IPv4 R&E Routing Table Report 21:10 GMT Mon 11 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: 1044986 Prefixes after maximum aggregation (per Origin AS): 401546 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 516585 Number of IPv4 prefixes with a valid ROA: 634132 Number of IPv4 prefixes with an invalid ROA: 115 Number of IPv4 prefixes with no ROA: 410739 Total ASes present in the Internet Routing Table: 78473 Prefixes per ASN: 13.32 Origin-only ASes present in the Internet Routing Table: 67170 Origin ASes announcing only one prefix: 27440 Transit ASes present in the Internet Routing Table: 11303 Transit-only ASes present in the Internet Routing Table: 592 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: 976 Number of instances of unregistered ASNs: 1006 Number of 32-bit ASNs allocated by the RIRs: 49723 Number of 32-bit ASNs visible in the Routing Table: 40605 Prefixes from 32-bit ASNs in the Routing Table: 229084 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: 428 Number of addresses announced to Internet: 3103381504 Equivalent to 184 /8s, 249 /16s and 216 /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: 341244 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 284262 Total APNIC prefixes after maximum aggregation: 83043 APNIC Deaggregation factor: 3.42 Prefixes being announced from the APNIC address blocks: 270269 Unique aggregates announced from the APNIC address blocks: 107940 APNIC Region origin ASes present in the Internet Routing Table: 15197 APNIC Prefixes per ASN: 17.78 APNIC Region origin ASes announcing only one prefix: 4644 APNIC Region transit ASes present in the Internet Routing Table: 2059 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: 747573504 Equivalent to 44 /8s, 143 /16s and 17 /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: 302925 Total ARIN prefixes after maximum aggregation: 136541 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 302769 Unique aggregates announced from the ARIN address blocks: 147632 ARIN Region origin ASes present in the Internet Routing Table: 19443 ARIN Prefixes per ASN: 15.57 ARIN Region origin ASes announcing only one prefix: 7122 ARIN Region transit ASes present in the Internet Routing Table: 1972 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: 5578 Number of ARIN addresses announced to Internet: 1347734272 Equivalent to 80 /8s, 84 /16s and 203 /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: 290702 Total RIPE prefixes after maximum aggregation: 143450 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 293382 Unique aggregates announced from the RIPE address blocks: 190988 RIPE Region origin ASes present in the Internet Routing Table: 29488 RIPE Prefixes per ASN: 9.95 RIPE Region origin ASes announcing only one prefix: 12215 RIPE Region transit ASes present in the Internet Routing Table: 4081 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: 13414 Number of RIPE addresses announced to Internet: 733683456 Equivalent to 43 /8s, 187 /16s and 31 /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: 128997 Total LACNIC prefixes after maximum aggregation: 30880 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 123367 Unique aggregates announced from the LACNIC address blocks: 50290 LACNIC Region origin ASes present in the Internet Routing Table: 11400 LACNIC Prefixes per ASN: 10.82 LACNIC Region origin ASes announcing only one prefix: 2729 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: 9445 Number of LACNIC addresses announced to Internet: 169758976 Equivalent to 10 /8s, 30 /16s and 81 /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: 37124 Total AfriNIC prefixes after maximum aggregation: 7036 AfriNIC Deaggregation factor: 5.28 Prefixes being announced from the AfriNIC address blocks: 54770 Unique aggregates announced from the AfriNIC address blocks: 19364 AfriNIC Region origin ASes present in the Internet Routing Table: 2024 AfriNIC Prefixes per ASN: 27.06 AfriNIC Region origin ASes announcing only one prefix: 730 AfriNIC Region transit ASes present in the Internet Routing Table: 392 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 62 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1387 Number of AfriNIC addresses announced to Internet: 104419328 Equivalent to 6 /8s, 57 /16s and 80 /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 13868 8761 121 CHINAMOBILE-CN China Mobile Communication 7545 5883 826 482 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4935 551 321 BBIL-AP BHARTI Airtel Ltd., IN 18403 4556 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 4054 1332 28 VIETEL-AS-AP Viettel Group, VN 17561 3725 234 608 LCS-AS-AP LARUS Limited, HK 7713 3691 1044 64 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3531 886 176 CMNET-JIANGSU-AP China Mobile communicati 45899 3360 1868 98 VNPT-AS-VN VNPT Corp, VN 24560 2761 762 733 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 14942 41296 5713 AMAZON-02 - Amazon.com, Inc., US 22773 4783 3115 363 