IPv4 R&E Routing Table Report 21:10 GMT Wed 30 Jul, 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: 991838 Prefixes after maximum aggregation (per Origin AS): 384071 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 488100 Number of IPv4 prefixes with a valid ROA: 558312 Number of IPv4 prefixes with an invalid ROA: 163 Number of IPv4 prefixes with no ROA: 433363 Total ASes present in the Internet Routing Table: 77057 Prefixes per ASN: 12.87 Origin-only ASes present in the Internet Routing Table: 65978 Origin ASes announcing only one prefix: 26940 Transit ASes present in the Internet Routing Table: 11079 Transit-only ASes present in the Internet Routing Table: 560 Paths with bogon ASNs present in the IPv4 Routing Table: 18 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 52 Max AS path prepend of ASN (212940) 45 Prefixes from unregistered ASNs in the Routing Table: 1131 Number of instances of unregistered ASNs: 1181 Number of 32-bit ASNs allocated by the RIRs: 46974 Number of 32-bit ASNs visible in the Routing Table: 38664 Prefixes from 32-bit ASNs in the Routing Table: 206161 Number of bogon 32-bit ASNs visible in the Routing Table: 110 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 460 Number of addresses announced to Internet: 3107262208 Equivalent to 185 /8s, 53 /16s and 15 /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: 323444 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 262597 Total APNIC prefixes after maximum aggregation: 77987 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 253740 Unique aggregates announced from the APNIC address blocks: 105006 APNIC Region origin ASes present in the Internet Routing Table: 14720 APNIC Prefixes per ASN: 17.24 APNIC Region origin ASes announcing only one prefix: 4493 APNIC Region transit ASes present in the Internet Routing Table: 1978 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 34 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10260 Number of APNIC addresses announced to Internet: 749242880 Equivalent to 44 /8s, 168 /16s and 138 /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: 292059 Total ARIN prefixes after maximum aggregation: 132237 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 293521 Unique aggregates announced from the ARIN address blocks: 141500 ARIN Region origin ASes present in the Internet Routing Table: 19241 ARIN Prefixes per ASN: 15.25 ARIN Region origin ASes announcing only one prefix: 7034 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: 34 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5265 Number of ARIN addresses announced to Internet: 1349171456 Equivalent to 80 /8s, 106 /16s and 185 /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: 276692 Total RIPE prefixes after maximum aggregation: 136411 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 275666 Unique aggregates announced from the RIPE address blocks: 178106 RIPE Region origin ASes present in the Internet Routing Table: 28963 RIPE Prefixes per ASN: 9.52 RIPE Region origin ASes announcing only one prefix: 12051 RIPE Region transit ASes present in the Internet Routing Table: 3995 Average RIPE Region AS path length visible: 4.5 Max RIPE Region AS path length visible: 49 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12598 Number of RIPE addresses announced to Internet: 732194304 Equivalent to 43 /8s, 164 /16s and 102 /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: 124709 Total LACNIC prefixes after maximum aggregation: 29889 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 121071 Unique aggregates announced from the LACNIC address blocks: 49146 LACNIC Region origin ASes present in the Internet Routing Table: 11260 LACNIC Prefixes per ASN: 10.75 LACNIC Region origin ASes announcing only one prefix: 2652 LACNIC Region transit ASes present in the Internet Routing Table: 2538 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: 9231 Number of LACNIC addresses announced to Internet: 171204864 Equivalent to 10 /8s, 52 /16s and 97 /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: 34650 Total AfriNIC prefixes after maximum aggregation: 6812 AfriNIC Deaggregation factor: 5.09 Prefixes being announced from the AfriNIC address blocks: 47379 Unique aggregates announced from the AfriNIC address blocks: 13959 AfriNIC Region origin ASes present in the Internet Routing Table: 1947 AfriNIC Prefixes per ASN: 24.33 AfriNIC Region origin ASes announcing only one prefix: 710 AfriNIC Region transit ASes present in the Internet Routing Table: 380 Average AfriNIC Region AS path length visible: 5.2 Max AfriNIC Region AS path length visible: 37 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1310 Number of AfriNIC addresses announced to Internet: 105192192 Equivalent to 6 /8s, 69 /16s and 27 /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 12347 8762 116 CHINAMOBILE-CN China Mobile Communication 7545 6138 837 624 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4532 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4464 535 311 BBIL-AP BHARTI Airtel Ltd., IN 7552 3900 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3682 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3280 1868 99 VNPT-AS-VN VNPT Corp, VN 24560 2914 864 510 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2888 811 177 CMNET-JIANGSU-AP China Mobile communicati 45090 2172 