IPv4 R&E Routing Table Report 21:10 GMT Thu 07 May, 2026 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: 1044313 Prefixes after maximum aggregation (per Origin AS): 401103 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 516418 Number of IPv4 prefixes with a valid ROA: 641033 Number of IPv4 prefixes with an invalid ROA: 116 Number of IPv4 prefixes with no ROA: 403164 Total ASes present in the Internet Routing Table: 78439 Prefixes per ASN: 13.31 Origin-only ASes present in the Internet Routing Table: 67145 Origin ASes announcing only one prefix: 27430 Transit ASes present in the Internet Routing Table: 11294 Transit-only ASes present in the Internet Routing Table: 595 Paths with bogon ASNs present in the IPv4 Routing Table: 8 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 68 Max AS path prepend of ASN (269326) 61 Prefixes from unregistered ASNs in the Routing Table: 954 Number of instances of unregistered ASNs: 984 Number of 32-bit ASNs allocated by the RIRs: 49667 Number of 32-bit ASNs visible in the Routing Table: 40568 Prefixes from 32-bit ASNs in the Routing Table: 229022 Number of bogon 32-bit ASNs visible in the Routing Table: 74 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 426 Number of addresses announced to Internet: 3103225088 Equivalent to 184 /8s, 247 /16s and 117 /24s Percentage of available address space announced: 83.8 Percentage of allocated address space announced: 83.8 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: 341386 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 283353 Total APNIC prefixes after maximum aggregation: 82854 APNIC Deaggregation factor: 3.42 Prefixes being announced from the APNIC address blocks: 270032 Unique aggregates announced from the APNIC address blocks: 107883 APNIC Region origin ASes present in the Internet Routing Table: 15188 APNIC Prefixes per ASN: 17.78 APNIC Region origin ASes announcing only one prefix: 4642 APNIC Region transit ASes present in the Internet Routing Table: 2056 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 37 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10768 Number of APNIC addresses announced to Internet: 747585536 Equivalent to 44 /8s, 143 /16s and 64 /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: 303373 Total ARIN prefixes after maximum aggregation: 136536 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 302693 Unique aggregates announced from the ARIN address blocks: 147564 ARIN Region origin ASes present in the Internet Routing Table: 19449 ARIN Prefixes per ASN: 15.56 ARIN Region origin ASes announcing only one prefix: 7124 ARIN Region transit ASes present in the Internet Routing Table: 1973 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: 5571 Number of ARIN addresses announced to Internet: 1347955712 Equivalent to 80 /8s, 88 /16s and 44 /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, 393216-404380 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: 290369 Total RIPE prefixes after maximum aggregation: 143256 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 293587 Unique aggregates announced from the RIPE address blocks: 191294 RIPE Region origin ASes present in the Internet Routing Table: 29466 RIPE Prefixes per ASN: 9.96 RIPE Region origin ASes announcing only one prefix: 12205 RIPE Region transit ASes present in the Internet Routing Table: 4071 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 45 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13403 Number of RIPE addresses announced to Internet: 733390080 Equivalent to 43 /8s, 182 /16s and 165 /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: 129007 Total LACNIC prefixes after maximum aggregation: 30851 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 123368 Unique aggregates announced from the LACNIC address blocks: 50292 LACNIC Region origin ASes present in the Internet Routing Table: 11398 LACNIC Prefixes per ASN: 10.82 LACNIC Region origin ASes announcing only one prefix: 2728 LACNIC Region transit ASes present in the Internet Routing Table: 2605 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 68 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9441 Number of LACNIC