IPv4 R&E Routing Table Report 21:10 GMT Tue 14 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: 1008347 Prefixes after maximum aggregation (per Origin AS): 391332 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 497175 Number of IPv4 prefixes with a valid ROA: 578547 Number of IPv4 prefixes with an invalid ROA: 135 Number of IPv4 prefixes with no ROA: 429665 Total ASes present in the Internet Routing Table: 77423 Prefixes per ASN: 13.02 Origin-only ASes present in the Internet Routing Table: 66317 Origin ASes announcing only one prefix: 27112 Transit ASes present in the Internet Routing Table: 11106 Transit-only ASes present in the Internet Routing Table: 558 Paths with bogon ASNs present in the IPv4 Routing Table: 45 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: 997 Number of instances of unregistered ASNs: 1063 Number of 32-bit ASNs allocated by the RIRs: 47697 Number of 32-bit ASNs visible in the Routing Table: 39132 Prefixes from 32-bit ASNs in the Routing Table: 212492 Number of bogon 32-bit ASNs visible in the Routing Table: 148 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 459 Number of addresses announced to Internet: 3111347968 Equivalent to 185 /8s, 115 /16s and 103 /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: 328552 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 269601 Total APNIC prefixes after maximum aggregation: 80099 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 259443 Unique aggregates announced from the APNIC address blocks: 105868 APNIC Region origin ASes present in the Internet Routing Table: 14834 APNIC Prefixes per ASN: 17.49 APNIC Region origin ASes announcing only one prefix: 4532 APNIC Region transit ASes present in the Internet Routing Table: 1976 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 37 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10389 Number of APNIC addresses announced to Internet: 751542016 Equivalent to 44 /8s, 203 /16s and 159 /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: 297510 Total ARIN prefixes after maximum aggregation: 134459 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 298337 Unique aggregates announced from the ARIN address blocks: 144006 ARIN Region origin ASes present in the Internet Routing Table: 19343 ARIN Prefixes per ASN: 15.42 ARIN Region origin ASes announcing only one prefix: 7100 ARIN Region transit ASes present in the Internet Routing Table: 1984 Average ARIN Region AS path length visible: 3.9 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5364 Number of ARIN addresses announced to Internet: 1352429312 Equivalent to 80 /8s, 156 /16s and 111 /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: 280356 Total RIPE prefixes after maximum aggregation: 138881 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 280377 Unique aggregates announced from the RIPE address blocks: 181110 RIPE Region origin ASes present in the Internet Routing Table: 29078 RIPE Prefixes per ASN: 9.64 RIPE Region origin ASes announcing only one prefix: 12096 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: 12762 Number of RIPE addresses announced to Internet: 732673280 Equivalent to 43 /8s, 171 /16s and 181 /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: 125102 Total LACNIC prefixes after maximum aggregation: 30347 LACNIC Deaggregation factor: 4.12 Prefixes being announced from the LACNIC address blocks: 121217 Unique aggregates announced from the LACNIC address blocks: 49414 LACNIC Region origin ASes present in the Internet Routing Table: 11305 LACNIC Prefixes per ASN: 10.72 LACNIC Region origin ASes announcing only one prefix: 2665 LACNIC Region transit ASes present in the Internet Routing Table: 2553 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: 9279 Number of LACNIC addresses announced to Internet: 170705664 Equivalent to 10 /8s, 44 /16s and 195 /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: 34781 Total AfriNIC prefixes after maximum aggregation: 6875 AfriNIC Deaggregation factor: 5.06 Prefixes being announced from the AfriNIC address blocks: 48513 Unique aggregates announced from the AfriNIC address blocks: 16369 AfriNIC Region origin ASes present in the Internet Routing Table: 1976 AfriNIC Prefixes per ASN: 24.55 AfriNIC Region origin ASes announcing only one prefix: 719 AfriNIC Region transit ASes present in the Internet Routing Table: 381 Average AfriNIC Region AS path length visible: 4.9 Max AfriNIC Region AS path length visible: 42 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1338 Number of AfriNIC addresses announced to Internet: 103752192 Equivalent to 6 /8s, 47 /16s and 34 /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 13820 8730 117 CHINAMOBILE-CN China Mobile Communication 7545 6183 835 603 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4477 536 312 BBIL-AP BHARTI Airtel Ltd., IN 18403 4442 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 3959 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3687 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3297 