IPv4 R&E Routing Table Report 21:10 GMT Fri 15 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: 1046322 Prefixes after maximum aggregation (per Origin AS): 401728 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 517321 Number of IPv4 prefixes with a valid ROA: 646298 Number of IPv4 prefixes with an invalid ROA: 104 Number of IPv4 prefixes with no ROA: 399920 Total ASes present in the Internet Routing Table: 78466 Prefixes per ASN: 13.33 Origin-only ASes present in the Internet Routing Table: 67201 Origin ASes announcing only one prefix: 27430 Transit ASes present in the Internet Routing Table: 11265 Transit-only ASes present in the Internet Routing Table: 594 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: 1143 Number of instances of unregistered ASNs: 1173 Number of 32-bit ASNs allocated by the RIRs: 49765 Number of 32-bit ASNs visible in the Routing Table: 40621 Prefixes from 32-bit ASNs in the Routing Table: 229948 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: 449 Number of addresses announced to Internet: 3103237632 Equivalent to 184 /8s, 247 /16s and 166 /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: 342646 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 283841 Total APNIC prefixes after maximum aggregation: 83076 APNIC Deaggregation factor: 3.42 Prefixes being announced from the APNIC address blocks: 270334 Unique aggregates announced from the APNIC address blocks: 107958 APNIC Region origin ASes present in the Internet Routing Table: 15196 APNIC Prefixes per ASN: 17.79 APNIC Region origin ASes announcing only one prefix: 4646 APNIC Region transit ASes present in the Internet Routing Table: 2054 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: 10781 Number of APNIC addresses announced to Internet: 747335680 Equivalent to 44 /8s, 139 /16s and 112 /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: 303543 Total ARIN prefixes after maximum aggregation: 136690 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 302906 Unique aggregates announced from the ARIN address blocks: 147735 ARIN Region origin ASes present in the Internet Routing Table: 19428 ARIN Prefixes per ASN: 15.59 ARIN Region origin ASes announcing only one prefix: 7111 ARIN Region transit ASes present in the Internet Routing Table: 1963 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: 5583 Number of ARIN addresses announced to Internet: 1347584768 Equivalent to 80 /8s, 82 /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, 393216-404380 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: 290634 Total RIPE prefixes after maximum aggregation: 143441 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 293870 Unique aggregates announced from the RIPE address blocks: 191543 RIPE Region origin ASes present in the Internet Routing Table: 29484 RIPE Prefixes per ASN: 9.97 RIPE Region origin ASes announcing only one prefix: 12216 RIPE Region transit ASes present in the Internet Routing Table: 4075 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 37 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13419 Number of RIPE addresses announced to Internet: 734134272 Equivalent to 43 /8s, 194 /16s and 0 /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: 129987 Total LACNIC prefixes after maximum aggregation: 30807 LACNIC Deaggregation factor: 4.22 Prefixes being announced from the LACNIC address blocks: 124393 Unique aggregates announced from the LACNIC address blocks: 50343 LACNIC Region origin ASes present in the Internet Routing Table: 11397 LACNIC Prefixes per ASN: 10.91 LACNIC Region origin ASes announcing only one prefix: 2727 LACNIC Region transit ASes present in the Internet Routing Table: 2599 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: 9445 Number of LACNIC addresses announced to