IPv4 R&E Routing Table Report 21:10 GMT Sat 13 Sep, 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: 1000778 Prefixes after maximum aggregation (per Origin AS): 388486 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 493614 Number of IPv4 prefixes with a valid ROA: 570570 Number of IPv4 prefixes with an invalid ROA: 159 Number of IPv4 prefixes with no ROA: 430049 Total ASes present in the Internet Routing Table: 77294 Prefixes per ASN: 12.95 Origin-only ASes present in the Internet Routing Table: 66199 Origin ASes announcing only one prefix: 27034 Transit ASes present in the Internet Routing Table: 11095 Transit-only ASes present in the Internet Routing Table: 550 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: 1064 Number of instances of unregistered ASNs: 1093 Number of 32-bit ASNs allocated by the RIRs: 47403 Number of 32-bit ASNs visible in the Routing Table: 38953 Prefixes from 32-bit ASNs in the Routing Table: 209775 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: 448 Number of addresses announced to Internet: 3107435264 Equivalent to 185 /8s, 55 /16s and 179 /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: 326116 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 266645 Total APNIC prefixes after maximum aggregation: 79249 APNIC Deaggregation factor: 3.36 Prefixes being announced from the APNIC address blocks: 256768 Unique aggregates announced from the APNIC address blocks: 105420 APNIC Region origin ASes present in the Internet Routing Table: 14803 APNIC Prefixes per ASN: 17.35 APNIC Region origin ASes announcing only one prefix: 4524 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: 10355 Number of APNIC addresses announced to Internet: 749939968 Equivalent to 44 /8s, 179 /16s and 45 /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: 294088 Total ARIN prefixes after maximum aggregation: 133640 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 295423 Unique aggregates announced from the ARIN address blocks: 142622 ARIN Region origin ASes present in the Internet Routing Table: 19302 ARIN Prefixes per ASN: 15.31 ARIN Region origin ASes announcing only one prefix: 7063 ARIN Region transit ASes present in the Internet Routing Table: 1985 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 41 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5332 Number of ARIN addresses announced to Internet: 1349536000 Equivalent to 80 /8s, 112 /16s and 73 /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: 278946 Total RIPE prefixes after maximum aggregation: 137847 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 278266 Unique aggregates announced from the RIPE address blocks: 179864 RIPE Region origin ASes present in the Internet Routing Table: 29047 RIPE Prefixes per ASN: 9.58 RIPE Region origin ASes announcing only one prefix: 12088 RIPE Region transit ASes present in the Internet Routing Table: 4007 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: 12697 Number of RIPE addresses announced to Internet: 732247296 Equivalent to 43 /8s, 165 /16s and 53 /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: 125030 Total LACNIC prefixes after maximum aggregation: 30208 LACNIC Deaggregation factor: 4.14 Prefixes being announced from the LACNIC address blocks: 121249 Unique aggregates announced from the LACNIC address blocks: 49478 LACNIC Region origin ASes present in the Internet Routing Table: 11279 LACNIC Prefixes per ASN: 10.75 LACNIC Region origin ASes announcing only one prefix: 2642 LACNIC Region transit ASes present in the Internet Routing Table: 2534 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: 9244 Number of LACNIC addresses announced to Internet: 170757376 Equivalent to 10 /8s, 45 /16s and 141 /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: 35005 Total AfriNIC prefixes after maximum aggregation: 6835 AfriNIC Deaggregation factor: 5.12 Prefixes being announced from the AfriNIC address blocks: 48623 Unique aggregates announced from the AfriNIC address blocks: 15831 AfriNIC Region origin ASes present in the Internet Routing Table: 1965 AfriNIC Prefixes per ASN: 24.74 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: 5.1 Max AfriNIC Region AS path length visible: 37 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1325 Number of AfriNIC addresses announced to Internet: 104688640 Equivalent to 6 /8s, 61 /16s and 108 /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 13267 8729 114 CHINAMOBILE-CN China Mobile Communication 7545 6138 838 616 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4467 535 311 BBIL-AP BHARTI Airtel Ltd., IN 18403 4453 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3937 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3664 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3294 1868 99 VNPT-AS-VN VNPT Corp, VN 56046 3010 811 178 CMNET-JIANGSU-AP China Mobile communicati 24560 2912 862 510 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4755 2169 427 181 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 