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4624 307 1065 CABLEONE - CABLE ONE, INC., US 7155 3870 286 90 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3718 1305 75 SHAW - Shaw Communications, CA 396982 3335 4865 504 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3138 54728 2389 DNIC-AS-00749 - United States Department 36352 2913 222 912 AS-COLOCROSSING - HostPapa, US 7029 2646 2559 915 WINDSTREAM - Windstream Communications LL 30036 2611 359 456 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 7189 1711 149 UNI2-AS, ES 39891 4975 307 72 ALJAWWALSTC-AS, SA 20940 3917 3389 110 AKAMAI-ASN1, NL 9009 3908 359 2316 M247, RO 12389 3146 2321 874 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2781 204 2052 CDNEXT, GB 34984 2491 367 584 TELLCOM-AS, TR 8452 1690 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 12773 3268 635 UNINET, MX 10620 3430 450 1106 Telmex Colombia S.A., CO 13999 2419 506 350 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 1375 2431 268 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1226 379 23 INTEGRATEL PERU S.A.A., PE 22884 1073 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 1858 1532 338 ETISALAT-MISR, EG 24835 1807 649 36 RAYA-AS, EG 24863 1270 389 16 LINKdotNET-AS, EG 36935 1234 521 43 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 612 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 14942 41296 5713 AMAZON-02 - Amazon.com, Inc., US 9808 13868 8761 121 CHINAMOBILE-CN China Mobile Communication 8151 12773 3268 635 UNINET, MX 12479 7189 1711 149 UNI2-AS, ES 7545 5883 826 482 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 4783 3115 363 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4624 307 1065 CABLEONE - CABLE ONE, INC., US 18403 4556 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 13868 13747 CHINAMOBILE-CN China Mobile Communications Grou 8151 12773 12138 UNINET, MX 12479 7189 7040 UNI2-AS, ES 7545 5883 5401 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4975 4903 ALJAWWALSTC-AS, SA 9498 4935 4614 BBIL-AP BHARTI Airtel Ltd., IN 18403 4556 4531 FPT-AS-AP FPT Telecom Company, VN 22773 4783 4420 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4054 4026 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 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 23.138.188.0/24 Origin: 401371 DEEP-TO-ONE-INC - Deep To One Inc, ZZ 23.138.188.0/24 Transit: 154309 INTELLIGENT1-AS-AP Intelligent Cloud Lim 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 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 /14:1193 /15:2112 /16:13607 /17:8309 /18:13374 /19:25490 /20:45787 /21:52367 /22:113376 /23:108048 /24:660277 /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 6979 12773 UNINET, MX 12479 6126 7189 UNI2-AS, ES 39891 3660 4975 ALJAWWALSTC-AS, SA 6327 3499 3718 SHAW - Shaw Communications, CA 11492 3497 4624 CABLEONE - CABLE ONE, INC., US 22773 3060 4783 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2825 3870 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2700 14942 AMAZON-02 - Amazon.com, Inc., US 30036 2264 2611 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2234 3430 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) ---------------------------------------------- 1:2490 2:2058 3:1002 4:5 5:5096 6:200 7:6 8:1469 9:59 11:172 12:1163 13:699 14:2707 15:465 16:208 17:443 18:920 20:608 21:4 22:188 23:8378 24:2779 25:2 27:2816 28:1 29:19 31:3544 32:36 34:87 35:284 36:4735 37:4443 38:9642 39:1294 40:438 41:4574 42:2169 43:3133 44:450 45:19822 46:4900 47:412 48:129 49:2233 50:2008 51:695 52:1321 54:284 55:1024 56:11 57:322 58:2341 59:1372 60:1175 61:3152 62:3130 63:1684 64:6377 65:2144 66:6124 67:3270 68:1504 69:4215 70:1054 71:616 72:3183 74:3069 75:1501 76:600 77:2937 78:2043 79:1762 80:2319 81:2245 82:4072 83:1459 84:2143 85:3805 86:1097 87:2505 88:1335 89:4774 90:812 91:8475 92:2799 93:3039 94:4399 95:4700 96:1452 97:311 98:945 99:834 100:71 101:1462 102:4540 103:32500 104:5376 105:856 106:900 107:2943 108:1267 109:4254 110:2281 111:4131 112:3178 113:1976 114:2285 115:2328 116:2139 117:3492 118:3045 119:2057 120:2713 121:1556 122:3000 123:2311 124:1655 125:2987 126:126 128:1608 129:977 130:1666 131:2490 132:886 133:486 134:1688 135:609 136:1480 137:1563 138:3407 139:1628 140:1796 141:1749 142:2569 143:2053 144:1777 145:639 146:2193 147:2265 148:2806 149:3149 150:1367 151:2900 152:2342 153:1616 154:9775 155:2303 156:5192 157:2339 158:1578 159:2875 160:3824 161:1969 162:4069 163:2571 164:2423 165:2674 166:1275 167:2297 168:4033 169:869 170:5622 171:1140 172:4798 173:3441 174:890 175:1357 176:3950 177:4846 178:4406 179:2349 180:3053 181:4578 182:4037 183:2837 184:2005 185:21932 186:6124 187:5010 188:4583 189:4543 190:9854 191:1681 192:11538 193:9643 194:7881 195:5835 196:3395 197:3226 198:6285 199:6061 200:8287 201:6396 202:10706 203:10683 204:4789 205:3736 206:4456 207:3983 208:4364 209:5454 210:4780 211:2689 212:5087 213:4044 214:1037 215:47 216:7298 217:3617 218:1709 219:413 220:2188 221:1319 222:937 223:3434 End of report