1868 99 VNPT-AS-VN VNPT Corp, VN 56046 3136 827 180 CMNET-JIANGSU-AP China Mobile communicati 24560 2927 862 498 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 9304 2509 516 1634 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 14284 40987 5352 AMAZON-02, US 11492 4770 322 786 CABLEONE, US 22773 4111 3074 366 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3683 1320 82 SHAW, CA 396982 3273 4824 464 GOOGLE-CLOUD-PLATFORM, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3116 241 1742 USDA-1, US 174 3091 8767 802 COGENT-174, US 16625 3039 1301 2212 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 7405 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 20940 4041 3395 126 AKAMAI-ASN1, NL 9009 3944 371 2236 M247, RO 12389 3137 2313 866 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2517 180 1830 CDNEXT, GB 34984 2415 363 576 TELLCOM-AS, TR 203020 1687 198 994 HOSTROYALE, IN 8452 1644 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 12386 3284 577 UNINET, MX 10620 3476 468 1086 Telmex Colombia S.A., CO 13999 2509 508 344 Mega Cable, S.A. de C.V., MX 11830 1988 369 64 Instituto Costarricense de Electricidad y 28573 1373 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1354 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1271 371 23 Telefonica del Peru S.A.A., PE 11664 1244 278 32 Techtel LMDS Comunicaciones Interactivas 22884 1064 71 367 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1014 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 1767 594 28 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 1010 523 47 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 575 82 3 KENET-AS, KE 15399 544 57 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 14284 40987 5352 AMAZON-02, US 9808 13820 8730 117 CHINAMOBILE-CN China Mobile Communication 8151 12386 3284 577 UNINET, MX 12479 7405 1711 149 UNI2-AS, ES 7545 6183 835 603 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 298 66 ALJAWWALSTC-AS, SA 11492 4770 322 786 CABLEONE, US 9498 4477 536 312 BBIL-AP BHARTI Airtel Ltd., IN 18403 4442 347 24 FPT-AS-AP FPT Telecom Company, VN 22773 4111 3074 366 ASN-CXA-ALL-CCI-22773-RDC, US 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 13820 13703 CHINAMOBILE-CN China Mobile Communications Grou 8151 12386 11809 UNINET, MX 12479 7405 7256 UNI2-AS, ES 7545 6183 5580 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4767 ALJAWWALSTC-AS, SA 18403 4442 4418 FPT-AS-AP FPT Telecom Company, VN 9498 4477 4165 BBIL-AP BHARTI Airtel Ltd., IN 11492 4770 3984 CABLEONE, US 7552 3959 3931 VIETEL-AS-AP Viettel Group, VN 20940 4041 3915 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 /12:300 /13:583 /14:1203 /15:2128 /16:13781 /17:8207 /18:13474 /19:24689 /20:44284 /21:51988 /22:112666 /23:104446 /24:630433 /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 6602 12386 UNINET, MX 12479 6371 7405 UNI2-AS, ES 11492 3583 4770 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3472 3683 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2587 4111 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2392 14284 AMAZON-02, US 30036 2306 2646 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) ---------------------------------------------- 1:2423 2:1564 3:940 4:10 5:4840 6:170 7:6 8:1528 9:6 11:172 12:1240 13:562 14:2648 15:402 16:304 17:388 18:906 20:575 21:4 22:188 23:7967 24:2701 25:2 27:2811 29:19 31:3336 32:31 33:1 34:81 35:269 36:4453 37:4540 38:9453 39:1107 40:471 41:4260 42:1976 43:2745 44:399 45:19096 46:5196 47:369 49:2083 50:2055 51:596 52:1592 54:359 55:1089 56:11 57:286 58:2290 59:1308 60:1189 61:2922 62:3079 63:1765 64:5662 65:2119 66:5086 67:3121 68:1229 69:4029 70:1036 71:634 72:2984 74:2838 75:1505 76:602 77:2764 78:1918 79:1746 80:2248 81:2139 82:3483 83:1479 84:1994 85:3522 86:1100 87:2150 88:1359 89:4515 90:813 91:8380 92:2812 93:2980 94:4140 95:4527 96:1491 97:312 98:949 99:755 100:71 101:1222 102:4182 103:32241 104:5441 105:771 106:894 107:2734 108:1206 109:4235 110:2248 111:3782 112:2699 113:1856 114:2069 115:2337 116:2074 117:3043 118:3048 119:1982 120:2295 121:1489 122:2810 123:2267 124:1655 125:2883 126:125 128:1603 129:966 130:1413 131:2183 132:792 133:462 134:1623 135:364 136:1490 137:1320 138:2835 139:1601 140:1640 141:1542 142:2163 143:2087 144:1273 145:629 146:2186 147:2139 148:2747 149:2853 150:1275 151:2605 152:2183 153:641 154:7744 155:2113 156:3170 157:1991 158:1436 159:2608 160:3638 161:1989 162:3967 163:2303 164:1955 165:2548 166:1565 167:2114 168:3817 169:783 170:5376 171:1059 172:4480 173:3410 174:905 175:1344 176:3755 177:4778 178:4295 179:2274 180:2735 181:4262 182:3749 183:2548 184:2081 185:21654 186:5343 187:4717 188:4383 189:4390 190:9721 191:1551 192:11404 193:9495 194:7802 195:5575 196:3286 197:3244 198:6237 199:8784 200:8196 201:6358 202:10478 203:10621 204:4617 205:3693 206:4444 207:3731 208:4255 209:5379 210:4744 211:2687 212:4837 213:3906 214:1034 215:52 216:6958 217:3357 218:1579 219:395 220:2188 221:1250 222:753 223:3065 End of report