Internet: 169680896 Equivalent to 10 /8s, 29 /16s and 32 /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: 37174 Total AfriNIC prefixes after maximum aggregation: 7050 AfriNIC Deaggregation factor: 5.27 Prefixes being announced from the AfriNIC address blocks: 54369 Unique aggregates announced from the AfriNIC address blocks: 19360 AfriNIC Region origin ASes present in the Internet Routing Table: 2028 AfriNIC Prefixes per ASN: 26.81 AfriNIC Region origin ASes announcing only one prefix: 730 AfriNIC Region transit ASes present in the Internet Routing Table: 383 Average AfriNIC Region AS path length visible: 4.9 Max AfriNIC Region AS path length visible: 62 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1393 Number of AfriNIC addresses announced to Internet: 104301568 Equivalent to 6 /8s, 55 /16s and 132 /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 13894 8761 121 CHINAMOBILE-CN China Mobile Communication 7545 5884 826 482 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4935 551 328 BBIL-AP BHARTI Airtel Ltd., IN 18403 4547 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4066 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3693 1044 64 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3538 886 176 CMNET-JIANGSU-AP China Mobile communicati 17561 3442 216 599 LCS-AS-AP LARUS Limited, HK 45899 3362 1868 98 VNPT-AS-VN VNPT Corp, VN 24560 2734 744 740 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 14946 41324 5711 AMAZON-02 - Amazon.com, Inc., US 22773 4790 3116 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4591 305 1089 CABLEONE - CABLE ONE, INC., US 7155 3870 286 90 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3717 1305 75 SHAW - Shaw Communications, CA 396982 3343 4865 507 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3139 54728 2390 DNIC-AS-00749 - United States Department 36352 2908 222 920 AS-COLOCROSSING - HostPapa, US 7029 2637 2558 894 WINDSTREAM - Windstream Communications LL 30036 2603 359 479 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 7130 1711 149 UNI2-AS, ES 39891 4975 307 72 ALJAWWALSTC-AS, SA 20940 3917 3389 110 AKAMAI-ASN1, NL 9009 3914 360 2321 M247, RO 12389 3140 2321 871 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2794 205 2065 CDNEXT, GB 34984 2491 367 584 TELLCOM-AS, TR 8452 1694 1852 14 TE-AS TE-AS, EG 203020 1653 252 830 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 12745 3254 632 UNINET, MX 10620 3434 450 1103 Telmex Colombia S.A., CO 13999 2360 498 345 Mega Cable, S.A. de C.V., MX 11830 1937 369 65 Instituto Costarricense de Electricidad y 11664 1450 277 34 Techtel LMDS Comunicaciones Interactivas 28573 1367 2431 268 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1227 371 22 INTEGRATEL PERU S.A.A., PE 22884 1075 70 363 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1073 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 36992 1860 1532 340 ETISALAT-MISR, EG 24835 1807 649 36 RAYA-AS, EG 24863 1270 389 16 LINKdotNET-AS, EG 36935 1262 523 45 Vodafone-, EG 36903 1231 555 97 MT-MPLS, MA 37069 1116 1100 11 MOBINIL, EG 29571 1077 70 18 ORANGE-COTE-IVOIRE, CI 20011 643 173 262 NTT-DATA-Inc, ZA 328608 614 56 160 Africa-on-Cloud-AS, ZA 3741 553 724 322 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 14946 41324 5711 AMAZON-02 - Amazon.com, Inc., US 9808 13894 8761 121 CHINAMOBILE-CN China Mobile Communication 8151 12745 3254 632 UNINET, MX 12479 7130 1711 149 UNI2-AS, ES 7545 5884 826 482 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4975 307 72 ALJAWWALSTC-AS, SA 9498 4935 551 328 BBIL-AP BHARTI Airtel Ltd., IN 22773 4790 3116 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4591 305 1089 CABLEONE - CABLE ONE, INC., US 18403 4547 347 24 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 13894 