IPv4 R&E Routing Table Report 21:10 GMT Sun 07 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: 995403 Prefixes after maximum aggregation (per Origin AS): 385969 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 493116 Number of IPv4 prefixes with a valid ROA: 567709 Number of IPv4 prefixes with an invalid ROA: 165 Number of IPv4 prefixes with no ROA: 427529 Total ASes present in the Internet Routing Table: 77250 Prefixes per ASN: 12.89 Origin-only ASes present in the Internet Routing Table: 66161 Origin ASes announcing only one prefix: 27017 Transit ASes present in the Internet Routing Table: 11089 Transit-only ASes present in the Internet Routing Table: 551 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: 1042 Number of instances of unregistered ASNs: 1071 Number of 32-bit ASNs allocated by the RIRs: 47358 Number of 32-bit ASNs visible in the Routing Table: 38914 Prefixes from 32-bit ASNs in the Routing Table: 209165 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: 3106977024 Equivalent to 185 /8s, 48 /16s and 181 /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: 325486 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 265376 Total APNIC prefixes after maximum aggregation: 78918 APNIC Deaggregation factor: 3.36 Prefixes being announced from the APNIC address blocks: 255728 Unique aggregates announced from the APNIC address blocks: 105504 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: 4510 APNIC Region transit ASes present in the Internet Routing Table: 1973 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: 10329 Number of APNIC addresses announced to Internet: 749957376 Equivalent to 44 /8s, 179 /16s and 113 /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: 290590 Total ARIN prefixes after maximum aggregation: 131677 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 292150 Unique aggregates announced from the ARIN address blocks: 142478 ARIN Region origin ASes present in the Internet Routing Table: 19295 ARIN Prefixes per ASN: 15.14 ARIN Region origin ASes announcing only one prefix: 7056 ARIN Region transit ASes present in the Internet Routing Table: 1984 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: 5322 Number of ARIN addresses announced to Internet: 1349285632 Equivalent to 80 /8s, 108 /16s and 119 /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: 278598 Total RIPE prefixes after maximum aggregation: 137682 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 277758 Unique aggregates announced from the RIPE address blocks: 179467 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: 12087 RIPE Region transit ASes present in the Internet Routing Table: 4009 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: 12686 Number of RIPE addresses announced to Internet: 732082688 Equivalent to 43 /8s, 162 /16s and 178 /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: 124771 Total LACNIC prefixes after maximum aggregation: 30194 LACNIC Deaggregation factor: 4.13 Prefixes being announced from the LACNIC address blocks: 120950 Unique aggregates announced from the LACNIC address blocks: 49443 LACNIC Region origin ASes present in the Internet Routing Table: 11282 LACNIC Prefixes per ASN: 10.72 LACNIC Region origin ASes announcing only one prefix: 2650 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: 9254 Number of LACNIC addresses announced to Internet: 170642688 Equivalent to 10 /8s, 43 /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: 35026 Total AfriNIC prefixes after maximum aggregation: 6803 AfriNIC Deaggregation factor: 5.15 Prefixes being announced from the AfriNIC address blocks: 48368 Unique aggregates announced from the AfriNIC address blocks: 15834 AfriNIC Region origin ASes present in the Internet Routing Table: 1959 AfriNIC Prefixes per ASN: 24.69 AfriNIC Region origin ASes announcing only one prefix: 714 AfriNIC Region transit ASes present in the Internet Routing Table: 380 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: 104764160 Equivalent to 6 /8s, 62 /16s and 147 /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 6139 838 618 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4466 535 310 BBIL-AP BHARTI Airtel Ltd., IN 18403 4406 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3934 