IPv4 R&E Routing Table Report 21:10 GMT Mon 01 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: 996925 Prefixes after maximum aggregation (per Origin AS): 387134 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 491965 Number of IPv4 prefixes with a valid ROA: 566664 Number of IPv4 prefixes with an invalid ROA: 151 Number of IPv4 prefixes with no ROA: 430110 Total ASes present in the Internet Routing Table: 77221 Prefixes per ASN: 12.91 Origin-only ASes present in the Internet Routing Table: 66142 Origin ASes announcing only one prefix: 27031 Transit ASes present in the Internet Routing Table: 11079 Transit-only ASes present in the Internet Routing Table: 559 Paths with bogon ASNs present in the IPv4 Routing Table: 9 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: 1050 Number of instances of unregistered ASNs: 1091 Number of 32-bit ASNs allocated by the RIRs: 47305 Number of 32-bit ASNs visible in the Routing Table: 38871 Prefixes from 32-bit ASNs in the Routing Table: 208941 Number of bogon 32-bit ASNs visible in the Routing Table: 92 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 453 Number of addresses announced to Internet: 3107102464 Equivalent to 185 /8s, 50 /16s and 159 /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: 324965 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 265213 Total APNIC prefixes after maximum aggregation: 78828 APNIC Deaggregation factor: 3.36 Prefixes being announced from the APNIC address blocks: 255697 Unique aggregates announced from the APNIC address blocks: 105127 APNIC Region origin ASes present in the Internet Routing Table: 14775 APNIC Prefixes per ASN: 17.31 APNIC Region origin ASes announcing only one prefix: 4508 APNIC Region transit ASes present in the Internet Routing Table: 1977 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: 10319 Number of APNIC addresses announced to Internet: 750021120 Equivalent to 44 /8s, 180 /16s and 106 /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: 292801 Total ARIN prefixes after maximum aggregation: 133136 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 295081 Unique aggregates announced from the ARIN address blocks: 142415 ARIN Region origin ASes present in the Internet Routing Table: 19279 ARIN Prefixes per ASN: 15.31 ARIN Region origin ASes announcing only one prefix: 7057 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: 5309 Number of ARIN addresses announced to Internet: 1349607680 Equivalent to 80 /8s, 113 /16s and 97 /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: 278401 Total RIPE prefixes after maximum aggregation: 137454 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 277615 Unique aggregates announced from the RIPE address blocks: 179266 RIPE Region origin ASes present in the Internet Routing Table: 29020 RIPE Prefixes per ASN: 9.57 RIPE Region origin ASes announcing only one prefix: 12090 RIPE Region transit ASes present in the Internet Routing Table: 3996 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: 12667 Number of RIPE addresses announced to Internet: 731981056 Equivalent to 43 /8s, 161 /16s and 37 /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: 124382 Total LACNIC prefixes after maximum aggregation: 30213 LACNIC Deaggregation factor: 4.12 Prefixes being announced from the LACNIC address blocks: 120630 Unique aggregates announced from the LACNIC address blocks: 49473 LACNIC Region origin ASes present in the Internet Routing Table: 11284 LACNIC Prefixes per ASN: 10.69 LACNIC Region origin ASes announcing only one prefix: 2659 LACNIC Region transit ASes present in the Internet Routing Table: 2549 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: 170749184 Equivalent to 10 /8s, 45 /16s and 109 /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: 35078 Total AfriNIC prefixes after maximum aggregation: 6808 AfriNIC Deaggregation factor: 5.15 Prefixes being announced from the AfriNIC address blocks: 47448 Unique aggregates announced from the AfriNIC address blocks: 15295 AfriNIC Region origin ASes present in the Internet Routing Table: 1963 AfriNIC Prefixes per ASN: 24.17 AfriNIC Region origin ASes announcing only one prefix: 717 AfriNIC Region transit ASes present in the Internet Routing Table: 382 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: 1326 Number of AfriNIC addresses announced to Internet: 104497920 Equivalent to 6 /8s, 58 /16s and 131 /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 12916 8729 114 CHINAMOBILE-CN China Mobile Communication 7545 6139 838 617 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4467 535 311 BBIL-AP BHARTI Airtel Ltd., IN 18403 4382 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3943 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3663 1044 68 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3292 1868 99 