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 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 13664 40975 5280 AMAZON-02, US 11492 4821 319 607 CABLEONE, US 7155 3855 286 85 VIASAT-SP-BACKBONE, US 6327 3636 1320 82 SHAW, CA 174 3476 8771 863 COGENT-174, US 22773 3341 3029 165 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 396982 3200 3856 434 GOOGLE-CLOUD-PLATFORM, US 16625 3061 1297 2225 AKAMAI-AS, US 4155 2889 219 1734 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 7587 1712 148 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 4027 3395 127 AKAMAI-ASN1, NL 9009 3823 362 2136 M247, RO 12389 3115 2315 869 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2404 361 584 TELLCOM-AS, TR 212238 2320 164 1688 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1579 1852 14 TE-AS TE-AS, EG 203020 1523 191 672 HOSTROYALE, IN 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 12317 3276 576 UNINET, MX 10620 3479 473 1035 Telmex Colombia S.A., CO 13999 2522 511 354 Mega Cable, S.A. de C.V., MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 28573 1371 2435 269 Claro NXT Telecomunicacoes Ltda, BR 3816 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1188 371 22 Telefonica del Peru S.A.A., PE 22884 1074 71 374 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 11664 1072 278 33 Techtel LMDS Comunicaciones Interactivas 6503 1019 373 162 Axtel, S.A.B. de C.V., MX 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 1717 660 28 RAYA-AS, EG 29571 1604 102 51 ORANGE-COTE-IVOIRE, CI 36992 1322 1490 355 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 24863 1231 389 20 LINKdotNET-AS, EG 37069 1086 1112 11 MOBINIL, EG 36935 899 520 43 Vodafone-, EG 36914 574 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 15399 541 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 13664 40975 5280 AMAZON-02, US 9808 12347 8762 116 CHINAMOBILE-CN China Mobile Communication 8151 12317 3276 576 UNINET, MX 12479 7587 1712 148 UNI2-AS, ES 7545 6138 837 624 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4821 319 607 CABLEONE, US 39891 4798 293 63 ALJAWWALSTC-AS, SA 18403 4532 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4464 535 311 BBIL-AP BHARTI Airtel Ltd., IN 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 12347 12231 CHINAMOBILE-CN China Mobile Communications Grou 8151 12317 11741 UNINET, MX 12479 7587 7439 UNI2-AS, ES 7545 6138 5514 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4532 4507 FPT-AS-AP FPT Telecom Company, VN 11492 4821 4214 CABLEONE, US 9498 4464 4153 BBIL-AP BHARTI Airtel Ltd., IN 20940 4027 3900 AKAMAI-ASN1, NL 7552 3900 3873 VIETEL-AS-AP Viettel Group, VN 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 22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US 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 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US 398074 UNALLOCATED 8.28.115.0/24 32787 PROLEXIC-TECHNOLOGIES-D 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 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 /13:581 /14:1209 /15:2153 /16:13794 /17:8233 /18:13507 /19:24553 /20:43997 /21:51763 /22:112003 /23:102989 /24:616594 /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 6538 7587 UNI2-AS, ES 8151 6534 12317 UNINET, MX 11492 3613 4821 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3433 3636 SHAW, CA 7155 2814 3855 VIASAT-SP-BACKBONE, US 22773 2493 3341 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2355 13664 AMAZON-02, US 30036 2288 2629 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2195 3479 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 2:1525 3:848 4:10 5:4739 6:163 7:6 8:1553 9:1 11:172 12:1340 13:456 14:2571 15:367 16:286 17:377 18:898 20:560 21:4 22:188 23:7769 24:2725 25:2 27:2802 29:19 31:3348 32:35 33:1 34:80 35:261 36:4037 37:4558 38:9469 39:947 40:247 41:4247 42:2020 43:2692 44:378 45:18593 46:5102 47:336 49:1893 50:2011 51:591 52:1554 54:325 55:1109 56:11 57:274 58:2174 59:1293 60:1171 61:2791 62:2989 63:1791 64:5532 65:2146 66:4754 67:3105 68:1071 69:3904 70:1040 71:630 72:2845 74:2807 75:1507 76:608 77:2775 78:1917 79:1703 80:2203 81:2056 82:3188 83:1440 84:1895 85:3488 86:1091 87:2130 88:1342 89:4411 90:777 91:8421 92:2719 93:2955 94:4062 95:4425 96:1468 97:309 98:955 99:694 100:71 101:1194 102:3909 103:32282 104:5244 105:807 106:971 107:2659 108:1263 109:4179 110:2230 111:3362 112:2340 113:1843 114:1961 115:2237 116:2068 117:2640 118:2985 119:1911 120:2174 121:1335 122:2791 123:2246 124:1656 125:2876 126:91 128:1616 129:969 130:1313 131:2062 132:782 133:450 134:1601 135:351 136:1461 137:1322 138:2837 139:1590 140:1628 141:1516 142:1911 143:1956 144:1171 145:564 146:2181 147:2097 148:2726 149:2937 150:1280 151:2251 152:2075 153:590 154:7586 155:1854 156:3082 157:1951 158:1358 159:2518 160:3598 161:1898 162:3868 163:2250 164:1878 165:2419 166:1535 167:2007 168:3968 169:786 170:5127 171:994 172:4249 173:3389 174:917 175:1326 176:3732 177:4761 178:3939 179:2317 180:2587 181:4133 182:3536 183:2196 184:2080 185:21609 186:5257 187:4673 188:4265 189:4366 190:9567 191:1502 192:11337 193:9475 194:7775 195:5588 196:3284 197:3186 198:6233 199:8606 200:8280 201:6393 202:10375 203:10669 204:4665 205:3635 206:4502 207:3641 208:4287 209:5186 210:4695 211:2603 212:4553 213:3821 214:1025 215:48 216:6770 217:3229 218:1376 219:396 220:2147 221:1206 222:739 223:2735 End of report