4827 320 607 CABLEONE, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3635 1320 82 SHAW, CA 174 3467 8769 853 COGENT-174, US 22773 3342 3029 165 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 396982 3202 3856 434 GOOGLE-CLOUD-PLATFORM, US 16625 3054 1295 2218 AKAMAI-AS, US 4155 2898 220 1735 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 7572 1711 153 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 4025 3395 127 AKAMAI-ASN1, NL 9009 3854 365 2172 M247, RO 12389 3111 2315 866 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2404 361 584 TELLCOM-AS, TR 212238 2311 163 1680 CDNEXT, GB 13188 1605 100 37 TRIOLAN, UA 8452 1580 1852 14 TE-AS TE-AS, EG 203020 1517 190 667 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 12328 3272 577 UNINET, MX 10620 3481 473 1037 Telmex Colombia S.A., CO 13999 2529 511 354 Mega Cable, S.A. de C.V., MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 28573 1373 2435 269 Claro NXT Telecomunicacoes Ltda, BR 3816 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1188 371 22 Telefonica del Peru S.A.A., PE 11664 1139 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1068 71 373 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1017 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 1604 102 51 ORANGE-COTE-IVOIRE, CI 36992 1416 1494 374 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 24863 1236 389 20 LINKdotNET-AS, EG 37069 1086 1112 11 MOBINIL, EG 36935 972 520 43 Vodafone-, EG 36914 575 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 15399 542 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 13709 41058 5291 AMAZON-02, US 9808 12564 8762 116 CHINAMOBILE-CN China Mobile Communication 8151 12328 3272 577 UNINET, MX 12479 7572 1711 153 UNI2-AS, ES 7545 6138 837 624 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4827 320 607 CABLEONE, US 39891 4798 293 63 ALJAWWALSTC-AS, SA 18403 4575 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4462 535 311 BBIL-AP BHARTI Airtel Ltd., IN 20940 4025 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 12564 12448 CHINAMOBILE-CN China Mobile Communications Grou 8151 12328 11751 UNINET, MX 12479 7572 7419 UNI2-AS, ES 7545 6138 5514 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4575 4550 FPT-AS-AP FPT Telecom Company, VN 11492 4827 4220 CABLEONE, US 9498 4462 4151 BBIL-AP BHARTI Airtel Ltd., IN 20940 4025 3898 AKAMAI-ASN1, NL 7552 3909 3882 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 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 23.143.100.0/24 Origin: 7029 WINDSTREAM, US 23.143.100.0/24 Transit: 6461 ZAYO-6461, 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 /15:2152 /16:13801 /17:8221 /18:13505 /19:24581 /20:44016 /21:51814 /22:112143 /23:103049 /24:618096 /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 6547 12328 UNINET, MX 12479 6533 7572 UNI2-AS, ES 11492 3619 4827 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3432 3635 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2494 3342 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2339 13709 AMAZON-02, US 30036 2295 2636 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2197 3481 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) ---------------------------------------------- 1:2421 2:1530 3:869 4:10 5:4760 6:163 7:6 8:1544 9:2 11:172 12:1336 13:460 14:2577 15:368 16:286 17:377 18:899 20:562 21:4 22:188 23:7788 24:2719 25:2 27:2800 29:19 31:3361 32:35 33:1 34:80 35:263 36:4179 37:4569 38:9525 39:956 40:250 41:4286 42:2056 43:2692 44:380 45:18621 46:5096 47:336 49:1887 50:2043 51:591 52:1550 54:322 55:1094 56:11 57:273 58:2180 59:1289 60:1184 61:2882 62:2996 63:1782 64:5565 65:2147 66:4764 67:3105 68:1067 69:3912 70:1035 71:633 72:2849 74:2817 75:1509 76:610 77:2782 78:1917 79:1712 80:2207 81:2059 82:3217 83:1440 84:1924 85:3476 86:1095 87:2143 88:1347 89:4420 90:775 91:8415 92:2745 93:2953 94:4081 95:4424 96:1470 97:310 98:955 99:696 100:71 101:1217 102:3895 103:32280 104:5271 105:764 106:976 107:2652 108:1263 109:4192 110:2234 111:3499 112:2397 113:1846 114:1970 115:2243 116:2072 117:2664 118:2972 119:1894 120:2197 121:1334 122:2796 123:2249 124:1657 125:2875 126:91 128:1621 129:971 130:1310 131:2075 132:789 133:450 134:1598 135:353 136:1466 137:1322 138:2843 139:1596 140:1621 141:1531 142:1925 143:1964 144:1181 145:567 146:2178 147:2102 148:2716 149:2948 150:1278 151:2290 152:2097 153:591 154:7595 155:1865 156:3062 157:1933 158:1365 159:2527 160:3609 161:1909 162:3883 163:2254 164:1877 165:2451 166:1531 167:2016 168:3888 169:783 170:5183 171:999 172:4241 173:3414 174:919 175:1323 176:3736 177:4767 178:3948 179:2324 180:2579 181:4146 182:3586 183:2218 184:2081 185:21627 186:5254 187:4650 188:4277 189:4373 190:9511 191:1512 192:11363 193:9480 194:7781 195:5593 196:3286 197:3176 198:6226 199:8605 200:8216 201:6410 202:10388 203:10668 204:4612 205:3646 206:4526 207:3645 208:4295 209:5194 210:4704 211:2642 212:4613 213:3832 214:1029 215:50 216:6804 217:3249 218:1413 219:397 220:2148 221:1209 222:740 223:2778 End of report