IPv4 R&E Routing Table Report 21:10 GMT Sat 23 Aug, 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: 996328 Prefixes after maximum aggregation (per Origin AS): 386686 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 491846 Number of IPv4 prefixes with a valid ROA: 562644 Number of IPv4 prefixes with an invalid ROA: 150 Number of IPv4 prefixes with no ROA: 433534 Total ASes present in the Internet Routing Table: 77221 Prefixes per ASN: 12.90 Origin-only ASes present in the Internet Routing Table: 66107 Origin ASes announcing only one prefix: 27004 Transit ASes present in the Internet Routing Table: 11114 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 (212940) 45 Prefixes from unregistered ASNs in the Routing Table: 1035 Number of instances of unregistered ASNs: 1064 Number of 32-bit ASNs allocated by the RIRs: 47254 Number of 32-bit ASNs visible in the Routing Table: 38846 Prefixes from 32-bit ASNs in the Routing Table: 208392 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: 430 Number of addresses announced to Internet: 3106623232 Equivalent to 185 /8s, 43 /16s and 79 /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: 324650 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 265126 Total APNIC prefixes after maximum aggregation: 78703 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 255670 Unique aggregates announced from the APNIC address blocks: 105120 APNIC Region origin ASes present in the Internet Routing Table: 14781 APNIC Prefixes per ASN: 17.30 APNIC Region origin ASes announcing only one prefix: 4514 APNIC Region transit ASes present in the Internet Routing Table: 1993 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 34 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10317 Number of APNIC addresses announced to Internet: 749846784 Equivalent to 44 /8s, 177 /16s and 193 /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: 292657 Total ARIN prefixes after maximum aggregation: 133192 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 294307 Unique aggregates announced from the ARIN address blocks: 142133 ARIN Region origin ASes present in the Internet Routing Table: 19280 ARIN Prefixes per ASN: 15.26 ARIN Region origin ASes announcing only one prefix: 7051 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: 5299 Number of ARIN addresses announced to Internet: 1348823040 Equivalent to 80 /8s, 101 /16s and 104 /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: 278131 Total RIPE prefixes after maximum aggregation: 137173 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 277383 Unique aggregates announced from the RIPE address blocks: 179192 RIPE Region origin ASes present in the Internet Routing Table: 29033 RIPE Prefixes per ASN: 9.55 RIPE Region origin ASes announcing only one prefix: 12083 RIPE Region transit ASes present in the Internet Routing Table: 3988 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 49 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12669 Number of RIPE addresses announced to Internet: 732386304 Equivalent to 43 /8s, 167 /16s and 84 /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: 124461 Total LACNIC prefixes after maximum aggregation: 30148 LACNIC Deaggregation factor: 4.13 Prefixes being announced from the LACNIC address blocks: 120679 Unique aggregates announced from the LACNIC address blocks: 49396 LACNIC Region origin ASes present in the Internet Routing Table: 11276 LACNIC Prefixes per ASN: 10.70 LACNIC Region origin ASes announcing only one prefix: 2641 LACNIC Region transit ASes present in the Internet Routing Table: 2558 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 36 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9243 Number of LACNIC addresses announced to Internet: 170724352 Equivalent to 10 /8s, 45 /16s and 12 /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: 34918 Total AfriNIC prefixes after maximum aggregation: 6783 AfriNIC Deaggregation factor: 5.15 Prefixes being announced from the AfriNIC address blocks: 47858 Unique aggregates announced from the AfriNIC address blocks: 15630 AfriNIC Region origin ASes present in the Internet Routing Table: 1955 AfriNIC Prefixes per ASN: 24.48 AfriNIC Region origin ASes announcing only one prefix: 715 AfriNIC Region transit ASes present in the Internet Routing Table: 382 Average AfriNIC Region AS path length visible: 5.1 Max AfriNIC Region AS path length visible: 37 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1318 Number of AfriNIC addresses announced to Internet: 104602112 Equivalent to 6 /8s, 60 /16s and 26 /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 12928 8761 115 CHINAMOBILE-CN China Mobile Communication 7545 6139 838 617 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4467 535 311 BBIL-AP BHARTI Airtel Ltd., IN 18403 4446 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3940 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3657 1043 70 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3292 1868 99 VNPT-AS-VN VNPT Corp, VN 56046 2970 811 177 CMNET-JIANGSU-AP China Mobile communicati 24560 2919 865 501 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4755 2173 427 184 TATACOMM-AS TATA Communications formerly 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 13983 40851 5386 AMAZON-02, US 11492 