IPv4 R&E Routing Table Report 21:10 GMT Sun 03 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: 1045629 Prefixes after maximum aggregation (per Origin AS): 400686 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 515685 Number of IPv4 prefixes with a valid ROA: 639799 Number of IPv4 prefixes with an invalid ROA: 88 Number of IPv4 prefixes with no ROA: 405742 Total ASes present in the Internet Routing Table: 78400 Prefixes per ASN: 13.34 Origin-only ASes present in the Internet Routing Table: 67114 Origin ASes announcing only one prefix: 27410 Transit ASes present in the Internet Routing Table: 11286 Transit-only ASes present in the Internet Routing Table: 593 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: 964 Number of instances of unregistered ASNs: 994 Number of 32-bit ASNs allocated by the RIRs: 49616 Number of 32-bit ASNs visible in the Routing Table: 40516 Prefixes from 32-bit ASNs in the Routing Table: 228763 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: 3103656960 Equivalent to 184 /8s, 254 /16s and 12 /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: 341027 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 283567 Total APNIC prefixes after maximum aggregation: 82727 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 269825 Unique aggregates announced from the APNIC address blocks: 107760 APNIC Region origin ASes present in the Internet Routing Table: 15179 APNIC Prefixes per ASN: 17.78 APNIC Region origin ASes announcing only one prefix: 4653 APNIC Region transit ASes present in the Internet Routing Table: 2050 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: 10757 Number of APNIC addresses announced to Internet: 747573248 Equivalent to 44 /8s, 143 /16s and 16 /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: 304735 Total ARIN prefixes after maximum aggregation: 136508 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 304008 Unique aggregates announced from the ARIN address blocks: 147467 ARIN Region origin ASes present in the Internet Routing Table: 19435 ARIN Prefixes per ASN: 15.64 ARIN Region origin ASes announcing only one prefix: 7108 ARIN Region transit ASes present in the Internet Routing Table: 1974 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: 5567 Number of ARIN addresses announced to Internet: 1348266240 Equivalent to 80 /8s, 92 /16s and 233 /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: 289997 Total RIPE prefixes after maximum aggregation: 143022 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 293061 Unique aggregates announced from the RIPE address blocks: 190765 RIPE Region origin ASes present in the Internet Routing Table: 29455 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: 4072 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: 13372 Number of RIPE addresses announced to Internet: 733232896 Equivalent to 43 /8s, 180 /16s and 63 /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: 129076 Total LACNIC prefixes after maximum aggregation: 30811 LACNIC Deaggregation factor: 4.19 Prefixes being announced from the LACNIC address blocks: 123543 Unique aggregates announced from the LACNIC address blocks: 50346 LACNIC Region origin ASes present in the Internet Routing Table: 11390 LACNIC Prefixes per ASN: 10.85 LACNIC Region origin ASes announcing only one prefix: 2710 LACNIC Region transit ASes present in the Internet Routing Table: 2598 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: 170077696 Equivalent to 10 /8s, 35 /16s and 46 /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: 37290 Total AfriNIC prefixes after maximum aggregation: 7028 AfriNIC Deaggregation factor: 5.31 Prefixes being announced from the AfriNIC address blocks: 54767 Unique aggregates announced from the AfriNIC address blocks: 18979 AfriNIC Region origin ASes present in the Internet Routing Table: 2021 AfriNIC Prefixes per ASN: 27.10 AfriNIC Region origin ASes announcing only one