IPv4 R&E Routing Table Report 21:10 GMT Tue 30 Dec, 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: 1023571 Prefixes after maximum aggregation (per Origin AS): 394204 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 506166 Number of IPv4 prefixes with a valid ROA: 609440 Number of IPv4 prefixes with an invalid ROA: 123 Number of IPv4 prefixes with no ROA: 414008 Total ASes present in the Internet Routing Table: 77701 Prefixes per ASN: 13.17 Origin-only ASes present in the Internet Routing Table: 66482 Origin ASes announcing only one prefix: 27132 Transit ASes present in the Internet Routing Table: 11219 Transit-only ASes present in the Internet Routing Table: 567 Paths with bogon ASNs present in the IPv4 Routing Table: 16 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 68 Max AS path prepend of ASN (269326) 61 Prefixes from unregistered ASNs in the Routing Table: 938 Number of instances of unregistered ASNs: 978 Number of 32-bit ASNs allocated by the RIRs: 48328 Number of 32-bit ASNs visible in the Routing Table: 39554 Prefixes from 32-bit ASNs in the Routing Table: 219680 Number of bogon 32-bit ASNs visible in the Routing Table: 90 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 619 Number of addresses announced to Internet: 3104404480 Equivalent to 185 /8s, 9 /16s and 116 /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: 334216 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 277382 Total APNIC prefixes after maximum aggregation: 81013 APNIC Deaggregation factor: 3.42 Prefixes being announced from the APNIC address blocks: 263749 Unique aggregates announced from the APNIC address blocks: 106513 APNIC Region origin ASes present in the Internet Routing Table: 14955 APNIC Prefixes per ASN: 17.64 APNIC Region origin ASes announcing only one prefix: 4556 APNIC Region transit ASes present in the Internet Routing Table: 2007 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: 10522 Number of APNIC addresses announced to Internet: 753024000 Equivalent to 44 /8s, 226 /16s and 60 /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: 300165 Total ARIN prefixes after maximum aggregation: 134972 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 300423 Unique aggregates announced from the ARIN address blocks: 145651 ARIN Region origin ASes present in the Internet Routing Table: 19396 ARIN Prefixes per ASN: 15.49 ARIN Region origin ASes announcing only one prefix: 7072 ARIN Region transit ASes present in the Internet Routing Table: 1990 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: 5428 Number of ARIN addresses announced to Internet: 1342198784 Equivalent to 80 /8s, 0 /16s and 84 /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: 283250 Total RIPE prefixes after maximum aggregation: 140105 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 284299 Unique aggregates announced from the RIPE address blocks: 184286 RIPE Region origin ASes present in the Internet Routing Table: 29127 RIPE Prefixes per ASN: 9.76 RIPE Region origin ASes announcing only one prefix: 12071 RIPE Region transit ASes present in the Internet Routing Table: 4058 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 45 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12901 Number of RIPE addresses announced to Internet: 735230208 Equivalent to 43 /8s, 210 /16s and 185 /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: 125665 Total LACNIC prefixes after maximum aggregation: 30565 LACNIC Deaggregation factor: 4.11 Prefixes being announced from the LACNIC address blocks: 121465 Unique aggregates announced from the LACNIC address blocks: 49810 LACNIC Region origin ASes present in the Internet Routing Table: 11338 LACNIC Prefixes per ASN: 10.71 LACNIC Region origin ASes announcing