VNPT-AS-VN VNPT Corp, VN 56046 2975 811 177 CMNET-JIANGSU-AP China Mobile communicati 24560 2916 864 505 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4755 2170 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 14131 40856 5398 AMAZON-02, US 11492 4744 315 801 CABLEONE, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3651 1320 82 SHAW, CA 22773 3351 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 3157 8758 838 COGENT-174, US 16625 3047 1296 2211 AKAMAI-AS, US 4155 2960 230 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 7509 1711 150 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 4033 3395 127 AKAMAI-ASN1, NL 9009 3843 364 2181 M247, RO 12389 3118 2315 866 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2405 361 586 TELLCOM-AS, TR 212238 2369 169 1725 CDNEXT, GB 203020 1835 221 843 HOSTROYALE, IN 13188 1606 100 34 TRIOLAN, UA 8452 1603 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 12311 3273 572 UNINET, MX 10620 3487 473 1049 Telmex Colombia S.A., CO 13999 2530 511 348 Mega Cable, S.A. de C.V., MX 11830 1986 369 64 Instituto Costarricense de Electricidad y 28573 1369 2432 266 Claro NXT Telecomunicacoes Ltda, BR 3816 1352 789 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1206 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1179 371 22 Telefonica del Peru S.A.A., PE 22884 1059 70 378 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 1765 652 28 RAYA-AS, EG 29571 1498 94 37 ORANGE-COTE-IVOIRE, CI 36992 1423 1495 375 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 24863 1243 389 20 LINKdotNET-AS, EG 37069 1085 1096 13 MOBINIL, EG 36935 973 521 43 Vodafone-, EG 20011 576 154 212 INTERNET-SOLUTIONS, ZA 36914 556 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 14131 40856 5398 AMAZON-02, US 9808 12916 8729 114 CHINAMOBILE-CN China Mobile Communication 8151 12311 3273 572 UNINET, MX 12479 7509 1711 150 UNI2-AS, ES 7545 6139 838 617 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4744 315 801 CABLEONE, US 9498 4467 535 311 BBIL-AP BHARTI Airtel Ltd., IN 18403 4382 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 12916 12802 CHINAMOBILE-CN China Mobile Communications Grou 8151 12311 11739 UNINET, MX 12479 7509 7359 UNI2-AS, ES 7545 6139 5522 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4382 4357 FPT-AS-AP FPT Telecom Company, VN 9498 4467 4156 BBIL-AP BHARTI Airtel Ltd., IN 11492 4744 3943 CABLEONE, US 7552 3943 3916 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 /11:92 /12:298 /13:580 /14:1209 /15:2149 /16:13769 /17:8205 /18:13474 /19:24576 /20:44277 /21:51918 /22:112332 /23:103386 /24:620588 /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 6513 12311 UNINET, MX 12479 6460 7509 UNI2-AS, ES 11492 3560 4744 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3448 3651 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2502 3351 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2386 14131 AMAZON-02, US 30036 2318 2661 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) ---------------------------------------------- 1:2414 2:1545 3:922 4:10 5:4828 6:156 7:6 8:1539 9:4 11:172 12:1251 13:504 14:2599 15:396 16:302 17:386 18:902 20:567 21:4 22:188 23:7872 24:2709 25:2 27:2816 29:19 31:3358 32:29 33:1 34:81 35:259 36:4292 37:4520 38:9385 39:993 40:264 41:4286 42:1938 43:2692 44:382 45:18737 46:5128 47:343 49:1987 50:2065 51:591 52:1597 54:359 55:1110 56:11 57:286 58:2245 59:1280 60:1182 61:2866 62:3035 63:1779 64:5601 65:2128 66:4824 67:3102 68:1068 69:3910 70:1030 71:636 72:2852 74:2815 75:1508 76:601 77:2770 78:1918 79:1750 80:2226 81:2091 82:3277 83:1448 84:1945 85:3493 86:1123 87:2129 88:1354 89:4480 90:796 91:8408 92:2773 93:2983 94:4157 95:4450 96:1469 97:310 98:949 99:723 100:71 101:1216 102:4013 103:32315 104:5320 105:769 106:876 107:2655 108:1236 109:4191 110:2228 111:3579 112:2473 113:1829 114:1980 115:2227 116:2074 117:2703 118:3025 119:1921 120:2204 121:1337 122:2790 123:2236 124:1661 125:2882 126:91 128:1592 129:968 130:1296 131:2152 132:782 133:459 134:1634 135:366 136:1477 137:1313 138:2830 139:1592 140:1617 141:1541 142:1905 143:2002 144:1200 145:605 146:2180 147:2107 148:2719 149:2913 150:1251 151:2372 152:2115 153:629 154:7175 155:1971 156:3088 157:1950 158:1470 159:2555 160:3601 161:1941 162:3908 163:2296 164:1910 165:2521 166:1553 167:2064 168:3856 169:783 170:5248 171:996 172:4257 173:3402 174:904 175:1320 176:3787 177:4828 178:4020 179:2306 180:2592 181:4192 182:3631 183:2241 184:2073 185:21622 186:5340 187:4618 188:4309 189:4341 190:9425 191:1523 192:11369 193:9487 194:7790 195:5645 196:3293 197:3239 198:6237 199:8649 200:8213 201:6387 202:10422 203:10650 204:4595 205:3662 206:4525 207:3654 208:4295 209:5215 210:4725 211:2650 212:4630 213:3832 214:1039 215:51 216:6838 217:3299 218:1452 219:392 220:2153 221:1210 222:749 223:2814 End of report