IPv4 R&E Routing Table Report 21:10 GMT Fri 29 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: 997026 Prefixes after maximum aggregation (per Origin AS): 387200 Deaggregation factor: 2.57 Unique aggregates announced (without unneeded subnets): 492148 Number of IPv4 prefixes with a valid ROA: 566485 Number of IPv4 prefixes with an invalid ROA: 152 Number of IPv4 prefixes with no ROA: 430389 Total ASes present in the Internet Routing Table: 77236 Prefixes per ASN: 12.91 Origin-only ASes present in the Internet Routing Table: 66145 Origin ASes announcing only one prefix: 27014 Transit ASes present in the Internet Routing Table: 11091 Transit-only ASes present in the Internet Routing Table: 558 Paths with bogon ASNs present in the IPv4 Routing Table: 9 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: 1067 Number of instances of unregistered ASNs: 1108 Number of 32-bit ASNs allocated by the RIRs: 47284 Number of 32-bit ASNs visible in the Routing Table: 38877 Prefixes from 32-bit ASNs in the Routing Table: 208914 Number of bogon 32-bit ASNs visible in the Routing Table: 92 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 452 Number of addresses announced to Internet: 3107301888 Equivalent to 185 /8s, 53 /16s and 170 /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: 324997 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 265187 Total APNIC prefixes after maximum aggregation: 78811 APNIC Deaggregation factor: 3.36 Prefixes being announced from the APNIC address blocks: 255670 Unique aggregates announced from the APNIC address blocks: 105133 APNIC Region origin ASes present in the Internet Routing Table: 14772 APNIC Prefixes per ASN: 17.31 APNIC Region origin ASes announcing only one prefix: 4503 APNIC Region transit ASes present in the Internet Routing Table: 1989 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: 10317 Number of APNIC addresses announced to Internet: 750021376 Equivalent to 44 /8s, 180 /16s and 107 /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: 292913 Total ARIN prefixes after maximum aggregation: 133222 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 295108 Unique aggregates announced from the ARIN address blocks: 142452 ARIN Region origin ASes present in the Internet Routing Table: 19280 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: 1982 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: 5309 Number of ARIN addresses announced to Internet: 1349550848 Equivalent to 80 /8s, 112 /16s and 131 /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: 278482 Total RIPE prefixes after maximum aggregation: 137438 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 277728 Unique aggregates announced from the RIPE address blocks: 179376 RIPE Region origin ASes present in the Internet Routing Table: 29039 RIPE Prefixes per ASN: 9.56 RIPE Region origin ASes announcing only one prefix: 12090 RIPE Region transit ASes present in the Internet Routing Table: 3992 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: 12680 Number of RIPE addresses announced to Internet: 732226560 Equivalent to 43 /8s, 164 /16s and 228 /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: 124353 Total LACNIC prefixes after maximum aggregation: 30225 LACNIC Deaggregation factor: 4.11 Prefixes being announced from the LACNIC address blocks: 120590 Unique aggregates announced from the LACNIC address blocks: 49517 LACNIC Region origin ASes present in the Internet Routing Table: 11282 LACNIC Prefixes per ASN: 10.69 LACNIC Region origin ASes announcing only one prefix: 2647 LACNIC Region transit ASes present in the Internet Routing Table: 2553 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: 9248 Number of LACNIC addresses announced to Internet: 170755584 Equivalent to 10 /8s, 45 /16s and 134 /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: 35024 Total AfriNIC prefixes after maximum aggregation: 6802 AfriNIC Deaggregation factor: 5.15 Prefixes being announced from the AfriNIC address blocks: 47477 Unique aggregates announced from the AfriNIC address blocks: 15282 AfriNIC Region origin ASes present in the Internet Routing Table: 1961 AfriNIC Prefixes per ASN: 24.21 AfriNIC Region origin ASes announcing only one prefix: 718 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: 1323 Number of AfriNIC addresses announced to Internet: 104502528 Equivalent to 6 /8s, 58 /16s and 149 /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 12918 8729 114 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 4392 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3943 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3664 1044 68 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3292 1868 99 VNPT-AS-VN VNPT Corp, VN 56046 2975 811 177 CMNET-JIANGSU-AP China Mobile communicati 24560 2916 864 505 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4755 2170 427 183 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 14087 40857 5404 AMAZON-02, US 11492 4744 315 801 