IPv4 R&E Routing Table Report 21:10 GMT Mon 06 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: 1005219 Prefixes after maximum aggregation (per Origin AS): 389871 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 495842 Number of IPv4 prefixes with a valid ROA: 575328 Number of IPv4 prefixes with an invalid ROA: 145 Number of IPv4 prefixes with no ROA: 429746 Total ASes present in the Internet Routing Table: 77363 Prefixes per ASN: 12.99 Origin-only ASes present in the Internet Routing Table: 66238 Origin ASes announcing only one prefix: 27073 Transit ASes present in the Internet Routing Table: 11125 Transit-only ASes present in the Internet Routing Table: 563 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: 968 Number of instances of unregistered ASNs: 997 Number of 32-bit ASNs allocated by the RIRs: 47653 Number of 32-bit ASNs visible in the Routing Table: 39069 Prefixes from 32-bit ASNs in the Routing Table: 211216 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: 3110518272 Equivalent to 185 /8s, 102 /16s and 190 /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: 327784 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 268661 Total APNIC prefixes after maximum aggregation: 79693 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 258462 Unique aggregates announced from the APNIC address blocks: 105787 APNIC Region origin ASes present in the Internet Routing Table: 14816 APNIC Prefixes per ASN: 17.44 APNIC Region origin ASes announcing only one prefix: 4519 APNIC Region transit ASes present in the Internet Routing Table: 1983 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: 10368 Number of APNIC addresses announced to Internet: 750984960 Equivalent to 44 /8s, 195 /16s and 31 /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: 295436 Total ARIN prefixes after maximum aggregation: 133919 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 296923 Unique aggregates announced from the ARIN address blocks: 143052 ARIN Region origin ASes present in the Internet Routing Table: 19326 ARIN Prefixes per ASN: 15.36 ARIN Region origin ASes announcing only one prefix: 7086 ARIN Region transit ASes present in the Internet Routing Table: 1991 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: 5343 Number of ARIN addresses announced to Internet: 1351592704 Equivalent to 80 /8s, 143 /16s and 171 /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: 280177 Total RIPE prefixes after maximum aggregation: 138447 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 279793 Unique aggregates announced from the RIPE address blocks: 180721 RIPE Region origin ASes present in the Internet Routing Table: 29063 RIPE Prefixes per ASN: 9.63 RIPE Region origin ASes announcing only one prefix: 12088 RIPE Region transit ASes present in the Internet Routing Table: 4028 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: 12750 Number of RIPE addresses announced to Internet: 733042176 Equivalent to 43 /8s, 177 /16s and 86 /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: 125041 Total LACNIC prefixes after maximum aggregation: 30299 LACNIC Deaggregation factor: 4.13 Prefixes being announced from the LACNIC address blocks: 121247 Unique aggregates announced from the LACNIC address blocks: 49497 LACNIC Region origin ASes present in the Internet Routing Table: 11297 LACNIC Prefixes per ASN: 10.73 LACNIC Region origin ASes announcing only one prefix: 2661 LACNIC Region transit ASes present in the Internet Routing Table: 2536 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: 9274 Number of LACNIC addresses announced to Internet: 170793472 Equivalent to 10 /8s, 46 /16s and 26 /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: 34936 Total AfriNIC prefixes after maximum aggregation: 6857 AfriNIC Deaggregation factor: 5.09 Prefixes being announced from the AfriNIC address blocks: 48362 Unique aggregates announced from the AfriNIC address blocks: 16400 AfriNIC Region origin ASes present in the Internet Routing Table: 1969 AfriNIC Prefixes per ASN: 24.56 AfriNIC Region origin ASes announcing only one prefix: 719 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: 1334 Number of AfriNIC addresses announced to Internet: 103869696 Equivalent to 6 /8s, 48 /16s and 237 /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 4524 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4470 536 312 BBIL-AP BHARTI Airtel Ltd., IN 