only one prefix: 2694 LACNIC Region transit ASes present in the Internet Routing Table: 2576 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 68 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9337 Number of LACNIC addresses announced to Internet: 170416128 Equivalent to 10 /8s, 40 /16s and 88 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-275868 + 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: 36171 Total AfriNIC prefixes after maximum aggregation: 6911 AfriNIC Deaggregation factor: 5.23 Prefixes being announced from the AfriNIC address blocks: 53015 Unique aggregates announced from the AfriNIC address blocks: 19419 AfriNIC Region origin ASes present in the Internet Routing Table: 2003 AfriNIC Prefixes per ASN: 26.47 AfriNIC Region origin ASes announcing only one prefix: 739 AfriNIC Region transit ASes present in the Internet Routing Table: 386 Average AfriNIC Region AS path length visible: 5.1 Max AfriNIC Region AS path length visible: 64 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1366 Number of AfriNIC addresses announced to Internet: 103221760 Equivalent to 6 /8s, 39 /16s and 10 /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 13410 8729 119 CHINAMOBILE-CN China Mobile Communication 7545 6035 834 581 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4650 542 334 BBIL-AP BHARTI Airtel Ltd., IN 18403 4334 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4052 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3729 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3396 831 182 CMNET-JIANGSU-AP China Mobile communicati 45899 3325 1868 97 VNPT-AS-VN VNPT Corp, VN 17561 3182 200 637 LCS-AS-AP LARUS Limited, HK 24560 2956 865 496 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 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 14008 38462 5451 AMAZON-02, US 22773 4748 3113 375 ASN-CXA-ALL-CCI-22773-RDC, US 11492 4691 311 946 CABLEONE, US 7155 3861 286 85 VIASAT-SP-BACKBONE, US 6327 3689 1320 82 SHAW, CA 396982 3318 4867 492 GOOGLE-CLOUD-PLATFORM, US 749 3143 54729 2394 DNIC-AS-00749, US 174 2995 8768 860 COGENT-174, US 16625 2970 1278 2177 AKAMAI-AS, US 36352 2697 222 897 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 7277 1711 149 UNI2-AS, ES 39891 4901 302 70 ALJAWWALSTC-AS, SA 9009 3940 367 2269 M247, RO 20940 3940 3393 112 AKAMAI-ASN1, NL 12389 3152 2317 871 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2564 182 1863 CDNEXT, GB 34984 2421 371 574 TELLCOM-AS, TR 8452 1703 1852 14 TE-AS TE-AS, EG 203020 1617 242 783 HOSTROYALE, IN 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 12646 3277 591 UNINET, MX 10620 3434 457 1108 Telmex Colombia S.A., CO 13999 2488 506 351 Mega Cable, S.A. de C.V., MX 11830 1992 369 65 Instituto Costarricense de Electricidad y 11664 1371 278 31 Techtel LMDS Comunicaciones Interactivas 28573 1370 2430 270 Claro NXT Telecomunicacoes Ltda, BR 3816 1339 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1260 371 22 Telefonica del Peru S.A.A., PE 22884 1057 67 359 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1013 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 1982 638 33 RAYA-AS, EG 36992 1850 1536 342 ETISALAT-MISR, EG 24863 1265 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 37069 1099 1084 13 MOBINIL, EG 36935 1088 522 33 Vodafone-, EG 29571 1072 94 22 ORANGE-COTE-IVOIRE, CI 20011 580 154 212 NTT-DATA-Inc, ZA 36914 556 82 3 KENET-AS, KE 328608 545 52 159 Africa-on-Cloud-AS, ZA 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 14008 38462 5451 AMAZON-02, US 9808 13410 8729 119 CHINAMOBILE-CN China Mobile Communication 8151 12646 3277 591 UNINET, MX 12479 7277 1711 149 UNI2-AS, ES 7545 6035 834 581 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4901 302 70 