CABLEONE, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3651 1320 82 SHAW, CA 22773 3351 3034 179 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 396982 3218 3858 436 GOOGLE-CLOUD-PLATFORM, US 174 3168 8759 842 COGENT-174, US 16625 3046 1296 2210 AKAMAI-AS, US 4155 2962 231 1743 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 7505 1711 150 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 4030 3395 127 AKAMAI-ASN1, NL 9009 3838 364 2177 M247, RO 12389 3118 2315 866 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2405 361 586 TELLCOM-AS, TR 212238 2369 169 1725 CDNEXT, GB 203020 1835 221 843 HOSTROYALE, IN 13188 1606 100 34 TRIOLAN, UA 8452 1602 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 12302 3273 572 UNINET, MX 10620 3486 472 1048 Telmex Colombia S.A., CO 13999 2532 511 347 Mega Cable, S.A. de C.V., MX 11830 1988 369 64 Instituto Costarricense de Electricidad y 28573 1370 2434 262 Claro NXT Telecomunicacoes Ltda, BR 3816 1352 789 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1202 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1179 371 22 Telefonica del Peru S.A.A., PE 22884 1058 70 381 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1011 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 1792 660 28 RAYA-AS, EG 29571 1498 94 37 ORANGE-COTE-IVOIRE, CI 36992 1416 1495 374 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 24863 1242 389 20 LINKdotNET-AS, EG 37069 1085 1096 13 MOBINIL, EG 36935 972 521 42 Vodafone-, EG 20011 576 154 212 INTERNET-SOLUTIONS, ZA 36914 573 82 3 KENET-AS, KE 15399 546 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 14087 40857 5404 AMAZON-02, US 9808 12918 8729 114 CHINAMOBILE-CN China Mobile Communication 8151 12302 3273 572 UNINET, MX 12479 7505 1711 150 UNI2-AS, ES 7545 6139 838 617 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4744 315 801 CABLEONE, US 9498 4467 535 311 BBIL-AP BHARTI Airtel Ltd., IN 18403 4392 347 25 FPT-AS-AP FPT Telecom Company, VN 20940 4030 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 12918 12804 CHINAMOBILE-CN China Mobile Communications Grou 8151 12302 11730 UNINET, MX 12479 7505 7355 UNI2-AS, ES 7545 6139 5522 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4392 4367 FPT-AS-AP FPT Telecom Company, VN 9498 4467 4156 BBIL-AP BHARTI Airtel Ltd., IN 11492 4744 3943 CABLEONE, US 7552 3943 3916 VIETEL-AS-AP Viettel Group, VN 20940 4030 3903 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 23.140.216.0/24 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 23.147.240.0/24 Origin: 32302 RESERVED, ZZ 23.147.240.0/24 Transit: 32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NE 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 /16:13767 /17:8202 /18:13471 /19:24585 /20:44285 /21:51926 /22:112361 /23:103372 /24:620657 /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 6504 12302 UNINET, MX 12479 6456 7505 UNI2-AS, ES 11492 3560 4744 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3448 3651 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2502 3351 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2388 14087 AMAZON-02, US 30036 2319 2662 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2206 3486 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 2:1540 3:917 4:10 5:4819 6:156 7:6 8:1540 9:4 11:172 12:1251 13:502 14:2599 15:390 16:285 17:386 18:902 20:566 21:4 22:188 23:7876 24:2710 25:2 27:2818 29:19 31:3355 32:29 33:1 34:81 35:259 36:4292 37:4534 38:9378 39:993 40:267 41:4324 42:1946 43:2691 44:385 45:18748 46:5128 47:342 49:1993 50:2065 51:591 52:1579 54:358 55:1110 56:11 57:286 58:2246 59:1278 60:1182 61:2870 62:3035 63:1781 64:5606 65:2139 66:4825 67:3101 68:1065 69:3910 70:1030 71:636 72:2854 74:2814 75:1509 76:601 77:2775 78:1920 79:1744 80:2229 81:2091 82:3276 83:1443 84:1923 85:3496 86:1128 87:2132 88:1354 89:4476 90:793 91:8425 92:2770 93:2987 94:4147 95:4452 96:1470 97:310 98:947 99:724 100:71 101:1215 102:4005 103:32299 104:5321 105:760 106:876 107:2658 108:1237 109:4190 110:2229 111:3578 112:2473 113:1827 114:1978 115:2226 116:2076 117:2704 118:3022 119:1922 120:2204 121:1335 122:2808 123:2235 124:1659 125:2882 126:91 128:1594 129:965 130:1298 131:2158 132:782 133:459 134:1620 135:366 136:1472 137:1311 138:2824 139:1597 140:1617 141:1542 142:1905 143:1997 144:1202 145:605 146:2184 147:2110 148:2722 149:2908 150:1247 151:2411 152:2114 153:629 154:7177 155:1973 156:3102 157:1951 158:1474 159:2545 160:3604 161:1940 162:3907 163:2299 164:1909 165:2517 166:1556 167:2063 168:3856 169:784 170:5250 171:996 172:4255 173:3403 174:904 175:1322 176:3789 177:4827 178:4012 179:2298 180:2591 181:4184 182:3627 183:2243 184:2073 185:21647 186:5305 187:4605 188:4312 189:4351 190:9430 191:1533 192:11390 193:9486 194:7789 195:5660 196:3278 197:3223 198:6236 199:8649 200:8201 201:6399 202:10443 203:10661 204:4591 205:3674 206:4525 207:3650 208:4294 209:5218 210:4722 211:2650 212:4635 213:3835 214:1043 215:51 216:6829 217:3300 218:1453 219:392 220:2153 221:1210 222:749 223:2814 End of report