4742 314 779 CABLEONE, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3648 1320 82 SHAW, CA 22773 3334 3030 159 ASN-CXA-ALL-CCI-22773-RDC, US 174 3284 8759 847 COGENT-174, US 749 3222 54766 2473 DNIC-AS-00749, US 396982 3217 3857 435 GOOGLE-CLOUD-PLATFORM, US 16625 3040 1292 2209 AKAMAI-AS, US 4155 2938 229 1740 USDA-1, 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 7539 1711 150 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 4027 3395 127 AKAMAI-ASN1, NL 9009 3865 366 2185 M247, RO 12389 3112 2315 867 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2404 361 585 TELLCOM-AS, TR 212238 2334 166 1702 CDNEXT, GB 203020 1799 220 826 HOSTROYALE, IN 13188 1606 100 34 TRIOLAN, UA 8452 1601 1852 14 TE-AS TE-AS, EG 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 12279 3270 571 UNINET, MX 10620 3483 472 1054 Telmex Colombia S.A., CO 13999 2526 511 351 Mega Cable, S.A. de C.V., MX 11830 1988 369 64 Instituto Costarricense de Electricidad y 28573 1369 2432 266 Claro NXT Telecomunicacoes Ltda, BR 3816 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1220 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1178 371 22 Telefonica del Peru S.A.A., PE 22884 1059 70 381 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1019 2487 55 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 660 28 RAYA-AS, EG 29571 1499 94 32 ORANGE-COTE-IVOIRE, CI 36992 1420 1495 374 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 24863 1241 389 20 LINKdotNET-AS, EG 37069 1085 1096 13 MOBINIL, EG 36935 991 523 46 Vodafone-, EG 20011 576 154 212 INTERNET-SOLUTIONS, ZA 36914 556 82 3 KENET-AS, KE 15399 543 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 13983 40851 5386 AMAZON-02, US 9808 12928 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 12279 3270 571 UNINET, MX 12479 7539 1711 150 UNI2-AS, ES 7545 6139 838 617 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4742 314 779 CABLEONE, US 9498 4467 535 311 BBIL-AP BHARTI Airtel Ltd., IN 18403 4446 347 25 FPT-AS-AP FPT Telecom Company, VN 20940 4027 3395 127 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 12928 12813 CHINAMOBILE-CN China Mobile Communications Grou 8151 12279 11708 UNINET, MX 12479 7539 7389 UNI2-AS, ES 7545 6139 5522 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4446 4421 FPT-AS-AP FPT Telecom Company, VN 9498 4467 4156 BBIL-AP BHARTI Airtel Ltd., IN 11492 4742 3963 CABLEONE, US 7552 3940 3913 VIETEL-AS-AP Viettel Group, VN 20940 4027 3900 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 33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 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 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, 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 23.147.224.0/24 Origin: 27392 639-DATACENTERS, US 23.147.224.0/24 Transit: 3356 LEVEL3, 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 /11:92 /12:298 /13:580 /14:1208 /15:2150 /16:13773 /17:8212 /18:13491 /19:24596 /20:44052 /21:51924 /22:112280 /23:103293 /24:620307 /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 12479 6500 7539 UNI2-AS, ES 8151 6487 12279 UNINET, MX 11492 3555 4742 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3445 3648 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2493 3334 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2381 13983 AMAZON-02, US 30036 2315 2658 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2203 3483 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) ---------------------------------------------- 1:2412 2:1538 3:921 4:10 5:4806 6:158 7:6 8:1545 9:3 11:172 12:1256 13:481 14:2591 15:385 16:285 17:380 18:901 20:564 21:4 22:188 23:7863 24:2704 25:2 27:2828 29:19 31:3372 32:29 33:1 34:81 35:259 36:4292 37:4565 38:9280 39:984 40:264 41:4277 42:1979 43:2700 44:384 45:18773 46:5124 47:337 49:1974 50:2063 51:591 52:1560 54:332 55:1112 56:11 57:287 58:2243 59:1277 60:1178 61:2864 62:3022 63:1782 64:5606 65:2141 66:4818 67:3105 68:1065 69:3912 70:1031 71:638 72:2853 74:2816 75:1509 76:602 77:2779 78:1916 79:1737 80:2230 81:2089 82:3257 83:1448 84:1922 85:3486 86:1125 87:2145 88:1352 89:4474 90:776 91:8420 92:2758 93:2974 94:4137 95:4458 96:1464 97:311 98:954 99:711 100:70 101:1218 102:3931 103:32327 104:5286 105:771 106:875 107:2648 108:1262 109:4192 110:2242 111:3584 112:2474 113:1869 114:1977 115:2231 116:2064 117:2699 118:3027 119:1913 120:2207 121:1334 122:2809 123:2238 124:1661 125:2884 126:91 128:1615 129:962 130:1305 131:2070 132:777 133:460 134:1622 135:357 136:1482 137:1308 138:2831 139:1599 140:1617 141:1533 142:1914 143:1995 144:1206 145:587 146:2183 147:2106 148:2717 149:3023 150:1250 151:2375 152:2113 153:624 154:7408 155:1917 156:3293 157:1957 158:1389 159:2539 160:3612 161:1921 162:3899 163:2288 164:1885 165:2495 166:1550 167:2066 168:3871 169:772 170:5234 171:997 172:4263 173:3414 174:904 175:1322 176:3784 177:4786 178:3985 179:2316 180:2592 181:4172 182:3609 183:2249 184:2076 185:21644 186:5313 187:4614 188:4304 189:4358 190:9423 191:1545 192:11365 193:9475 194:7801 195:5643 196:3298 197:3210 198:6239 199:8609 200:8214 201:6369 202:10413 203:10664 204:4598 205:3670 206:4529 207:3641 208:4293 209:5183 210:4726 211:2652 212:4622 213:3837 214:1039 215:51 216:6797 217:3308 218:1439 219:397 220:2142 221:1210 222:742 223:2812 End of report