IPv4 R&E Routing Table Report 21:10 GMT Sun 05 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: 1005188 Prefixes after maximum aggregation (per Origin AS): 389798 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 495745 Number of IPv4 prefixes with a valid ROA: 575067 Number of IPv4 prefixes with an invalid ROA: 145 Number of IPv4 prefixes with no ROA: 429975 Total ASes present in the Internet Routing Table: 77334 Prefixes per ASN: 13.00 Origin-only ASes present in the Internet Routing Table: 66225 Origin ASes announcing only one prefix: 27058 Transit ASes present in the Internet Routing Table: 11109 Transit-only ASes present in the Internet Routing Table: 556 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 ( 59958) 48 Prefixes from unregistered ASNs in the Routing Table: 969 Number of instances of unregistered ASNs: 998 Number of 32-bit ASNs allocated by the RIRs: 47653 Number of 32-bit ASNs visible in the Routing Table: 39050 Prefixes from 32-bit ASNs in the Routing Table: 211181 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: 426 Number of addresses announced to Internet: 3110319104 Equivalent to 185 /8s, 99 /16s and 180 /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: 327600 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 268641 Total APNIC prefixes after maximum aggregation: 79643 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 258460 Unique aggregates announced from the APNIC address blocks: 105760 APNIC Region origin ASes present in the Internet Routing Table: 14803 APNIC Prefixes per ASN: 17.46 APNIC Region origin ASes announcing only one prefix: 4512 APNIC Region transit ASes present in the Internet Routing Table: 1980 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: 10359 Number of APNIC addresses announced to Internet: 750987264 Equivalent to 44 /8s, 195 /16s and 40 /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: 295452 Total ARIN prefixes after maximum aggregation: 133877 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 296927 Unique aggregates announced from the ARIN address blocks: 143021 ARIN Region origin ASes present in the Internet Routing Table: 19325 ARIN Prefixes per ASN: 15.36 ARIN Region origin ASes announcing only one prefix: 7088 ARIN Region transit ASes present in the Internet Routing Table: 1989 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: 5345 Number of ARIN addresses announced to Internet: 1351496960 Equivalent to 80 /8s, 142 /16s and 53 /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: 280086 Total RIPE prefixes after maximum aggregation: 138417 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 279644 Unique aggregates announced from the RIPE address blocks: 180676 RIPE Region origin ASes present in the Internet Routing Table: 29058 RIPE Prefixes per ASN: 9.62 RIPE Region origin ASes announcing only one prefix: 12085 RIPE Region transit ASes present in the Internet Routing Table: 4027 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: 12748 Number of RIPE addresses announced to Internet: 732938240 Equivalent to 43 /8s, 175 /16s and 192 /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: 125083 Total LACNIC prefixes after maximum aggregation: 30343 LACNIC Deaggregation factor: 4.12 Prefixes being announced from the LACNIC address blocks: 121291 Unique aggregates announced from the LACNIC address blocks: 49490 LACNIC Region origin ASes present in the Internet Routing Table: 11296 LACNIC Prefixes per ASN: 10.74 LACNIC Region origin ASes announcing only one prefix: 2656 LACNIC Region transit ASes present in the Internet Routing Table: 2528 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 38 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9265 Number of LACNIC addresses announced to Internet: 170790400 Equivalent to 10 /8s, 46 /16s and 14 /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: 34957 Total AfriNIC prefixes after maximum aggregation: 6861 AfriNIC Deaggregation factor: 5.10 Prefixes being announced from the AfriNIC address blocks: 48439 Unique aggregates announced from the AfriNIC address blocks: 16418 AfriNIC Region origin ASes present in the Internet Routing Table: 1968 AfriNIC Prefixes per ASN: 24.61 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: 5.0 Max AfriNIC Region AS path length visible: 42 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1333 Number of AfriNIC addresses announced to Internet: 103873280 Equivalent to 6 /8s, 48 /16s and 251 /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 13670 8730 116 CHINAMOBILE-CN China Mobile Communication 7545 6184 835 605 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4520 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4470 536 312 BBIL-AP BHARTI Airtel Ltd., IN 7552 3958 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3725 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3297 1868 99 VNPT-AS-VN VNPT Corp, VN 56046 3116 827 180 CMNET-JIANGSU-AP China Mobile communicati 24560 2927 863 499 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 9304 2359 505 1512 