IPv4 R&E Routing Table Report 21:10 GMT Wed 22 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: 1011537 Prefixes after maximum aggregation (per Origin AS): 392044 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 498396 Number of IPv4 prefixes with a valid ROA: 581059 Number of IPv4 prefixes with an invalid ROA: 126 Number of IPv4 prefixes with no ROA: 430352 Total ASes present in the Internet Routing Table: 77473 Prefixes per ASN: 13.06 Origin-only ASes present in the Internet Routing Table: 66325 Origin ASes announcing only one prefix: 27131 Transit ASes present in the Internet Routing Table: 11148 Transit-only ASes present in the Internet Routing Table: 557 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 ( 37447) 39 Prefixes from unregistered ASNs in the Routing Table: 964 Number of instances of unregistered ASNs: 993 Number of 32-bit ASNs allocated by the RIRs: 47768 Number of 32-bit ASNs visible in the Routing Table: 39191 Prefixes from 32-bit ASNs in the Routing Table: 213788 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: 431 Number of addresses announced to Internet: 3112162304 Equivalent to 185 /8s, 127 /16s and 212 /24s Percentage of available address space announced: 84.1 Percentage of allocated address space announced: 84.1 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: 330346 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 269967 Total APNIC prefixes after maximum aggregation: 80129 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 259610 Unique aggregates announced from the APNIC address blocks: 105974 APNIC Region origin ASes present in the Internet Routing Table: 14840 APNIC Prefixes per ASN: 17.49 APNIC Region origin ASes announcing only one prefix: 4529 APNIC Region transit ASes present in the Internet Routing Table: 1984 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: 10398 Number of APNIC addresses announced to Internet: 751542272 Equivalent to 44 /8s, 203 /16s and 160 /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: 299415 Total ARIN prefixes after maximum aggregation: 134894 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 300353 Unique aggregates announced from the ARIN address blocks: 144652 ARIN Region origin ASes present in the Internet Routing Table: 19365 ARIN Prefixes per ASN: 15.51 ARIN Region origin ASes announcing only one prefix: 7103 ARIN Region transit ASes present in the Internet Routing Table: 1986 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: 5386 Number of ARIN addresses announced to Internet: 1352886016 Equivalent to 80 /8s, 163 /16s and 103 /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: 280894 Total RIPE prefixes after maximum aggregation: 139067 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 280899 Unique aggregates announced from the RIPE address blocks: 181387 RIPE Region origin ASes present in the Internet Routing Table: 29102 RIPE Prefixes per ASN: 9.65 RIPE Region origin ASes announcing only one prefix: 12105 RIPE Region transit ASes present in the Internet Routing Table: 4036 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12783 Number of RIPE addresses announced to Internet: 732974080 Equivalent to 43 /8s, 176 /16s and 76 /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: 125179 Total LACNIC prefixes after maximum aggregation: 30410 LACNIC Deaggregation factor: 4.12 Prefixes being announced from the LACNIC address blocks: 121233 Unique aggregates announced from the LACNIC address blocks: 49509 LACNIC Region origin ASes present in the Internet Routing Table: 11309 LACNIC Prefixes per ASN: 10.72 LACNIC Region origin ASes announcing only one prefix: 2674 LACNIC Region transit ASes present in the Internet Routing Table: 2564 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: 9284 Number of LACNIC addresses announced to Internet: 170758912 Equivalent to 10 /8s, 45 /16s and 147 /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: 35118 Total AfriNIC prefixes after maximum aggregation: 6889 AfriNIC Deaggregation factor: 5.10 Prefixes being announced from the AfriNIC address blocks: 49010 Unique aggregates announced from the AfriNIC address blocks: 16496 AfriNIC Region origin ASes present in the Internet Routing Table: 1979 AfriNIC Prefixes per ASN: 24.77 AfriNIC Region origin ASes announcing only one prefix: 720 AfriNIC Region transit ASes present in the Internet Routing Table: 381 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: 1340 Number of AfriNIC addresses announced to Internet: 103775488 Equivalent to 6 /8s, 47 /16s and 125 /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 13841 8730 117 CHINAMOBILE-CN China Mobile Communication 7545 6128 834 592 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4479 536 313 BBIL-AP BHARTI Airtel Ltd., IN 18403 4396 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 3979 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3715 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3298 1868 98 VNPT-AS-VN VNPT Corp, VN 56046 3163 827 180 CMNET-JIANGSU-AP China Mobile communicati 24560 2932 863 503 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 9304 2476 513 1592 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 14352 