IPv4 R&E Routing Table Report 21:10 GMT Tue 02 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: 1017923 Prefixes after maximum aggregation (per Origin AS): 393479 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 504361 Number of IPv4 prefixes with a valid ROA: 596614 Number of IPv4 prefixes with an invalid ROA: 124 Number of IPv4 prefixes with no ROA: 421185 Total ASes present in the Internet Routing Table: 77568 Prefixes per ASN: 13.12 Origin-only ASes present in the Internet Routing Table: 66387 Origin ASes announcing only one prefix: 27106 Transit ASes present in the Internet Routing Table: 11181 Transit-only ASes present in the Internet Routing Table: 568 Paths with bogon ASNs present in the IPv4 Routing Table: 7 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 68 Max AS path prepend of ASN (269326) 61 Prefixes from unregistered ASNs in the Routing Table: 946 Number of instances of unregistered ASNs: 976 Number of 32-bit ASNs allocated by the RIRs: 48116 Number of 32-bit ASNs visible in the Routing Table: 39389 Prefixes from 32-bit ASNs in the Routing Table: 217143 Number of bogon 32-bit ASNs visible in the Routing Table: 72 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 448 Number of addresses announced to Internet: 3100656640 Equivalent to 184 /8s, 208 /16s and 68 /24s Percentage of available address space announced: 83.8 Percentage of allocated address space announced: 83.8 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: 332992 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 274290 Total APNIC prefixes after maximum aggregation: 81015 APNIC Deaggregation factor: 3.39 Prefixes being announced from the APNIC address blocks: 261870 Unique aggregates announced from the APNIC address blocks: 106283 APNIC Region origin ASes present in the Internet Routing Table: 14893 APNIC Prefixes per ASN: 17.58 APNIC Region origin ASes announcing only one prefix: 4528 APNIC Region transit ASes present in the Internet Routing Table: 2006 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 39 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10459 Number of APNIC addresses announced to Internet: 752905216 Equivalent to 44 /8s, 224 /16s and 108 /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: 299011 Total ARIN prefixes after maximum aggregation: 134546 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 298674 Unique aggregates announced from the ARIN address blocks: 145621 ARIN Region origin ASes present in the Internet Routing Table: 19388 ARIN Prefixes per ASN: 15.41 ARIN Region origin ASes announcing only one prefix: 7107 ARIN Region transit ASes present in the Internet Routing Table: 1987 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: 5425 Number of ARIN addresses announced to Internet: 1337582080 Equivalent to 79 /8s, 185 /16s and 226 /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: 282520 Total RIPE prefixes after maximum aggregation: 139898 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 283447 Unique aggregates announced from the RIPE address blocks: 183874 RIPE Region origin ASes present in the Internet Routing Table: 29101 RIPE Prefixes per ASN: 9.74 RIPE Region origin ASes announcing only one prefix: 12061 RIPE Region transit ASes present in the Internet Routing Table: 4045 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 46 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12838 Number of RIPE addresses announced to Internet: 735962880 Equivalent to 43 /8s, 221 /16s and 231 /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: 125712 Total LACNIC prefixes after maximum aggregation: 30488 LACNIC Deaggregation factor: 4.12 Prefixes being announced from the LACNIC address blocks: 121692 Unique aggregates announced from the LACNIC address blocks: 49695 LACNIC Region origin ASes present in the Internet Routing Table: 11314 LACNIC Prefixes per ASN: 10.76 LACNIC Region origin ASes announcing only one prefix: 2672 LACNIC Region transit ASes present in the Internet Routing Table: 2562 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: 9311 Number of LACNIC addresses announced to Internet: 170733056 Equivalent to 10 /8s, 45 /16s and 46 /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: 35444 Total AfriNIC prefixes after maximum aggregation: 6893 AfriNIC Deaggregation factor: 5.14 Prefixes being announced from the AfriNIC address blocks: 51791 Unique aggregates announced from the AfriNIC address blocks: 18504 AfriNIC Region origin ASes present in the Internet Routing Table: 1994 AfriNIC Prefixes per ASN: 25.97 AfriNIC Region origin ASes announcing only one prefix: 738 AfriNIC Region transit ASes present in the Internet Routing Table: 385 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: 1356 Number of AfriNIC addresses announced to Internet: 103241984 Equivalent to 6 /8s, 39 /16s and 89 /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 13498 8730 117 CHINAMOBILE-CN China Mobile Communication 7545 6039 832 593 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4589 541 336 BBIL-AP BHARTI Airtel Ltd., IN 18403 4397 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4009 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3712 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3330 827 181 CMNET-JIANGSU-AP China Mobile communicati 45899 3315 1868 98 VNPT-AS-VN VNPT Corp, VN 24560 2946 865 498 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 140292 2514 275 1936 