IPv4 R&E Routing Table Report 21:10 GMT Wed 10 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: 1000142 Prefixes after maximum aggregation (per Origin AS): 388218 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 493603 Number of IPv4 prefixes with a valid ROA: 569626 Number of IPv4 prefixes with an invalid ROA: 158 Number of IPv4 prefixes with no ROA: 430358 Total ASes present in the Internet Routing Table: 77260 Prefixes per ASN: 12.95 Origin-only ASes present in the Internet Routing Table: 66152 Origin ASes announcing only one prefix: 27018 Transit ASes present in the Internet Routing Table: 11108 Transit-only ASes present in the Internet Routing Table: 553 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: 1083 Number of instances of unregistered ASNs: 1112 Number of 32-bit ASNs allocated by the RIRs: 47345 Number of 32-bit ASNs visible in the Routing Table: 38920 Prefixes from 32-bit ASNs in the Routing Table: 209576 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: 465 Number of addresses announced to Internet: 3107552512 Equivalent to 185 /8s, 57 /16s and 125 /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: 325996 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 266310 Total APNIC prefixes after maximum aggregation: 79110 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 256415 Unique aggregates announced from the APNIC address blocks: 105500 APNIC Region origin ASes present in the Internet Routing Table: 14784 APNIC Prefixes per ASN: 17.34 APNIC Region origin ASes announcing only one prefix: 4506 APNIC Region transit ASes present in the Internet Routing Table: 1974 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: 10333 Number of APNIC addresses announced to Internet: 750212608 Equivalent to 44 /8s, 183 /16s and 86 /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: 293848 Total ARIN prefixes after maximum aggregation: 133569 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 295291 Unique aggregates announced from the ARIN address blocks: 142677 ARIN Region origin ASes present in the Internet Routing Table: 19287 ARIN Prefixes per ASN: 15.31 ARIN Region origin ASes announcing only one prefix: 7056 ARIN Region transit ASes present in the Internet Routing Table: 1992 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: 5327 Number of ARIN addresses announced to Internet: 1349439488 Equivalent to 80 /8s, 110 /16s and 208 /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: 278882 Total RIPE prefixes after maximum aggregation: 137813 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 278091 Unique aggregates announced from the RIPE address blocks: 179744 RIPE Region origin ASes present in the Internet Routing Table: 29035 RIPE Prefixes per ASN: 9.58 RIPE Region origin ASes announcing only one prefix: 12089 RIPE Region transit ASes present in the Internet Routing Table: 4013 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: 12684 Number of RIPE addresses announced to Internet: 732084992 Equivalent to 43 /8s, 162 /16s and 187 /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: 124953 Total LACNIC prefixes after maximum aggregation: 30215 LACNIC Deaggregation factor: 4.14 Prefixes being announced from the LACNIC address blocks: 121182 Unique aggregates announced from the LACNIC address blocks: 49476 LACNIC Region origin ASes present in the Internet Routing Table: 11283 LACNIC Prefixes per ASN: 10.74 LACNIC Region origin ASes announcing only one prefix: 2649 LACNIC Region transit ASes present in the Internet Routing Table: 2540 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: 9249 Number of LACNIC addresses announced to Internet: 170772480 Equivalent to 10 /8s, 45 /16s and 200 /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: 35066 Total AfriNIC prefixes after maximum aggregation: 6796 AfriNIC Deaggregation factor: 5.16 Prefixes being announced from the AfriNIC address blocks: 48697 Unique aggregates announced from the AfriNIC address blocks: 15799 AfriNIC Region origin ASes present in the Internet Routing Table: 1964 AfriNIC Prefixes per ASN: 24.79 AfriNIC Region origin ASes announcing only one prefix: 718 AfriNIC Region transit ASes present in the Internet Routing Table: 385 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: 104777216 Equivalent to 6 /8s, 62 /16s and 198 /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 13209 8729 114 CHINAMOBILE-CN China Mobile Communication 7545 6139 838 617 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4466 535 310 BBIL-AP BHARTI Airtel Ltd., IN 18403 4446 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3937 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3655 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3293 1868 99 VNPT-AS-VN VNPT Corp, VN 56046 2990 811 177 CMNET-JIANGSU-AP China Mobile communicati 24560 2915 862 506 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4755 2168 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 