prefix: 734 AfriNIC Region transit ASes present in the Internet Routing Table: 389 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: 1388 Number of AfriNIC addresses announced to Internet: 104311296 Equivalent to 6 /8s, 55 /16s and 170 /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 5884 826 483 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4934 551 321 BBIL-AP BHARTI Airtel Ltd., IN 18403 4549 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 3508 221 581 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 41288 5691 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 2636 2561 923 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 2759 201 2034 CDNEXT, GB 34984 2450 365 580 TELLCOM-AS, TR 8452 1724 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 12849 3294 633 UNINET, MX 10620 3429 450 1105 Telmex Colombia S.A., CO 13999 2436 533 354 Mega Cable, S.A. de C.V., MX 11830 1935 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 26615 1073 2392 100 TIM SA, BR 22884 1071 70 363 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 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 1272 389 16 LINKdotNET-AS, EG 36935 1255 522 44 Vodafone-, EG 36903 1232 555 98 MT-MPLS, MA 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 41288 5691 AMAZON-02 - Amazon.com, Inc., US 9808 13862 8761 121 CHINAMOBILE-CN China Mobile Communication 8151 12849 3294 633 UNINET, MX 12479 7173 1711 149 UNI2-AS, ES 7545 5884 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 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 13862 13741 CHINAMOBILE-CN China Mobile Communications Grou 8151 12849 12216 UNINET, MX 12479 7173 7024 UNI2-AS, ES 7545 5884 5401 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4943 4871 ALJAWWALSTC-AS, SA 9498 4934 4613 BBIL-AP BHARTI Airtel Ltd., IN 18403 4549 4524 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 /15:2112 /16:13618 /17:8315 /18:13364 /19:25500 /20:45811 /21:52449 /22:113690 /23:107830 /24:660703 /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 12849 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) ---------------------------------------------- 1:2485 2:2039 3:1007 4:5 5:5091 6:199 7:6 8:1490 9:43 11:172 12:1183 13:700 14:2703 15:463 16:208 17:441 18:919 20:606 21:4 22:188 23:8242 24:2779 25:2 27:2821 28:1 29:19 31:3485 32:36 34:86 35:284 36:4733 37:4448 38:10169 39:1294 40:438 41:4546 42:2174 43:3111 44:452 45:19785 46:4877 47:413 48:127 49:2235 50:2014 51:677 52:1326 54:290 55:1200 56:11 57:323 58:2340 59:1375 60:1175 61:3134 62:3129 63:1706 64:6340 65:2134 66:6117 67:3267 68:1497 69:4209 70:1052 71:616 72:3176 74:3048 75:1501 76:590 77:2904 78:2013 79:1784 80:2351 81:2238 82:4152 83:1451 84:2147 85:3839 86:1086 87:2484 88:1332 89:4799 90:811 91:8473 92:2822 93:3023 94:4403 95:4728 96:1454 97:316 98:943 99:830 100:70 101:1462 102:4520 103:32473 104:5380 105:863 106:900 107:2881 108:1252 109:4249 110:2280 111:4125 112:3175 113:1973 114:2282 115:2334 116:2145 117:3490 118:3041 119:2063 120:2714 121:1555 122:2993 123:2314 124:1657 125:2986 126:126 128:1608 129:972 130:1664 131:2484 132:891 133:486 134:1672 135:606 136:1541 137:1550 138:3355 139:1624 140:1761 141:1739 142:2550 143:2086 144:1772 145:637 146:2195 147:2247 148:2795 149:3201 150:1374 151:2900 152:2333 153:1568 154:10172 155:2303 156:4968 157:2331 158:1577 159:2861 160:3825 161:1961 162:4053 163:2543 164:2404 165:2665 166:1278 167:2311 168:4027 169:870 170:5573 171:1134 172:4774 173:3459 174:880 175:1356 176:3883 177:4895 178:4392 179:2365 180:3055 181:4564 182:4027 183:2833 184:2015 185:21909 186:6077 187:5020 188:4547 189:4579 190:9846 191:1673 192:11498 193:9636 194:7891 195:5820 196:3404 197:3249 198:6285 199:6063 200:8265 201:6410 202:10684 203:10667 204:4818 205:3737 206:4664 207:4014 208:4388 209:5495 210:4766 211:2687 212:5091 213:4119 214:1044 215:47 216:7296 217:3612 218:1701 219:414 220:2191 221:1317 222:939 223:3433 End of report