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3654 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3293 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 2167 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 14329 40863 5422 AMAZON-02, US 11492 4732 314 822 CABLEONE, US 22773 3952 3063 317 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3659 1320 82 SHAW, CA 396982 3225 3859 443 GOOGLE-CLOUD-PLATFORM, US 749 3220 54766 2471 DNIC-AS-00749, US 174 3136 8759 840 COGENT-174, US 16625 3052 1299 2213 AKAMAI-AS, US 36352 2772 227 911 AS-COLOCROSSING, 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 7489 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 3118 2315 866 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2413 361 586 TELLCOM-AS, TR 212238 2410 171 1745 CDNEXT, GB 203020 1874 225 863 HOSTROYALE, IN 13188 1607 100 27 TRIOLAN, UA 8452 1602 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 12340 3277 574 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 1371 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1352 789 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1216 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1177 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 1246 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 571 82 3 KENET-AS, KE 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 14329 40863 5422 AMAZON-02, US 9808 12913 8729 114 CHINAMOBILE-CN China Mobile Communication 8151 12340 3277 574 UNINET, MX 12479 7489 1711 150 UNI2-AS, ES 7545 6139 838 618 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4732 314 822 CABLEONE, US 9498 4466 535 310 BBIL-AP BHARTI Airtel Ltd., IN 18403 4406 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 12340 11766 UNINET, MX 12479 7489 7339 UNI2-AS, ES 7545 6139 5521 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4406 4381 FPT-AS-AP FPT Telecom Company, VN 9498 4466 4156 BBIL-AP BHARTI Airtel Ltd., IN 11492 4732 3910 CABLEONE, US 7552 3934 3907 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 23.147.240.0/24 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 /11:93 /12:296 /13:580 /14:1209 /15:2149 /16:13757 /17:8204 /18:13453 /19:24568 /20:44264 /21:51886 /22:112360 /23:103375 /24:619137 /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 6540 12340 UNINET, MX 12479 6444 7489 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 3952 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2412 14329 AMAZON-02, US 30036 2327 2670 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 5:4813 6:156 7:6 8:1538 9:4 11:172 12:1254 13:561 14:2615 15:397 16:302 17:388 18:903 20:569 21:4 22:188 23:7863 24:2707 25:2 27:2818 29:19 31:3358 32:29 33:1 34:81 35:269 36:4290 37:4525 38:9316 39:998 40:262 41:4291 42:1939 43:2692 44:381 45:18921 46:5146 47:342 49:1991 50:2057 51:591 52:1608 54:361 55:1104 56:11 57:283 58:2241 59:1282 60:1183 61:2872 62:3045 63:1781 64:5618 65:2133 66:4840 67:3111 68:1071 69:3905 70:1031 71:635 72:2860 74:2822 75:1507 76:600 77:2780 78:1918 79:1754 80:2227 81:2092 82:3307 83:1454 84:1951 85:3495 86:1099 87:2129 88:1354 89:4473 90:803 91:8411 92:2769 93:2974 94:4160 95:4438 96:1469 97:310 98:950 99:735 100:71 101:1219 102:4022 103:32284 104:5289 105:777 106:876 107:2652 108:1218 109:4198 110:2222 111:3583 112:2467 113:1840 114:1979 115:2246 116:2067 117:2697 118:3046 119:1921 120:2204 121:1338 122:2795 123:2250 124:1665 125:2877 126:91 128:1602 129:968 130:1303 131:2165 132:786 133:460 134:1601 135:367 136:1488 137:1317 138:2824 139:1589 140:1624 141:1556 142:1914 143:2019 144:1220 145:608 146:2185 147:2111 148:2713 149:2912 150:1246 151:2361 152:2113 153:629 154:7428 155:1966 156:3458 157:1954 158:1419 159:2562 160:3608 161:1944 162:3906 163:2297 164:1911 165:2554 166:1366 167:2073 168:3837 169:784 170:5246 171:1002 172:4261 173:3410 174:903 175:1336 176:3797 177:4784 178:4041 179:2305 180:2582 181:4180 182:3665 183:2249 184:2069 185:21651 186:5367 187:4661 188:4275 189:4352 190:9680 191:1553 192:11403 193:9478 194:7797 195:5554 196:3280 197:3235 198:6232 199:6024 200:8186 201:6319 202:10436 203:10666 204:4565 205:3687 206:4577 207:3659 208:4260 209:5221 210:4739 211:2651 212:4668 213:3857 214:1038 215:51 216:6859 217:3299 218:1454 219:394 220:2153 221:1210 222:748 223:2808 End of report