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 14273 40990 5371 AMAZON-02, US 11492 4752 320 794 CABLEONE, US 22773 3975 3065 336 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3678 1320 82 SHAW, CA 396982 3268 4823 463 GOOGLE-CLOUD-PLATFORM, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3085 239 1714 USDA-1, US 174 3054 8766 793 COGENT-174, US 16625 3047 1303 2216 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 7428 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 20940 4041 3395 126 AKAMAI-ASN1, NL 9009 3954 372 2235 M247, RO 12389 3124 2315 867 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2465 176 1789 CDNEXT, GB 34984 2415 363 576 TELLCOM-AS, TR 203020 1851 200 900 HOSTROYALE, IN 8452 1647 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 12379 3278 574 UNINET, MX 10620 3500 474 1069 Telmex Colombia S.A., CO 13999 2544 511 346 Mega Cable, S.A. de C.V., MX 11830 1989 369 64 Instituto Costarricense de Electricidad y 28573 1369 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1354 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1230 278 32 Techtel LMDS Comunicaciones Interactivas 6147 1178 371 23 Telefonica del Peru S.A.A., PE 22884 1067 71 352 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 1770 616 28 RAYA-AS, EG 36992 1508 1498 383 ETISALAT-MISR, EG 36903 1250 554 97 MT-MPLS, MA 24863 1236 389 20 LINKdotNET-AS, EG 29571 1188 102 53 ORANGE-COTE-IVOIRE, CI 37069 1085 1096 13 MOBINIL, EG 36935 950 520 42 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 570 82 3 KENET-AS, KE 15399 548 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 14273 40990 5371 AMAZON-02, US 9808 13670 8730 116 CHINAMOBILE-CN China Mobile Communication 8151 12379 3278 574 UNINET, MX 12479 7428 1711 149 UNI2-AS, ES 7545 6184 835 605 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 298 66 ALJAWWALSTC-AS, SA 11492 4752 320 794 CABLEONE, US 18403 4520 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4470 536 312 BBIL-AP BHARTI Airtel Ltd., IN 20940 4041 3395 126 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 13670 13554 CHINAMOBILE-CN China Mobile Communications Grou 8151 12379 11805 UNINET, MX 12479 7428 7279 UNI2-AS, ES 7545 6184 5579 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4767 ALJAWWALSTC-AS, SA 18403 4520 4495 FPT-AS-AP FPT Telecom Company, VN 9498 4470 4158 BBIL-AP BHARTI Airtel Ltd., IN 11492 4752 3958 CABLEONE, US 7552 3958 3930 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 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 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 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 /11:93 /12:301 /13:582 /14:1203 /15:2127 /16:13786 /17:8207 /18:13466 /19:24662 /20:44335 /21:51927 /22:112634 /23:104129 /24:627664 /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 12379 UNINET, MX 12479 6394 7428 UNI2-AS, ES 11492 3565 4752 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3467 3678 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2525 3975 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2381 14273 AMAZON-02, US 30036 2291 2631 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2213 3500 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) ---------------------------------------------- 1:2425 2:1555 3:947 4:10 5:4841 6:169 7:6 8:1527 9:6 11:172 12:1242 13:561 14:2639 15:402 16:304 17:389 18:905 20:574 21:4 22:188 23:7924 24:2699 25:2 27:2805 29:19 31:3353 32:31 33:1 34:81 35:267 36:4442 37:4549 38:9502 39:1089 40:295 41:4374 42:2017 43:2728 44:392 45:18894 46:5204 47:338 49:2021 50:2050 51:594 52:1590 54:358 55:1108 56:11 57:286 58:2259 59:1308 60:1188 61:2916 62:3087 63:1768 64:5659 65:2135 66:4951 67:3114 68:1094 69:3953 70:1036 71:640 72:2970 74:2845 75:1495 76:597 77:2766 78:1918 79:1749 80:2248 81:2120 82:3446 83:1475 84:1991 85:3520 86:1101 87:2133 88:1358 89:4493 90:808 91:8373 92:2779 93:2975 94:4164 95:4476 96:1495 97:310 98:952 99:732 100:71 101:1220 102:4159 103:32275 104:5356 105:777 106:895 107:2663 108:1207 109:4226 110:2247 111:3754 112:2651 113:1850 114:1992 115:2341 116:2076 117:2940 118:3054 119:1978 120:2265 121:1357 122:2820 123:2266 124:1658 125:2882 126:93 128:1605 129:964 130:1286 131:2142 132:789 133:461 134:1612 135:365 136:1492 137:1318 138:2812 139:1607 140:1642 141:1539 142:2039 143:2055 144:1265 145:627 146:2184 147:2129 148:2736 149:2918 150:1273 151:2550 152:2174 153:640 154:7404 155:2054 156:3504 157:1997 158:1427 159:2597 160:3579 161:1995 162:3945 163:2297 164:2132 165:2551 166:1559 167:2098 168:3827 169:782 170:5353 171:1026 172:4256 173:3381 174:909 175:1346 176:3805 177:4745 178:4256 179:2273 180:2619 181:4244 182:3727 183:2536 184:2071 185:21670 186:5369 187:4704 188:4314 189:4383 190:9704 191:1538 192:11412 193:9483 194:7794 195:5574 196:3281 197:3243 198:6245 199:8747 200:8229 201:6355 202:10445 203:10590 204:4597 205:3688 206:4438 207:3711 208:4272 209:5359 210:4770 211:2679 212:4802 213:3894 214:1035 215:52 216:6904 217:3350 218:1566 219:393 220:2190 221:1236 222:751 223:3018 End of report