addresses announced to Internet: 169778688 Equivalent to 10 /8s, 30 /16s and 158 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-275868 + 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: 37257 Total AfriNIC prefixes after maximum aggregation: 7024 AfriNIC Deaggregation factor: 5.30 Prefixes being announced from the AfriNIC address blocks: 54206 Unique aggregates announced from the AfriNIC address blocks: 19016 AfriNIC Region origin ASes present in the Internet Routing Table: 2018 AfriNIC Prefixes per ASN: 26.86 AfriNIC Region origin ASes announcing only one prefix: 731 AfriNIC Region transit ASes present in the Internet Routing Table: 392 Average AfriNIC Region AS path length visible: 5.1 Max AfriNIC Region AS path length visible: 62 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1385 Number of AfriNIC addresses announced to Internet: 104318976 Equivalent to 6 /8s, 55 /16s and 200 /24s AfriNIC AS Blocks 36864-37887, 327680-330751 & 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 13869 8761 121 CHINAMOBILE-CN China Mobile Communication 7545 5884 826 483 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4935 551 321 BBIL-AP BHARTI Airtel Ltd., IN 18403 4549 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 4061 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3689 1044 64 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3534 886 176 CMNET-JIANGSU-AP China Mobile communicati 45899 3359 1868 98 VNPT-AS-VN VNPT Corp, VN 17561 3078 194 550 LCS-AS-AP LARUS Limited, HK 24560 2832 785 696 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 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 14913 41294 5698 AMAZON-02 - Amazon.com, Inc., US 22773 4780 3115 363 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4652 309 1048 CABLEONE - CABLE ONE, INC., US 7155 3867 286 90 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3718 1305 75 SHAW - Shaw Communications, CA 396982 3337 4864 506 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3138 54728 2389 DNIC-AS-00749 - United States Department 36352 2717 222 912 AS-COLOCROSSING - HostPapa, US 7029 2636 2560 918 WINDSTREAM - Windstream Communications LL 30036 2612 359 452 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom C 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 7187 1711 149 UNI2-AS, ES 39891 4975 307 72 ALJAWWALSTC-AS, SA 20940 3921 3389 111 AKAMAI-ASN1, NL 9009 3879 357 2294 M247, RO 12389 3146 2321 874 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2770 202 2042 CDNEXT, GB 34984 2488 367 594 TELLCOM-AS, TR 8452 1709 1852 14 TE-AS TE-AS, EG 203020 1655 252 831 HOSTROYALE, IN 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 12765 3266 636 UNINET, MX 10620 3429 450 1105 Telmex Colombia S.A., CO 13999 2422 506 351 Mega Cable, S.A. de C.V., MX 11830 1934 369 65 Instituto Costarricense de Electricidad y 11664 1450 277 34 Techtel LMDS Comunicaciones Interactivas 28573 1375 2431 268 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1228 379 23 INTEGRATEL PERU S.A.A., PE 22884 1073 70 363 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1071 2392 100 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 2027 649 36 RAYA-AS, EG 36992 1860 1533 334 ETISALAT-MISR, EG 24863 1271 389 16 LINKdotNET-AS, EG 36935 1238 521 42 Vodafone-, EG 36903 1232 555 98 MT-MPLS, MA 37069 1116 1100 11 MOBINIL, EG 29571 1070 70 18 ORANGE-COTE-IVOIRE, CI 20011 643 173 262 NTT-DATA-Inc, ZA 328608 572 53 155 Africa-on-Cloud-AS, ZA 36914 556 82 3 KENET-AS, 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 14913 41294 5698 AMAZON-02 - Amazon.com, Inc., US 9808 13869 8761 121 CHINAMOBILE-CN China Mobile Communication 8151 12765 3266 636 UNINET, MX 12479 7187 1711 149 UNI2-AS, ES 7545 5884 826 483 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4975 307 72 ALJAWWALSTC-AS, SA 9498 4935 551 321 BBIL-AP BHARTI Airtel Ltd., IN 22773 4780 3115 363 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4652 309 1048 CABLEONE - CABLE ONE, INC., US 18403 4549 347 25 FPT-AS-AP FPT Telecom Company, VN 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 13869 13748 CHINAMOBILE-CN China Mobile Communications Grou 8151 12765 12129 UNINET, MX 12479 