ALJAWWALSTC-AS, SA 22773 4748 3113 375 ASN-CXA-ALL-CCI-22773-RDC, US 11492 4691 311 946 CABLEONE, US 9498 4650 542 334 BBIL-AP BHARTI Airtel Ltd., IN 18403 4334 347 24 FPT-AS-AP FPT Telecom Company, VN 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 13410 13291 CHINAMOBILE-CN China Mobile Communications Grou 8151 12646 12055 UNINET, MX 12479 7277 7128 UNI2-AS, ES 7545 6035 5454 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4901 4831 ALJAWWALSTC-AS, SA 22773 4748 4373 ASN-CXA-ALL-CCI-22773-RDC, US 9498 4650 4316 BBIL-AP BHARTI Airtel Ltd., IN 18403 4334 4310 FPT-AS-AP FPT Telecom Company, VN 7552 4052 4023 VIETEL-AS-AP Viettel Group, VN 20940 3940 3828 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 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 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 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174, US 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US 21861 UNALLOCATED 12.37.59.0/24 7018 ATT-INTERNET4, US Complete listing at https://bgp.nsrc.org/REN/AARNET/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.137.48.0/24 Origin: 16904 ARVIG-16904, US 23.137.48.0/24 Transit: 3257 GTT-BACKBONE GTT, US 23.137.200.0/24 Origin: 16276 OVH, FR 23.137.200.0/24 Transit: 7575 AARNET-AS-AP Australian Academic and Res 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 /12:299 /13:581 /14:1203 /15:2096 /16:13683 /17:8238 /18:13523 /19:24847 /20:44824 /21:52120 /22:113200 /23:105915 /24:642877 /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 6851 12646 UNINET, MX 12479 6208 7277 UNI2-AS, ES 39891 3587 4901 ALJAWWALSTC-AS, SA 11492 3536 4691 CABLEONE, US 6327 3478 3689 SHAW, CA 22773 3053 4748 ASN-CXA-ALL-CCI-22773-RDC, US 7155 2820 3861 VIASAT-SP-BACKBONE, US 16509 2454 14008 AMAZON-02, US 30036 2314 2656 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2214 3434 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) ---------------------------------------------- 1:2451 2:1550 3:979 4:10 5:4997 6:187 7:6 8:1507 9:14 11:172 12:1234 13:601 14:2617 15:418 16:270 17:383 18:914 20:590 21:4 22:188 23:8150 24:2610 25:2 27:2824 29:19 31:3389 32:31 33:1 34:81 35:287 36:4629 37:4518 38:9906 39:1223 40:438 41:4477 42:1922 43:2904 44:414 45:19584 46:5070 47:396 49:2156 50:2061 51:597 52:1250 54:225 55:1116 56:11 57:310 58:2289 59:1339 60:1171 61:3059 62:3092 63:1762 64:6004 65:2128 66:5936 67:3256 68:1503 69:4208 70:1020 71:625 72:3076 74:2963 75:1521 76:599 77:2759 78:1929 79:1794 80:2304 81:2086 82:3942 83:1476 84:2031 85:3665 86:1099 87:2207 88:1358 89:4629 90:833 91:8434 92:2836 93:3027 94:4262 95:4561 96:1469 97:312 98:958 99:782 100:68 101:1305 102:4339 103:32328 104:5466 105:789 106:920 107:2807 108:1215 109:4267 110:2302 111:4004 112:2833 113:1922 114:2095 115:2311 116:2155 117:3181 118:2979 119:2082 120:2428 121:1519 122:2953 123:2300 124:1605 125:2940 126:125 128:1613 129:961 130:1560 131:2276 132:766 133:462 134:1640 135:539 136:1501 137:1412 138:2988 139:1604 140:1774 141:1564 142:2435 143:2137 144:1468 145:626 146:2193 147:2148 148:2781 149:2930 150:1315 151:2589 152:2258 153:900 154:9528 155:2285 156:4748 157:2255 158:1482 159:2734 160:3743 161:1997 162:3991 163:2336 164:1962 165:2644 166:1303 167:2198 168:3903 169:816 170:5460 171:1118 172:4546 173:3422 174:901 175:1341 176:3783 177:4724 178:4324 179:2240 180:2830 181:4348 182:3869 183:2677 184:2054 185:21771 186:5519 187:4781 188:4540 189:4460 190:9653 191:1533 192:11444 193:9524 194:7868 195:5653 196:3264 197:3186 198:6232 199:6110 200:8170 201:6384 202:10519 203:10627 204:4697 205:3782 206:4421 207:3948 208:4379 209:5504 210:4778 211:2680 212:4939 213:4040 214:1065 215:54 216:7125 217:3467 218:1613 219:409 220:2186 221:1301 222:777 223:3237 End of report