IPv4 R&E Routing Table Report 21:10 GMT Fri 12 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: 1000831 Prefixes after maximum aggregation (per Origin AS): 388490 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 493725 Number of IPv4 prefixes with a valid ROA: 570639 Number of IPv4 prefixes with an invalid ROA: 160 Number of IPv4 prefixes with no ROA: 430032 Total ASes present in the Internet Routing Table: 77292 Prefixes per ASN: 12.95 Origin-only ASes present in the Internet Routing Table: 66192 Origin ASes announcing only one prefix: 27036 Transit ASes present in the Internet Routing Table: 11100 Transit-only ASes present in the Internet Routing Table: 549 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: 1066 Number of instances of unregistered ASNs: 1095 Number of 32-bit ASNs allocated by the RIRs: 47386 Number of 32-bit ASNs visible in the Routing Table: 38948 Prefixes from 32-bit ASNs in the Routing Table: 209863 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: 449 Number of addresses announced to Internet: 3107637248 Equivalent to 185 /8s, 58 /16s and 200 /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: 326017 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 266766 Total APNIC prefixes after maximum aggregation: 79238 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 256890 Unique aggregates announced from the APNIC address blocks: 105544 APNIC Region origin ASes present in the Internet Routing Table: 14798 APNIC Prefixes per ASN: 17.36 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: 10347 Number of APNIC addresses announced to Internet: 750179328 Equivalent to 44 /8s, 182 /16s and 212 /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: 294146 Total ARIN prefixes after maximum aggregation: 133649 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 295507 Unique aggregates announced from the ARIN address blocks: 142656 ARIN Region origin ASes present in the Internet Routing Table: 19298 ARIN Prefixes per ASN: 15.31 ARIN Region origin ASes announcing only one prefix: 7058 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: 1349568000 Equivalent to 80 /8s, 112 /16s and 198 /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: 278958 Total RIPE prefixes after maximum aggregation: 137840 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 278268 Unique aggregates announced from the RIPE address blocks: 179843 RIPE Region origin ASes present in the Internet Routing Table: 29049 RIPE Prefixes per ASN: 9.58 RIPE Region origin ASes announcing only one prefix: 12094 RIPE Region transit ASes present in the Internet Routing Table: 4012 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: 12694 Number of RIPE addresses announced to Internet: 732225280 Equivalent to 43 /8s, 164 /16s and 223 /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: 124861 Total LACNIC prefixes after maximum aggregation: 30216 LACNIC Deaggregation factor: 4.13 Prefixes being announced from the LACNIC address blocks: 121065 Unique aggregates announced from the LACNIC address blocks: 49455 LACNIC Region origin ASes present in the Internet Routing Table: 11282 LACNIC Prefixes per ASN: 10.73 LACNIC Region origin ASes announcing only one prefix: 2646 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: 36 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9248 Number of LACNIC addresses announced to Internet: 170714368 Equivalent to 10 /8s, 44 /16s and 229 /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: 35034 Total AfriNIC prefixes after maximum aggregation: 6839 AfriNIC Deaggregation factor: 5.12 Prefixes being announced from the AfriNIC address blocks: 48651 Unique aggregates announced from the AfriNIC address blocks: 15829 AfriNIC Region origin ASes present in the Internet Routing Table: 1967 AfriNIC Prefixes per ASN: 24.73 AfriNIC Region origin ASes announcing only one prefix: 719 AfriNIC Region transit ASes present in the Internet Routing Table: 383 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: 1327 Number of AfriNIC addresses announced to Internet: 104688384 Equivalent to 6 /8s, 61 /16s and 107 /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 4444 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3937 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3660 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3294 1868 99 VNPT-AS-VN VNPT Corp, VN 56046 3011 811 178 CMNET-JIANGSU-AP China Mobile communicati 24560 2916 862 507 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4755 2171 427 182 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 14356 40863 5380 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 3284 8766 829 COGENT-174, US 396982 3227 3858 443 GOOGLE-CLOUD-PLATFORM, US 749 3219 54766 2470 DNIC-AS-00749, US 16625 3043 1294 2205 AKAMAI-AS, US 4155 3000 233 1739 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 1375 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 1179 371 22 Telefonica del Peru S.A.A., PE 22884 1063 71 362 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 50 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 574 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 14356 40863 5380 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 4444 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 4444 4419 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 /16:13770 /17:8216 /18:13471 /19:24594 /20:44298 /21:52025 /22:112548 /23:103615 /24:623895 /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 2438 14356 AMAZON-02, US 30036 2308 2650 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 2:1550 3:928 4:10 5:4823 6:157 7:6 8:1544 9:4 11:172 12:1250 13:561 14:2617 15:398 16:303 17:386 18:903 20:570 21:4 22:188 23:7880 24:2707 25:2 27:2821 29:19 31:3361 32:30 33:1 34:81 35:266 36:4321 37:4542 38:9386 39:1030 40:282 41:4330 42:1962 43:2705 44:378 45:18922 46:5128 47:343 49:2010 50:2056 51:591 52:1606 54:369 55:1111 56:11 57:286 58:2244 59:1289 60:1182 61:2880 62:3053 63:1772 64:5623 65:2132 66:4849 67:3105 68:1076 69:3924 70:1031 71:635 72:2876 74:2831 75:1506 76:600 77:2781 78:1918 79:1763 80:2235 81:2091 82:3320 83:1458 84:1973 85:3495 86:1098 87:2130 88:1356 89:4493 90:804 91:8403 92:2785 93:2984 94:4151 95:4455 96:1470 97:312 98:947 99:752 100:71 101:1218 102:4093 103:32289 104:5291 105:783 106:877 107:2655 108:1223 109:4202 110:2236 111:3669 112:2532 113:1826 114:1993 115:2287 116:2071 117:2807 118:3060 119:1928 120:2206 121:1355 122:2793 123:2253 124:1667 125:2877 126:91 128:1597 129:963 130:1296 131:2155 132:790 133:461 134:1602 135:365 136:1487 137:1326 138:2826 139:1606 140:1626 141:1540 142:1908 143:2035 144:1247 145:608 146:2184 147:2112 148:2688 149:2915 150:1264 151:2408 152:2121 153:629 154:7437 155:2034 156:3507 157:1988 158:1423 159:2560 160:3609 161:1953 162:3919 163:2306 164:1922 165:2583 166:1559 167:2082 168:3821 169:782 170:5359 171:1007 172:4250 173:3404 174:902 175:1344 176:3796 177:4769 178:4109 179:2318 180:2605 181:4198 182:3705 183:2419 184:2067 185:21656 186:5401 187:4645 188:4267 189:4380 190:9668 191:1548 192:11407 193:9474 194:7797 195:5558 196:3303 197:3234 198:6242 199:8666 200:8234 201:6332 202:10417 203:10662 204:4579 205:3688 206:4550 207:3657 208:4265 209:5235 210:4743 211:2666 212:4687 213:3861 214:1038 215:52 216:6868 217:3317 218:1463 219:394 220:2145 221:1219 222:752 223:2865 End of report