CHINATELECOM-JIANGSU-SUZHOU-5G-NETWORK CH 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 14244 37207 5392 AMAZON-02, US 22773 4779 3115 368 ASN-CXA-ALL-CCI-22773-RDC, US 11492 4715 313 913 CABLEONE, US 7155 3861 286 85 VIASAT-SP-BACKBONE, US 6327 3690 1320 83 SHAW, CA 396982 3304 4861 482 GOOGLE-CLOUD-PLATFORM, US 749 3216 54766 2467 DNIC-AS-00749, US 16625 2994 1286 2184 AKAMAI-AS, US 36352 2818 231 917 AS-COLOCROSSING, US 30036 2656 366 331 MEDIACOM-ENTERPRISE-BUSINESS, 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 7281 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 9009 4010 376 2280 M247, RO 20940 3986 3395 126 AKAMAI-ASN1, NL 12389 3147 2317 871 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2537 180 1835 CDNEXT, GB 34984 2423 363 577 TELLCOM-AS, TR 8452 1700 1852 14 TE-AS TE-AS, EG 203020 1614 241 782 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 12679 3301 571 UNINET, MX 10620 3458 463 1100 Telmex Colombia S.A., CO 13999 2507 509 348 Mega Cable, S.A. de C.V., MX 11830 1992 369 65 Instituto Costarricense de Electricidad y 28573 1372 2432 263 Claro NXT Telecomunicacoes Ltda, BR 11664 1348 278 33 Techtel LMDS Comunicaciones Interactivas 3816 1346 781 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1264 371 22 Telefonica del Peru S.A.A., PE 22884 1057 70 364 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1017 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 1921 368 12 RAYA-AS, EG 36992 1680 1509 399 ETISALAT-MISR, EG 24863 1262 389 20 LINKdotNET-AS, EG 36903 1250 554 97 MT-MPLS, MA 37069 1085 1096 13 MOBINIL, EG 29571 1072 94 22 ORANGE-COTE-IVOIRE, CI 36935 1055 522 33 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 563 82 3 KENET-AS, KE 15399 545 57 58 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 14244 37207 5392 AMAZON-02, US 9808 13498 8730 117 CHINAMOBILE-CN China Mobile Communication 8151 12679 3301 571 UNINET, MX 12479 7281 1711 149 UNI2-AS, ES 7545 6039 832 593 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 298 66 ALJAWWALSTC-AS, SA 22773 4779 3115 368 ASN-CXA-ALL-CCI-22773-RDC, US 11492 4715 313 913 CABLEONE, US 9498 4589 541 336 BBIL-AP BHARTI Airtel Ltd., IN 18403 4397 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 13498 13381 CHINAMOBILE-CN China Mobile Communications Grou 8151 12679 12108 UNINET, MX 12479 7281 7132 UNI2-AS, ES 7545 6039 5446 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4767 ALJAWWALSTC-AS, SA 22773 4779 4411 ASN-CXA-ALL-CCI-22773-RDC, US 18403 4397 4373 FPT-AS-AP FPT Telecom Company, VN 9498 4589 4253 BBIL-AP BHARTI Airtel Ltd., IN 7552 4009 3981 VIETEL-AS-AP Viettel Group, VN 20940 3986 3860 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 54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, 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 7018 ATT-INTERNET4, 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 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 23.137.48.0/24 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 23.141.0.0/24 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 /11:94 /12:298 /13:582 /14:1203 /15:2095 /16:13682 /17:8229 /18:13482 /19:24778 /20:44592 /21:52072 /22:113053 /23:105288 /24:638403 /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 6860 12679 UNINET, MX 12479 6218 7281 UNI2-AS, ES 11492 3559 4715 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3478 3690 SHAW, CA 22773 3052 4779 ASN-CXA-ALL-CCI-22773-RDC, US 7155 2820 3861 VIASAT-SP-BACKBONE, US 16509 2428 14244 AMAZON-02, US 30036 2313 2656 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2213 3458 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) ---------------------------------------------- 1:2442 2:1573 3:973 4:10 5:4939 6:190 7:6 8:1500 9:6 11:172 12:1231 13:571 14:2612 15:414 16:303 17:388 18:912 20:586 21:4 22:188 23:8127 24:2554 25:2 27:2811 29:19 31:3393 32:31 33:1 34:81 35:286 36:4581 37:4564 38:9359 39:1186 40:446 41:4423 42:1957 43:2839 44:402 45:19499 46:5101 47:386 49:2153 50:2051 51:597 52:1567 54:289 55:1107 56:11 57:303 58:2294 59:1311 60:1168 61:3041 62:3095 63:1746 64:5952 65:2127 66:5934 67:3250 68:1496 69:4184 70:1024 71:627 72:3038 74:2932 75:1515 76:599 77:2772 78:1917 79:1782 80:2299 81:2097 82:3827 83:1465 84:2017 85:3646 86:1103 87:2155 88:1344 89:4573 90:838 91:8440 92:2841 93:3015 94:4221 95:4566 96:1451 97:312 98:955 99:773 100:68 101:1196 102:4317 103:32213 104:5501 105:795 106:906 107:2806 108:1200 109:4246 110:2292 111:3902 112:2781 113:1922 114:2096 115:2282 116:2141 117:3122 118:3036 119:2051 120:2375 121:1512 122:2953 123:2298 124:1602 125:2901 126:125 128:1616 129:965 130:1518 131:2265 132:770 133:462 134:1605 135:482 136:1503 137:1340 138:2896 139:1604 140:1724 141:1550 142:2346 143:2138 144:1351 145:630 146:2189 147:2150 148:2790 149:2881 150:1300 151:2634 152:2280 153:789 154:9162 155:2259 156:4235 157:2230 158:1457 159:2681 160:3750 161:1992 162:3997 163:2332 164:1964 165:2602 166:1299 167:2136 168:3886 169:798 170:5455 171:1116 172:4502 173:3417 174:907 175:1341 176:3777 177:4700 178:4306 179:2304 180:2836 181:4298 182:3837 183:2603 184:2060 185:21719 186:5510 187:4764 188:4433 189:4496 190:9704 191:1570 192:11454 193:9509 194:7856 195:5617 196:3275 197:3191 198:6233 199:6094 200:8213 201:6392 202:10451 203:10586 204:4645 205:3722 206:4426 207:3913 208:4270 209:5450 210:4757 211:2676 212:4896 213:4016 214:1045 215:53 216:7131 217:3385 218:1584 219:404 220:2190 221:1285 222:776 223:3168 End of report