IPv4 R&E Routing Table Report 21:10 GMT Sat 02 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: 1045013 Prefixes after maximum aggregation (per Origin AS): 400590 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 515611 Number of IPv4 prefixes with a valid ROA: 629813 Number of IPv4 prefixes with an invalid ROA: 91 Number of IPv4 prefixes with no ROA: 415109 Total ASes present in the Internet Routing Table: 78354 Prefixes per ASN: 13.34 Origin-only ASes present in the Internet Routing Table: 67072 Origin ASes announcing only one prefix: 27397 Transit ASes present in the Internet Routing Table: 11282 Transit-only ASes present in the Internet Routing Table: 596 Paths with bogon ASNs present in the IPv4 Routing Table: 8 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 68 Max AS path prepend of ASN (269326) 61 Prefixes from unregistered ASNs in the Routing Table: 963 Number of instances of unregistered ASNs: 993 Number of 32-bit ASNs allocated by the RIRs: 49605 Number of 32-bit ASNs visible in the Routing Table: 40480 Prefixes from 32-bit ASNs in the Routing Table: 228624 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: 424 Number of addresses announced to Internet: 3103467264 Equivalent to 184 /8s, 251 /16s and 39 /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: 340910 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 283147 Total APNIC prefixes after maximum aggregation: 82588 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 269412 Unique aggregates announced from the APNIC address blocks: 107631 APNIC Region origin ASes present in the Internet Routing Table: 15136 APNIC Prefixes per ASN: 17.80 APNIC Region origin ASes announcing only one prefix: 4636 APNIC Region transit ASes present in the Internet Routing Table: 2046 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: 10719 Number of APNIC addresses announced to Internet: 747540480 Equivalent to 44 /8s, 142 /16s and 144 /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: 304673 Total ARIN prefixes after maximum aggregation: 136493 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 303980 Unique aggregates announced from the ARIN address blocks: 147456 ARIN Region origin ASes present in the Internet Routing Table: 19427 ARIN Prefixes per ASN: 15.65 ARIN Region origin ASes announcing only one prefix: 7109 ARIN Region transit ASes present in the Internet Routing Table: 1967 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: 5563 Number of ARIN addresses announced to Internet: 1348266496 Equivalent to 80 /8s, 92 /16s and 234 /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: 290098 Total RIPE prefixes after maximum aggregation: 143074 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 293125 Unique aggregates announced from the RIPE address blocks: 190817 RIPE Region origin ASes present in the Internet Routing Table: 29454 RIPE Prefixes per ASN: 9.95 RIPE Region origin ASes announcing only one prefix: 12205 RIPE Region transit ASes present in the Internet Routing Table: 4073 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: 13375 Number of RIPE addresses announced to Internet: 733180928 Equivalent to 43 /8s, 179 /16s and 116 /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: 128850 Total LACNIC prefixes after maximum aggregation: 30798 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 123336 Unique aggregates announced from the LACNIC address blocks: 50331 LACNIC Region origin ASes present in the Internet Routing Table: 11388 LACNIC Prefixes per ASN: 10.83 LACNIC Region origin ASes announcing only one prefix: 2712 LACNIC Region transit ASes present in the Internet Routing Table: 2602 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: 9432 Number of LACNIC addresses announced to Internet: 169929984 Equivalent to 10 /8s, 32 /16s and 237 /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: 37282 Total AfriNIC prefixes after maximum aggregation: 7043 AfriNIC Deaggregation factor: 5.29 Prefixes being announced from the AfriNIC address blocks: 54735 Unique aggregates announced from the AfriNIC address blocks: 19008 AfriNIC Region origin ASes present in the Internet Routing Table: 2026 AfriNIC Prefixes per ASN: 27.02 AfriNIC Region origin ASes announcing only one prefix: 735 AfriNIC Region transit ASes present in the Internet Routing Table: 391 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: 1391 Number of AfriNIC addresses announced to Internet: 104353536 Equivalent to 6 /8s, 56 /16s and 79 /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 13862 8761 121 CHINAMOBILE-CN China Mobile Communication 7545 5883 826 483 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4934 551 321 BBIL-AP BHARTI Airtel Ltd., IN 18403 4533 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 4057 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3677 1044 64 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3534 886 176 CMNET-JIANGSU-AP China Mobile communicati 17561 3490 219 571 LCS-AS-AP LARUS Limited, HK 45899 3359 1868 98 VNPT-AS-VN VNPT Corp, VN 24560 2901 813 659 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 14846 41290 5693 AMAZON-02 - Amazon.com, Inc., US 22773 