7552 3948 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 2918 862 509 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 9304 2413 508 1559 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 14295 40990 5376 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 3091 240 1724 USDA-1, US 174 3055 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 7410 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 20940 4040 3395 126 AKAMAI-ASN1, NL 9009 3955 372 2238 M247, RO 12389 3123 2315 867 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2465 176 1789 CDNEXT, GB 34984 2415 363 576 TELLCOM-AS, TR 203020 1836 200 900 HOSTROYALE, IN 8452 1648 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 3503 474 1058 Telmex Colombia S.A., CO 13999 2543 511 346 Mega Cable, S.A. de C.V., MX 11830 1989 369 64 Instituto Costarricense de Electricidad y 28573 1371 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1354 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1237 278 32 Techtel LMDS Comunicaciones Interactivas 6147 1177 371 22 Telefonica del Peru S.A.A., PE 22884 1069 71 353 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 1766 600 27 RAYA-AS, EG 36992 1508 1498 383 ETISALAT-MISR, EG 24863 1250 389 20 LINKdotNET-AS, EG 36903 1250 554 97 MT-MPLS, MA 29571 1188 102 53 ORANGE-COTE-IVOIRE, CI 37069 1085 1096 13 MOBINIL, EG 36935 939 520 43 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 569 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 14295 40990 5376 AMAZON-02, US 9808 13670 8730 116 CHINAMOBILE-CN China Mobile Communication 8151 12379 3278 574 UNINET, MX 12479 7410 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 4524 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4470 536 312 BBIL-AP BHARTI Airtel Ltd., IN 20940 4040 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 7410 7261 UNI2-AS, ES 7545 6184 5579 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4767 ALJAWWALSTC-AS, SA 18403 4524 4499 FPT-AS-AP FPT Telecom Company, VN 9498 4470 4158 BBIL-AP BHARTI Airtel Ltd., IN 11492 4752 3958 CABLEONE, US 7552 3948 3920 VIETEL-AS-AP Viettel Group, VN 20940 4040 3914 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 23.135.216.0/24 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 /12:301 /13:583 /14:1203 /15:2127 /16:13784 /17:8212 /18:13470 /19:24668 /20:44338 /21:51921 /22:112613 /23:104122 /24:627712 /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 6376 7410 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 2385 14295 AMAZON-02, US 30036 2291 2631 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2216 3503 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 5:4831 6:169 7:6 8:1528 9:6 11:172 12:1242 13:564 14:2641 15:402 16:304 17:388 18:903 20:574 21:4 22:188 23:7925 24:2699 25:2 27:2805 29:19 31:3354 32:31 33:1 34:81 35:267 36:4442 37:4551 38:9513 39:1089 40:295 41:4374 42:2021 43:2724 44:391 45:18867 46:5207 47:342 49:2026 50:2053 51:594 52:1592 54:359 55:1093 56:11 57:285 58:2259 59:1309 60:1188 61:2917 62:3086 63:1768 64:5664 65:2137 66:4982 67:3115 68:1098 69:3953 70:1044 71:640 72:2969 74:2851 75:1495 76:596 77:2775 78:1919 79:1751 80:2250 81:2118 82:3451 83:1475 84:1987 85:3522 86:1101 87:2134 88:1356 89:4490 90:804 91:8380 92:2783 93:2988 94:4163 95:4490 96:1494 97:312 98:952 99:738 100:71 101:1221 102:4151 103:32279 104:5366 105:779 106:891 107:2662 108:1205 109:4224 110:2247 111:3753 112:2650 113:1854 114:1992 115:2341 116:2076 117:2940 118:3054 119:1978 120:2265 121:1358 122:2810 123:2267 124:1659 125:2883 126:93 128:1609 129:963 130:1302 131:2145 132:789 133:462 134:1611 135:365 136:1490 137:1315 138:2823 139:1611 140:1643 141:1539 142:2040 143:2055 144:1266 145:627 146:2186 147:2129 148:2741 149:2920 150:1270 151:2572 152:2174 153:640 154:7427 155:2062 156:3424 157:2001 158:1432 159:2599 160:3582 161:1995 162:3955 163:2294 164:1944 165:2553 166:1561 167:2099 168:3822 169:782 170:5361 171:1026 172:4260 173:3403 174:909 175:1345 176:3806 177:4753 178:4268 179:2269 180:2617 181:4249 182:3726 183:2536 184:2068 185:21667 186:5383 187:4707 188:4318 189:4397 190:9705 191:1539 192:11409 193:9482 194:7800 195:5577 196:3282 197:3242 198:6239 199:8762 200:8227 201:6349 202:10448 203:10598 204:4593 205:3680 206:4438 207:3712 208:4279 209:5362 210:4766 211:2679 212:4801 213:3894 214:1037 215:52 216:6917 217:3355 218:1566 219:394 220:2190 221:1236 222:752 223:3018 End of report