14347 40862 5376 AMAZON-02, US 11492 4734 314 823 CABLEONE, US 22773 3961 3062 317 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3667 1320 81 SHAW, CA 174 3286 8766 829 COGENT-174, US 396982 3229 3858 445 GOOGLE-CLOUD-PLATFORM, US 749 3220 54766 2471 DNIC-AS-00749, US 16625 3043 1294 2205 AKAMAI-AS, US 4155 2993 233 1735 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 7484 1711 149 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 4031 3395 127 AKAMAI-ASN1, NL 9009 3869 364 2190 M247, RO 12389 3120 2316 867 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2416 172 1749 CDNEXT, GB 34984 2415 363 574 TELLCOM-AS, TR 203020 1893 226 875 HOSTROYALE, IN 8452 1611 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 12370 3280 573 UNINET, MX 10620 3493 473 1047 Telmex Colombia S.A., CO 13999 2543 511 348 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 1352 789 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1216 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1180 371 22 Telefonica del Peru S.A.A., PE 22884 1064 71 363 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1009 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 1823 652 28 RAYA-AS, EG 36992 1504 1498 379 ETISALAT-MISR, EG 36903 1250 554 97 MT-MPLS, MA 24863 1245 389 20 LINKdotNET-AS, EG 29571 1241 102 51 ORANGE-COTE-IVOIRE, CI 37069 1085 1096 13 MOBINIL, EG 36935 1066 523 46 Vodafone-, EG 20011 576 154 212 NTT-DATA-Inc, ZA 36914 566 82 3 KENET-AS, KE 15399 547 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 14347 40862 5376 AMAZON-02, US 9808 13267 8729 114 CHINAMOBILE-CN China Mobile Communication 8151 12370 3280 573 UNINET, MX 12479 7484 1711 149 UNI2-AS, ES 7545 6138 838 616 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4734 314 823 CABLEONE, US 9498 4467 535 311 BBIL-AP BHARTI Airtel Ltd., IN 18403 4453 347 25 FPT-AS-AP FPT Telecom Company, VN 20940 4031 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 13267 13153 CHINAMOBILE-CN China Mobile Communications Grou 8151 12370 11797 UNINET, MX 12479 7484 7335 UNI2-AS, ES 7545 6138 5522 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4453 4428 FPT-AS-AP FPT Telecom Company, VN 9498 4467 4156 BBIL-AP BHARTI Airtel Ltd., IN 11492 4734 3911 CABLEONE, US 7552 3937 3910 VIETEL-AS-AP Viettel Group, VN 20940 4031 3904 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 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 1782 UNALLOCATED 8.42.19.0/24 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 23.135.216.0/24 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 /11:92 /12:298 /13:580 /14:1209 /15:2148 /16:13768 /17:8218 /18:13471 /19:24591 /20:44290 /21:52023 /22:112442 /23:103602 /24:623974 /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 6569 12370 UNINET, MX 12479 6445 7484 UNI2-AS, ES 11492 3550 4734 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3465 3667 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2507 3961 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2436 14347 AMAZON-02, US 30036 2309 2651 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2211 3493 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) ---------------------------------------------- 1:2418 2:1549 3:924 4:10 5:4826 6:157 7:6 8:1541 9:4 11:172 12:1251 13:561 14:2617 15:398 16:303 17:386 18:902 20:570 21:4 22:188 23:7882 24:2707 25:2 27:2812 29:19 31:3363 32:30 33:1 34:81 35:266 36:4324 37:4543 38:9381 39:1030 40:282 41:4340 42:1966 43:2704 44:378 45:18943 46:5125 47:343 49:2010 50:2055 51:591 52:1610 54:369 55:1113 56:11 57:286 58:2246 59:1285 60:1182 61:2880 62:3053 63:1772 64:5622 65:2131 66:4855 67:3104 68:1077 69:3927 70:1031 71:635 72:2877 74:2830 75:1506 76:599 77:2781 78:1921 79:1760 80:2241 81:2090 82:3319 83:1457 84:1973 85:3498 86:1099 87:2129 88:1340 89:4495 90:804 91:8410 92:2785 93:2980 94:4150 95:4460 96:1470 97:312 98:947 99:751 100:71 101:1218 102:4098 103:32301 104:5291 105:784 106:877 107:2653 108:1221 109:4206 110:2235 111:3656 112:2532 113:1826 114:1993 115:2288 116:2071 117:2806 118:3060 119:1928 120:2206 121:1354 122:2791 123:2254 124:1670 125:2877 126:91 128:1596 129:963 130:1296 131:2157 132:790 133:458 134:1601 135:365 136:1487 137:1329 138:2833 139:1604 140:1625 141:1539 142:1914 143:2034 144:1248 145:608 146:2183 147:2112 148:2731 149:2912 150:1264 151:2409 152:2120 153:629 154:7441 155:2018 156:3505 157:1991 158:1420 159:2559 160:3619 161:1954 162:3919 163:2306 164:1918 165:2571 166:1558 167:2081 168:3829 169:783 170:5366 171:1007 172:4250 173:3404 174:902 175:1343 176:3798 177:4780 178:4109 179:2318 180:2606 181:4205 182:3707 183:2424 184:2065 185:21659 186:5436 187:4647 188:4267 189:4378 190:9670 191:1554 192:11411 193:9473 194:7795 195:5554 196:3286 197:3222 198:6246 199:8664 200:8241 201:6343 202:10384 203:10662 204:4577 205:3682 206:4548 207:3651 208:4265 209:5233 210:4741 211:2666 212:4679 213:3862 214:1039 215:52 216:6868 217:3320 218:1462 219:394 220:2150 221:1219 222:752 223:2863 End of report