41085 5384 AMAZON-02, US 11492 4773 322 789 CABLEONE, US 22773 4305 3086 367 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3860 286 85 VIASAT-SP-BACKBONE, US 6327 3684 1320 82 SHAW, CA 396982 3277 4825 468 GOOGLE-CLOUD-PLATFORM, US 749 3219 54766 2470 DNIC-AS-00749, US 4155 3129 242 1751 USDA-1, US 16625 3007 1281 2195 AKAMAI-AS, US 174 2916 8765 814 COGENT-174, 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 7375 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 20940 4033 3395 126 AKAMAI-ASN1, NL 9009 3976 376 2259 M247, RO 12389 3140 2315 867 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2503 177 1811 CDNEXT, GB 34984 2415 363 576 TELLCOM-AS, TR 203020 1722 206 1003 HOSTROYALE, IN 8452 1668 1852 13 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 12432 3291 573 UNINET, MX 10620 3480 468 1088 Telmex Colombia S.A., CO 13999 2511 510 349 Mega Cable, S.A. de C.V., MX 11830 1990 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 1280 371 23 Telefonica del Peru S.A.A., PE 11664 1259 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1064 71 367 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1010 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 1883 630 32 RAYA-AS, EG 36992 1513 1498 386 ETISALAT-MISR, EG 24863 1261 389 20 LINKdotNET-AS, EG 36903 1250 554 97 MT-MPLS, MA 29571 1189 102 52 ORANGE-COTE-IVOIRE, CI 36935 1117 522 45 Vodafone-, EG 37069 1085 1096 13 MOBINIL, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 573 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 14352 41085 5384 AMAZON-02, US 9808 13841 8730 117 CHINAMOBILE-CN China Mobile Communication 8151 12432 3291 573 UNINET, MX 12479 7375 1711 149 UNI2-AS, ES 7545 6128 834 592 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 298 66 ALJAWWALSTC-AS, SA 11492 4773 322 789 CABLEONE, US 9498 4479 536 313 BBIL-AP BHARTI Airtel Ltd., IN 18403 4396 347 24 FPT-AS-AP FPT Telecom Company, VN 22773 4305 3086 367 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 13841 13724 CHINAMOBILE-CN China Mobile Communications Grou 8151 12432 11859 UNINET, MX 12479 7375 7226 UNI2-AS, ES 7545 6128 5536 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4767 ALJAWWALSTC-AS, SA 18403 4396 4372 FPT-AS-AP FPT Telecom Company, VN 9498 4479 4166 BBIL-AP BHARTI Airtel Ltd., IN 11492 4773 3984 CABLEONE, US 7552 3979 3951 VIETEL-AS-AP Viettel Group, VN 22773 4305 3938 ASN-CXA-ALL-CCI-22773-RDC, US 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 54739 UNALLOCATED 8.44.198.0/23 13335 CLOUDFLARENET, US 397015 UNALLOCATED 8.44.246.0/24 12025 IMDC-AS12025, US 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174, US Complete listing at https://bgp.nsrc.org/REN/AARNET/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 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 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 /12:300 /13:583 /14:1204 /15:2128 /16:13779 /17:8216 /18:13492 /19:24713 /20:44330 /21:52013 /22:112849 /23:104635 /24:633130 /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 6642 12432 UNINET, MX 12479 6327 7375 UNI2-AS, ES 11492 3586 4773 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3473 3684 SHAW, CA 7155 2819 3860 VIASAT-SP-BACKBONE, US 22773 2650 4305 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2422 14352 AMAZON-02, US 30036 2294 2634 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2215 3480 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 2:1565 3:945 4:10 5:4865 6:170 7:6 8:1517 9:6 11:172 12:1239 13:552 14:2650 15:402 16:298 17:385 18:905 20:579 21:4 22:188 23:8083 24:2597 25:2 27:2805 29:19 31:3334 32:31 33:1 34:81 35:275 36:4472 37:4558 38:9536 39:1107 40:473 41:4282 42:1968 43:2766 44:401 45:19149 46:5200 47:369 49:2094 50:2046 51:596 52:1627 54:357 55:1104 56:11 57:287 58:2283 59:1296 60:1189 61:2918 62:3080 63:1761 64:5817 65:2133 66:5597 67:3155 68:1466 69:4115 70:1033 71:636 72:2974 74:2861 75:1512 76:598 77:2768 78:1917 79:1749 80:2248 81:2144 82:3487 83:1475 84:1993 85:3579 86:1099 87:2145 88:1361 89:4518 90:815 91:8396 92:2815 93:2987 94:4161 95:4519 96:1490 97:313 98:949 99:751 100:71 101:1220 102:4219 103:32281 104:5450 105:785 106:896 107:2795 108:1203 109:4235 110:2249 111:3816 112:2704 113:1852 114:2072 115:2286 116:2087 117:3042 118:3032 119:1998 120:2305 121:1490 122:2809 123:2270 124:1656 125:2883 126:124 128:1603 129:961 130:1437 131:2153 132:794 133:460 134:1625 135:364 136:1494 137:1327 138:2819 139:1591 140:1643 141:1559 142:2175 143:2087 144:1297 145:629 146:2188 147:2137 148:2757 149:2896 150:1288 151:2616 152:2220 153:645 154:7905 155:2195 156:3162 157:2008 158:1450 159:2606 160:3648 161:2005 162:3961 163:2300 164:1954 165:2561 166:1525 167:2120 168:3812 169:779 170:5394 171:1060 172:4479 173:3424 174:905 175:1343 176:3755 177:4743 178:4316 179:2278 180:2737 181:4285 182:3754 183:2558 184:2090 185:21683 186:5370 187:4695 188:4387 189:4409 190:9722 191:1555 192:11419 193:9488 194:7831 195:5571 196:3266 197:3235 198:6261 199:8809 200:8196 201:6359 202:10485 203:10636 204:4641 205:3689 206:4434 207:3860 208:4268 209:5423 210:4744 211:2688 212:4897 213:3924 214:1038 215:53 216:7170 217:3354 218:1579 219:398 220:2195 221:1251 222:756 223:3071 End of report