13773 CHINAMOBILE-CN China Mobile Communications Grou 8151 12745 12113 UNINET, MX 12479 7130 6981 UNI2-AS, ES 7545 5884 5402 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4975 4903 ALJAWWALSTC-AS, SA 9498 4935 4607 BBIL-AP BHARTI Airtel Ltd., IN 18403 4547 4523 FPT-AS-AP FPT Telecom Company, VN 22773 4790 4425 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4066 4038 VIETEL-AS-AP Viettel Group, VN 20940 3917 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 46198 UNALLOCATED 8.10.6.0/24 23520 LIBERTY-NETWORKS - Colu 46198 UNALLOCATED 8.10.7.0/24 23520 LIBERTY-NETWORKS - Colu 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 400273 UNALLOCATED 8.41.137.0/24 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 Complete listing at https://bgp.nsrc.org/REN/AARNET/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.131.100.0/24 Origin: 401541 OSIE - Osie, ZZ 23.131.100.0/24 Transit: 38733 CMCTELECOM-VN CMC Telecom Infrastructure 23.131.156.0/24 Origin: 401541 OSIE - Osie, ZZ 23.131.156.0/24 Transit: 38733 CMCTELECOM-VN CMC Telecom Infrastructure 23.131.212.0/24 Origin: 401541 OSIE - Osie, ZZ 23.131.212.0/24 Transit: 38733 CMCTELECOM-VN CMC Telecom Infrastructure 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 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 /13:583 /14:1190 /15:2114 /16:13597 /17:8294 /18:13363 /19:25485 /20:45758 /21:52386 /22:113358 /23:108351 /24:661381 /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 6964 12745 UNINET, MX 12479 6067 7130 UNI2-AS, ES 39891 3660 4975 ALJAWWALSTC-AS, SA 6327 3498 3717 SHAW - Shaw Communications, CA 11492 3468 4591 CABLEONE - CABLE ONE, INC., US 22773 3065 4790 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2825 3870 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2706 14946 AMAZON-02 - Amazon.com, Inc., US 30036 2257 2603 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2238 3434 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) ---------------------------------------------- 1:2505 2:2081 3:1002 4:5 5:5115 6:201 7:6 8:1470 9:59 11:172 12:1147 13:691 14:2702 15:466 16:209 17:443 18:916 20:608 21:4 22:188 23:8390 24:2771 25:2 27:2822 28:1 29:19 31:3565 32:36 34:85 35:283 36:4772 37:4445 38:9655 39:1298 40:442 41:4556 42:2182 43:3158 44:454 45:19826 46:4885 47:412 48:129 49:2234 50:2008 51:730 52:1327 54:288 55:1109 56:11 57:323 58:2339 59:1371 60:1175 61:3155 62:3113 63:1690 64:6387 65:2148 66:6131 67:3268 68:1509 69:4222 70:1054 71:616 72:3188 74:3057 75:1501 76:598 77:2946 78:2052 79:1792 80:2345 81:2251 82:4169 83:1458 84:2161 85:3838 86:1095 87:2500 88:1337 89:4775 90:796 91:8462 92:2788 93:3039 94:4400 95:4739 96:1445 97:309 98:949 99:833 100:70 101:1462 102:4576 103:32481 104:5392 105:850 106:901 107:2948 108:1270 109:4272 110:2282 111:4124 112:3185 113:1989 114:2384 115:2327 116:2093 117:3490 118:3038 119:2047 120:2733 121:1556 122:3011 123:2304 124:1654 125:2986 126:158 128:1598 129:982 130:1677 131:2501 132:888 133:486 134:1720 135:616 136:1480 137:1563 138:3396 139:1632 140:1774 141:1751 142:2574 143:2049 144:1785 145:638 146:2192 147:2253 148:2796 149:3151 150:1366 151:2909 152:2341 153:1676 154:9507 155:2294 156:4999 157:2342 158:1577 159:2872 160:3832 161:1971 162:4081 163:2592 164:2427 165:2678 166:1282 167:2319 168:4036 169:869 170:5607 171:1138 172:4806 173:3464 174:883 175:1355 176:3957 177:5048 178:4404 179:2387 180:3059 181:4559 182:4042 183:2838 184:2022 185:21927 186:6174 187:5059 188:4512 189:4534 190:9904 191:1998 192:11527 193:9645 194:7888 195:5830 196:3408 197:3234 198:6295 199:6045 200:8275 201:6403 202:10695 203:10664 204:4803 205:3740 206:4437 207:3999 208:4372 209:5490 210:4769 211:2689 212:5087 213:4132 214:1042 215:47 216:7300 217:3613 218:1709 219:413 220:2187 221:1320 222:939 223:3443 End of report