14360 40863 5379 AMAZON-02, US 11492 4731 314 824 CABLEONE, US 22773 3959 3062 317 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3660 1320 82 SHAW, CA 174 3284 8766 834 COGENT-174, US 396982 3226 3859 443 GOOGLE-CLOUD-PLATFORM, US 749 3219 54766 2470 DNIC-AS-00749, US 16625 3034 1292 2201 AKAMAI-AS, US 4155 2991 232 1755 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 7493 1711 149 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 4021 3395 127 AKAMAI-ASN1, NL 9009 3871 364 2183 M247, RO 12389 3119 2315 866 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2416 172 1749 CDNEXT, GB 34984 2412 361 585 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 12363 3279 576 UNINET, MX 10620 3489 473 1043 Telmex Colombia S.A., CO 13999 2538 511 348 Mega Cable, S.A. de C.V., MX 11830 1989 369 64 Instituto Costarricense de Electricidad y 28573 1377 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1352 789 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1215 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1176 371 22 Telefonica del Peru S.A.A., PE 22884 1060 70 374 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1014 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 1503 1498 379 ETISALAT-MISR, EG 36903 1250 554 97 MT-MPLS, MA 29571 1247 102 38 ORANGE-COTE-IVOIRE, CI 24863 1245 389 20 LINKdotNET-AS, EG 37069 1085 1096 13 MOBINIL, EG 36935 1065 522 45 Vodafone-, EG 20011 576 154 212 NTT-DATA-Inc, ZA 36914 576 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 14360 40863 5379 AMAZON-02, US 9808 13209 8729 114 CHINAMOBILE-CN China Mobile Communication 8151 12363 3279 576 UNINET, MX 12479 7493 1711 149 UNI2-AS, ES 7545 6139 838 617 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4731 314 824 CABLEONE, US 9498 4466 535 310 BBIL-AP BHARTI Airtel Ltd., IN 18403 4446 347 25 FPT-AS-AP FPT Telecom Company, VN 20940 4021 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 13209 13095 CHINAMOBILE-CN China Mobile Communications Grou 8151 12363 11787 UNINET, MX 12479 7493 7344 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 4466 4156 BBIL-AP BHARTI Airtel Ltd., IN 7552 3937 3910 VIETEL-AS-AP Viettel Group, VN 11492 4731 3907 CABLEONE, US 20940 4021 3894 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 215136 UNALLOCATED 5.83.134.0/24 211066 RYZEHOSTING-TRADING, AT 215136 UNALLOCATED 5.175.140.0/24 211066 RYZEHOSTING-TRADING, AT 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 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 OPEN-WIRELESS-01, 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 /15:2149 /16:13766 /17:8213 /18:13463 /19:24583 /20:44281 /21:52014 /22:112502 /23:103535 /24:623385 /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 6563 12363 UNINET, MX 12479 6449 7493 UNI2-AS, ES 11492 3547 4731 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3457 3660 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2505 3959 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2428 14360 AMAZON-02, US 30036 2306 2648 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2207 3489 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) ---------------------------------------------- 1:2419 2:1547 3:935 4:10 5:4811 6:156 7:6 8:1543 9:4 11:172 12:1249 13:564 14:2615 15:398 16:302 17:389 18:903 20:569 21:4 22:188 23:7869 24:2706 25:2 27:2821 29:19 31:3364 32:30 33:1 34:81 35:266 36:4303 37:4541 38:9369 39:1011 40:281 41:4312 42:1960 43:2689 44:379 45:18936 46:5139 47:343 49:1998 50:2057 51:591 52:1607 54:369 55:1055 56:11 57:285 58:2243 59:1281 60:1183 61:2879 62:3057 63:1775 64:5626 65:2138 66:4850 67:3107 68:1071 69:3916 70:1031 71:635 72:2876 74:2821 75:1507 76:600 77:2775 78:1919 79:1759 80:2235 81:2091 82:3313 83:1455 84:1972 85:3494 86:1100 87:2128 88:1354 89:4494 90:804 91:8413 92:2783 93:2981 94:4156 95:4454 96:1468 97:310 98:946 99:747 100:71 101:1216 102:4089 103:32259 104:5295 105:784 106:877 107:2652 108:1223 109:4203 110:2231 111:3653 112:2518 113:1827 114:1990 115:2239 116:2069 117:2785 118:3054 119:1926 120:2197 121:1335 122:2793 123:2250 124:1669 125:2868 126:91 128:1593 129:966 130:1300 131:2144 132:790 133:460 134:1613 135:365 136:1488 137:1329 138:2818 139:1601 140:1623 141:1537 142:1913 143:2024 144:1248 145:608 146:2185 147:2116 148:2719 149:2918 150:1267 151:2390 152:2118 153:629 154:7443 155:2015 156:3505 157:1985 158:1423 159:2563 160:3615 161:1942 162:3913 163:2304 164:1915 165:2577 166:1556 167:2072 168:3840 169:781 170:5363 171:1003 172:4257 173:3404 174:902 175:1341 176:3794 177:4802 178:4117 179:2292 180:2592 181:4188 182:3674 183:2404 184:2069 185:21656 186:5365 187:4675 188:4279 189:4365 190:9659 191:1565 192:11392 193:9459 194:7796 195:5562 196:3307 197:3242 198:6240 199:8669 200:8227 201:6411 202:10428 203:10654 204:4572 205:3675 206:4545 207:3657 208:4262 209:5224 210:4742 211:2665 212:4674 213:3853 214:1039 215:52 216:6862 217:3302 218:1463 219:394 220:2150 221:1215 222:750 223:2835 End of report