IPv4 R&E Routing Table Report 21:10 GMT Sat 04 Oct, 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: 1005270 Prefixes after maximum aggregation (per Origin AS): 389792 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 495753 Number of IPv4 prefixes with a valid ROA: 575126 Number of IPv4 prefixes with an invalid ROA: 145 Number of IPv4 prefixes with no ROA: 429999 Total ASes present in the Internet Routing Table: 77334 Prefixes per ASN: 13.00 Origin-only ASes present in the Internet Routing Table: 66225 Origin ASes announcing only one prefix: 27061 Transit ASes present in the Internet Routing Table: 11109 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 ( 59958) 48 Prefixes from unregistered ASNs in the Routing Table: 966 Number of instances of unregistered ASNs: 995 Number of 32-bit ASNs allocated by the RIRs: 47638 Number of 32-bit ASNs visible in the Routing Table: 39047 Prefixes from 32-bit ASNs in the Routing Table: 211084 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: 432 Number of addresses announced to Internet: 3110648576 Equivalent to 185 /8s, 104 /16s and 187 /24s Percentage of available address space announced: 84.0 Percentage of allocated address space announced: 84.0 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: 327825 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 268563 Total APNIC prefixes after maximum aggregation: 79653 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 258453 Unique aggregates announced from the APNIC address blocks: 105783 APNIC Region origin ASes present in the Internet Routing Table: 14811 APNIC Prefixes per ASN: 17.45 APNIC Region origin ASes announcing only one prefix: 4517 APNIC Region transit ASes present in the Internet Routing Table: 1981 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: 10365 Number of APNIC addresses announced to Internet: 750984704 Equivalent to 44 /8s, 195 /16s and 30 /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: 295527 Total ARIN prefixes after maximum aggregation: 133891 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 296976 Unique aggregates announced from the ARIN address blocks: 143006 ARIN Region origin ASes present in the Internet Routing Table: 19328 ARIN Prefixes per ASN: 15.37 ARIN Region origin ASes announcing only one prefix: 7091 ARIN Region transit ASes present in the Internet Routing Table: 1983 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 49 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5348 Number of ARIN addresses announced to Internet: 1351721728 Equivalent to 80 /8s, 145 /16s and 163 /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: 280100 Total RIPE prefixes after maximum aggregation: 138404 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 279674 Unique aggregates announced from the RIPE address blocks: 180694 RIPE Region origin ASes present in the Internet Routing Table: 29059 RIPE Prefixes per ASN: 9.62 RIPE Region origin ASes announcing only one prefix: 12086 RIPE Region transit ASes present in the Internet Routing Table: 4027 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 52 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12742 Number of RIPE addresses announced to Internet: 732951040 Equivalent to 43 /8s, 175 /16s and 242 /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: 125157 Total LACNIC prefixes after maximum aggregation: 30328 LACNIC Deaggregation factor: 4.13 Prefixes being announced from the LACNIC address blocks: 121375 Unique aggregates announced from the LACNIC address blocks: 49478 LACNIC Region origin ASes present in the Internet Routing Table: 11286 LACNIC Prefixes per ASN: 10.75 LACNIC Region origin ASes announcing only one prefix: 2649 LACNIC Region transit ASes present in the Internet Routing Table: 2529 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 42 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9258 Number of LACNIC addresses announced to Internet: 170770944 Equivalent to 10 /8s, 45 /16s and 194 /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: 34957 Total AfriNIC prefixes after maximum aggregation: 6858 AfriNIC Deaggregation factor: 5.10 Prefixes being announced from the AfriNIC address blocks: 48359 Unique aggregates announced from the AfriNIC address blocks: 16406 AfriNIC Region origin ASes present in the Internet Routing Table: 1969 AfriNIC Prefixes per ASN: 24.56 AfriNIC Region origin ASes announcing only one prefix: 718 AfriNIC Region transit ASes present in the Internet Routing Table: 383 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 42 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1334 Number of AfriNIC addresses announced to Internet: 103984128 Equivalent to 6 /8s, 50 /16s and 172 /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 13670 8730 116 CHINAMOBILE-CN China Mobile Communication 7545 6183 835 604 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4518 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4470 536 312 BBIL-AP BHARTI Airtel Ltd., IN 7552 3958 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3725 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3296 1868 99 VNPT-AS-VN VNPT Corp, VN 56046 3116 827 180 CMNET-JIANGSU-AP China Mobile communicati 24560 2925 862 501 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 9304 2359 505 1512 HUTCHISON-AS-AP HGC Global Communications 