4777 3115 363 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4652 309 1048 CABLEONE - CABLE ONE, INC., US 7155 3870 286 90 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3726 1305 75 SHAW - Shaw Communications, CA 174 3385 8767 840 COGENT-174 - Cogent Communications, LLC, 396982 3336 4864 505 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3138 54728 2389 DNIC-AS-00749 - United States Department 36352 2716 222 911 AS-COLOCROSSING - HostPapa, US 7029 2637 2561 924 WINDSTREAM - Windstream Communications LL 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 7173 1711 149 UNI2-AS, ES 39891 4943 305 72 ALJAWWALSTC-AS, SA 20940 3918 3389 111 AKAMAI-ASN1, NL 9009 3859 355 2267 M247, RO 12389 3144 2321 873 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2761 201 2036 CDNEXT, GB 34984 2451 365 579 TELLCOM-AS, TR 8452 1725 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 12844 3293 629 UNINET, MX 10620 3429 450 1105 Telmex Colombia S.A., CO 13999 2432 506 350 Mega Cable, S.A. de C.V., MX 11830 1936 369 65 Instituto Costarricense de Electricidad y 11664 1446 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 1229 379 23 INTEGRATEL PERU S.A.A., PE 22884 1071 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 1859 1533 336 ETISALAT-MISR, EG 24863 1270 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1225 520 41 Vodafone-, EG 37069 1116 1100 11 MOBINIL, EG 29571 1071 78 19 ORANGE-COTE-IVOIRE, CI 20011 643 173 262 NTT-DATA-Inc, ZA 328608 572 53 155 Africa-on-Cloud-AS, ZA 3741 555 724 322 NTT-DATA-Inc, ZA 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 14846 41290 5693 AMAZON-02 - Amazon.com, Inc., US 9808 13862 8761 121 CHINAMOBILE-CN China Mobile Communication 8151 12844 3293 629 UNINET, MX 12479 7173 1711 149 UNI2-AS, ES 7545 5883 826 483 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4943 305 72 ALJAWWALSTC-AS, SA 9498 4934 551 321 BBIL-AP BHARTI Airtel Ltd., IN 22773 4777 3115 363 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4652 309 1048 CABLEONE - CABLE ONE, INC., US 18403 4533 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 13862 13741 CHINAMOBILE-CN China Mobile Communications Grou 8151 12844 12215 UNINET, MX 12479 7173 7024 UNI2-AS, ES 7545 5883 5400 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4943 4871 ALJAWWALSTC-AS, SA 9498 4934 4613 BBIL-AP BHARTI Airtel Ltd., IN 18403 4533 4508 FPT-AS-AP FPT Telecom Company, VN 22773 4777 4414 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4057 4029 VIETEL-AS-AP Viettel Group, VN 20940 3918 3807 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 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887 - C 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 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 /15:2111 /16:13618 /17:8313 /18:13365 /19:25492 /20:45780 /21:52420 /22:113626 /23:107586 /24:660465 /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 7045 12844 UNINET, MX 12479 6114 7173 UNI2-AS, ES 39891 3628 4943 ALJAWWALSTC-AS, SA 11492 3517 4652 CABLEONE - CABLE ONE, INC., US 6327 3507 3726 SHAW - Shaw Communications, CA 22773 3056 4777 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2825 3870 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2671 14846 AMAZON-02 - Amazon.com, Inc., US 30036 2275 2621 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) ---------------------------------------------- 1:2478 2:2045 3:1010 4:5 5:5092 6:198 7:6 8:1490 9:43 11:172 12:1183 13:700 14:2702 15:463 16:208 17:441 18:920 20:606 21:4 22:188 23:8236 24:2779 25:2 27:2822 28:1 29:19 31:3485 32:36 34:86 35:284 36:4733 37:4446 38:10171 39:1294 40:438 41:4551 42:2167 43:3112 44:449 45:19782 46:4880 47:413 48:127 49:2234 50:2015 51:693 52:1326 54:290 55:1199 56:11 57:323 58:2339 59:1375 60:1175 61:3134 62:3129 63:1706 64:6371 65:2134 66:6117 67:3267 68:1495 69:4209 70:1051 71:616 72:3179 74:3047 75:1501 76:588 77:2909 78:2003 79:1794 80:2350 81:2242 82:4162 83:1451 84:2146 85:3840 86:1087 87:2492 88:1333 89:4798 90:810 91:8476 92:2821 93:3022 94:4398 95:4729 96:1453 97:316 98:944 99:830 100:70 101:1453 102:4528 103:32393 104:5379 105:856 106:901 107:2881 108:1251 109:4245 110:2281 111:4124 112:3176 113:1974 114:2285 115:2331 116:2146 117:3490 118:3040 119:2056 120:2714 121:1553 122:2993 123:2313 124:1656 125:2985 126:126 128:1608 129:971 130:1661 131:2480 132:884 133:486 134:1671 135:606 136:1543 137:1549 138:3350 139:1623 140:1763 141:1735 142:2547 143:2097 144:1771 145:637 146:2195 147:2247 148:2797 149:3201 150:1376 151:2903 152:2333 153:1566 154:10199 155:2305 156:4925 157:2327 158:1574 159:2863 160:3822 161:1962 162:4049 163:2543 164:2400 165:2667 166:1278 167:2311 168:4024 169:875 170:5573 171:1134 172:4774 173:3459 174:880 175:1356 176:3885 177:4858 178:4390 179:2326 180:3054 181:4564 182:4027 183:2835 184:2010 185:21904 186:6078 187:5005 188:4548 189:4559 190:9849 191:1663 192:11492 193:9635 194:7888 195:5820 196:3403 197:3252 198:6284 199:6063 200:8255 201:6411 202:10674 203:10664 204:4814 205:3743 206:4664 207:4014 208:4389 209:5491 210:4765 211:2687 212:5097 213:4119 214:1045 215:47 216:7293 217:3611 218:1700 219:414 220:2190 221:1317 222:939 223:3433 End of report