7187 7038 UNI2-AS, ES 7545 5884 5401 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4975 4903 ALJAWWALSTC-AS, SA 9498 4935 4614 BBIL-AP BHARTI Airtel Ltd., IN 18403 4549 4524 FPT-AS-AP FPT Telecom Company, VN 22773 4780 4417 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4061 4033 VIETEL-AS-AP Viettel Group, VN 20940 3921 3810 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 395729 UNALLOCATED 8.28.58.0/24 32787 PROLEXIC-TECHNOLOGIES-D 395729 UNALLOCATED 8.28.60.0/24 32787 PROLEXIC-TECHNOLOGIES-D 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3 - Level 3 Parent 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE - Phonos 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3 - Level 3 Parent 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3 - Level 3 Parent 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174 - Cogent Com 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4 - AT&T En 395476 UNALLOCATED 12.36.194.0/24 7018 ATT-INTERNET4 - AT&T En Complete listing at https://bgp.nsrc.org/REN/AARNET/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.137.48.0/24 Origin: 16904 ARVIG-16904 - Arvig Enterprises Inc., US 23.137.48.0/24 Transit: 174 COGENT-174 - Cogent Communications, LLC, 23.137.200.0/24 Origin: 16276 OVH, FR 23.137.200.0/24 Transit: 7575 AARNET-AS-AP Australian Academic and Res 23.140.216.0/24 Origin: 27176 DATAWAGON - DataWagon LLC, US 23.140.216.0/24 Transit: 20278 NEXEON - Nexeon Technologies, Inc., US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS - Charter Communicat 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS - UnReal Servers, LLC, 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 /10:39 /11:95 /12:297 /13:584 /14:1191 /15:2112 /16:13605 /17:8306 /18:13359 /19:25488 /20:45785 /21:52386 /22:113650 /23:107956 /24:659429 /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 6972 12765 UNINET, MX 12479 6124 7187 UNI2-AS, ES 39891 3660 4975 ALJAWWALSTC-AS, SA 11492 3517 4652 CABLEONE - CABLE ONE, INC., US 6327 3499 3718 SHAW - Shaw Communications, CA 22773 3059 4780 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2822 3867 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2685 14913 AMAZON-02 - Amazon.com, Inc., US 30036 2265 2612 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2233 3429 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) ---------------------------------------------- 1:2489 2:2049 3:998 4:5 5:5092 6:200 7:6 8:1470 9:43 11:172 12:1179 13:705 14:2703 15:464 16:208 17:442 18:920 20:607 21:4 22:188 23:8329 24:2779 25:2 27:2821 28:1 29:19 31:3533 32:36 34:86 35:284 36:4734 37:4445 38:9622 39:1295 40:439 41:4581 42:2167 43:3120 44:452 45:19772 46:4906 47:413 48:127 49:2234 50:2009 51:678 52:1317 54:282 55:1022 56:11 57:326 58:2340 59:1373 60:1175 61:3151 62:3128 63:1692 64:6371 65:2140 66:6117 67:3261 68:1502 69:4213 70:1053 71:616 72:3179 74:3059 75:1499 76:597 77:2955 78:2025 79:1793 80:2351 81:2245 82:4197 83:1457 84:2154 85:3841 86:1092 87:2501 88:1336 89:4777 90:813 91:8477 92:2797 93:3044 94:4395 95:4747 96:1454 97:310 98:945 99:828 100:70 101:1463 102:4528 103:32478 104:5350 105:856 106:900 107:2887 108:1270 109:4259 110:2283 111:4128 112:3178 113:1976 114:2283 115:2328 116:2142 117:3494 118:3042 119:2058 120:2715 121:1556 122:2995 123:2306 124:1655 125:2987 126:126 128:1604 129:978 130:1667 131:2483 132:895 133:486 134:1683 135:607 136:1541 137:1563 138:3358 139:1624 140:1773 141:1744 142:2566 143:2099 144:1777 145:638 146:2191 147:2264 148:2810 149:3106 150:1364 151:2904 152:2335 153:1620 154:9415 155:2303 156:4859 157:2338 158:1574 159:2872 160:3829 161:1963 162:4066 163:2551 164:2406 165:2666 166:1278 167:2310 168:4031 169:868 170:5609 171:1137 172:4769 173:3459 174:883 175:1353 176:3920 177:4888 178:4411 179:2341 180:3054 181:4561 182:4036 183:2834 184:2010 185:21928 186:6097 187:5026 188:4581 189:4550 190:9804 191:1686 192:11485 193:9637 194:7890 195:5827 196:3396 197:3223 198:6273 199:6063 200:8270 201:6396 202:10698 203:10681 204:4786 205:3751 206:4524 207:3980 208:4365 209:5476 210:4771 211:2687 212:5097 213:4111 214:1043 215:47 216:7297 217:3622 218:1700 219:414 220:2190 221:1317 222:936 223:3431 End of report