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 14315 40994 5396 AMAZON-02, US 11492 4752 320 794 CABLEONE, US 22773 3974 3065 337 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3678 1320 82 SHAW, CA 396982 3268 4823 463 GOOGLE-CLOUD-PLATFORM, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3085 239 1715 USDA-1, US 174 3054 8766 793 COGENT-174, US 16625 3047 1303 2216 AKAMAI-AS, 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 7428 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 20940 4041 3395 126 AKAMAI-ASN1, NL 9009 3954 372 2235 M247, RO 12389 3123 2315 867 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2466 176 1790 CDNEXT, GB 34984 2415 363 576 TELLCOM-AS, TR 203020 1851 200 900 HOSTROYALE, IN 8452 1633 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 12379 3278 574 UNINET, MX 10620 3500 474 1069 Telmex Colombia S.A., CO 13999 2544 511 346 Mega Cable, S.A. de C.V., MX 11830 1989 369 64 Instituto Costarricense de Electricidad y 28573 1370 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1354 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1230 278 32 Techtel LMDS Comunicaciones Interactivas 6147 1178 371 23 Telefonica del Peru S.A.A., PE 22884 1067 71 353 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1010 2486 56 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 1770 616 28 RAYA-AS, EG 36992 1508 1498 383 ETISALAT-MISR, EG 24863 1250 389 20 LINKdotNET-AS, EG 36903 1250 554 97 MT-MPLS, MA 29571 1188 102 53 ORANGE-COTE-IVOIRE, CI 37069 1085 1096 13 MOBINIL, EG 36935 950 520 42 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 570 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 14315 40994 5396 AMAZON-02, US 9808 13670 8730 116 CHINAMOBILE-CN China Mobile Communication 8151 12379 3278 574 UNINET, MX 12479 7428 1711 149 UNI2-AS, ES 7545 6183 835 604 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 298 66 ALJAWWALSTC-AS, SA 11492 4752 320 794 CABLEONE, US 18403 4518 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4470 536 312 BBIL-AP BHARTI Airtel Ltd., IN 20940 4041 3395 126 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 13670 13554 CHINAMOBILE-CN China Mobile Communications Grou 8151 12379 11805 UNINET, MX 12479 7428 7279 UNI2-AS, ES 7545 6183 5579 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4767 ALJAWWALSTC-AS, SA 18403 4518 4493 FPT-AS-AP FPT Telecom Company, VN 9498 4470 4158 BBIL-AP BHARTI Airtel Ltd., IN 11492 4752 3958 CABLEONE, US 7552 3958 3930 VIETEL-AS-AP Viettel Group, VN 20940 4041 3915 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 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 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 54739 UNALLOCATED 8.44.198.0/23 13335 CLOUDFLARENET, 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 23.146.204.0/24 Origin: 214696 UNCOLLAPSE-AS, US 23.146.204.0/24 Transit: 53667 PONYNET, 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 /11:93 /12:301 /13:582 /14:1204 /15:2127 /16:13787 /17:8208 /18:13465 /19:24658 /20:44324 /21:51909 /22:112628 /23:104199 /24:627713 /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 6602 12379 UNINET, MX 12479 6394 7428 UNI2-AS, ES 11492 3565 4752 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3467 3678 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2525 3974 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2391 14315 AMAZON-02, US 30036 2290 2630 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2213 3500 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) ---------------------------------------------- 1:2424 2:1555 3:947 4:10 5:4834 6:169 7:6 8:1528 9:6 11:172 12:1242 13:564 14:2637 15:401 16:304 17:389 18:906 20:574 21:4 22:188 23:7925 24:2699 25:2 27:2804 29:19 31:3354 32:31 33:1 34:81 35:267 36:4440 37:4549 38:9496 39:1089 40:295 41:4365 42:2016 43:2727 44:394 45:18878 46:5213 47:342 49:2021 50:2050 51:594 52:1593 54:359 55:1108 56:11 57:285 58:2259 59:1308 60:1188 61:2917 62:3087 63:1767 64:5663 65:2135 66:4952 67:3114 68:1094 69:3950 70:1036 71:640 72:2969 74:2840 75:1495 76:597 77:2774 78:1918 79:1748 80:2248 81:2119 82:3449 83:1475 84:1988 85:3526 86:1101 87:2134 88:1359 89:4485 90:808 91:8380 92:2780 93:2987 94:4162 95:4481 96:1495 97:310 98:952 99:738 100:71 101:1220 102:4162 103:32287 104:5361 105:777 106:895 107:2663 108:1205 109:4228 110:2247 111:3753 112:2650 113:1850 114:1992 115:2340 116:2077 117:2940 118:3056 119:1963 120:2265 121:1357 122:2820 123:2267 124:1659 125:2883 126:93 128:1605 129:963 130:1290 131:2140 132:787 133:461 134:1612 135:365 136:1492 137:1318 138:2812 139:1608 140:1642 141:1542 142:2039 143:2061 144:1272 145:627 146:2184 147:2127 148:2741 149:2917 150:1272 151:2552 152:2173 153:640 154:7366 155:2054 156:3471 157:1997 158:1426 159:2598 160:3577 161:1996 162:3946 163:2297 164:2133 165:2568 166:1561 167:2102 168:3828 169:781 170:5352 171:1021 172:4260 173:3404 174:909 175:1342 176:3802 177:4755 178:4256 179:2302 180:2621 181:4246 182:3726 183:2536 184:2071 185:21675 186:5372 187:4741 188:4314 189:4423 190:9687 191:1530 192:11407 193:9480 194:7796 195:5570 196:3275 197:3244 198:6245 199:8727 200:8222 201:6359 202:10452 203:10590 204:4590 205:3665 206:4438 207:3707 208:4277 209:5360 210:4769 211:2679 212:4801 213:3895 214:1037 215:50 216:6905 217:3353 218:1566 219:394 220:2189 221:1236 222:752 223:3018 End of report