IPv4 R&E Routing Table Report 21:10 GMT Sat 09 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: 1045018 Prefixes after maximum aggregation (per Origin AS): 401349 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 516952 Number of IPv4 prefixes with a valid ROA: 641990 Number of IPv4 prefixes with an invalid ROA: 118 Number of IPv4 prefixes with no ROA: 402910 Total ASes present in the Internet Routing Table: 78449 Prefixes per ASN: 13.32 Origin-only ASes present in the Internet Routing Table: 67154 Origin ASes announcing only one prefix: 27434 Transit ASes present in the Internet Routing Table: 11295 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: 49709 Number of 32-bit ASNs visible in the Routing Table: 40587 Prefixes from 32-bit ASNs in the Routing Table: 229268 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: 3103105280 Equivalent to 184 /8s, 245 /16s and 161 /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: 341498 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 283739 Total APNIC prefixes after maximum aggregation: 82981 APNIC Deaggregation factor: 3.42 Prefixes being announced from the APNIC address blocks: 270128 Unique aggregates announced from the APNIC address blocks: 107921 APNIC Region origin ASes present in the Internet Routing Table: 15195 APNIC Prefixes per ASN: 17.78 APNIC Region origin ASes announcing only one prefix: 4652 APNIC Region transit ASes present in the Internet Routing Table: 2055 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: 10777 Number of APNIC addresses announced to Internet: 747654400 Equivalent to 44 /8s, 144 /16s and 77 /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: 303549 Total ARIN prefixes after maximum aggregation: 136572 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 302890 Unique aggregates announced from the ARIN address blocks: 147657 ARIN Region origin ASes present in the Internet Routing Table: 19446 ARIN Prefixes per ASN: 15.58 ARIN Region origin ASes announcing only one prefix: 7118 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: 5578 Number of ARIN addresses announced to Internet: 1347733248 Equivalent to 80 /8s, 84 /16s and 199 /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: 290587 Total RIPE prefixes after maximum aggregation: 143322 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 293778 Unique aggregates announced from the RIPE address blocks: 191453 RIPE Region origin ASes present in the Internet Routing Table: 29473 RIPE Prefixes per ASN: 9.97 RIPE Region origin ASes announcing only one prefix: 12207 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: 13409 Number of RIPE addresses announced to Internet: 733392640 Equivalent to 43 /8s, 182 /16s and 175 /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: 128889 Total LACNIC prefixes after maximum aggregation: 30856 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 123282 Unique aggregates announced from the LACNIC address blocks: 50274 LACNIC Region origin ASes present in the Internet Routing Table: 11395 LACNIC Prefixes per ASN: 10.82 LACNIC Region origin ASes announcing only one prefix: 2725 LACNIC Region transit ASes present in the Internet Routing Table: 2601 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: 9439 Number of LACNIC addresses announced to Internet: 169745408 Equivalent to 10 /8s, 30 /16s and 28 /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: 37278 Total AfriNIC prefixes after maximum aggregation: 7023 AfriNIC Deaggregation factor: 5.31 Prefixes being announced from the AfriNIC address blocks: 54513 Unique aggregates announced from the AfriNIC address blocks: 19278 AfriNIC Region origin ASes present in the Internet Routing Table: 2020 AfriNIC Prefixes per ASN: 26.99 AfriNIC Region origin ASes announcing only one prefix: 732 AfriNIC Region transit ASes present in the Internet Routing Table: 394 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: 1384 Number of AfriNIC addresses announced to Internet: 104383488 Equivalent to 6 /8s, 56 /16s and 196 /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 13867 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 4561 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 4053 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3691 1044 64 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3535 886 176 CMNET-JIANGSU-AP China Mobile communicati 17561 3469 218 584 LCS-AS-AP LARUS Limited, HK 45899 3359 1868 98 VNPT-AS-VN VNPT Corp, VN 24560 2832 785 702 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 14937 41296 5704 AMAZON-02 - Amazon.com, Inc., US 22773 4780 3115 363 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4637 308 1056 CABLEONE - CABLE ONE, INC., US 7155 3867 286 90 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3718 1305 75 SHAW - Shaw Communications, CA 396982 3336 4865 505 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3138 54728 2389 DNIC-AS-00749 - United States Department 36352 2917 222 905 AS-COLOCROSSING - HostPapa, US 7029 2649 2560 918 WINDSTREAM - Windstream Communications LL 30036 2608 358 457 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 7188 1711 149 UNI2-AS, ES 39891 4975 307 72 ALJAWWALSTC-AS, SA 20940 3920 3389 110 AKAMAI-ASN1, NL 9009 3898 358 2307 M247, RO 12389 3146 2321 874 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2769 202 2041 CDNEXT, GB 34984 2499 368 588 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 12768 3266 636 UNINET, MX 10620 3429 450 1105 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 1225 379 23 INTEGRATEL PERU S.A.A., PE 22884 1074 71 363 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 24835 2027 649 36 RAYA-AS, EG 36992 1860 1533 334 ETISALAT-MISR, EG 24863 1270 389 16 LINKdotNET-AS, EG 36935 1237 520 41 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 560 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 14937 41296 5704 AMAZON-02 - Amazon.com, Inc., US 9808 13867 8761 121 CHINAMOBILE-CN China Mobile Communication 8151 12768 3266 636 UNINET, MX 12479 7188 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 4780 3115 363 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4637 308 1056 CABLEONE - CABLE ONE, INC., US 18403 4561 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 13867 13746 CHINAMOBILE-CN China Mobile Communications Grou 8151 12768 12132 UNINET, MX 12479 7188 7039 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 4561 4536 FPT-AS-AP FPT Telecom Company, VN 22773 4780 4417 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4053 4025 VIETEL-AS-AP Viettel Group, VN 20940 3920 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 /14:1192 /15:2111 /16:13609 /17:8308 /18:13360 /19:25481 /20:45786 /21:52393 /22:113618 /23:107997 /24:660117 /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 6975 12768 UNINET, MX 12479 6125 7188 UNI2-AS, ES 39891 3660 4975 ALJAWWALSTC-AS, SA 11492 3505 4637 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 2688 14937 AMAZON-02 - Amazon.com, Inc., US 30036 2261 2608 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) ---------------------------------------------- 1:2490 2:2050 3:1003 4:5 5:5082 6:199 7:6 8:1469 9:43 11:172 12:1171 13:708 14:2707 15:464 16:208 17:441 18:921 20:608 21:4 22:188 23:8370 24:2781 25:2 27:2816 28:1 29:19 31:3537 32:36 34:87 35:284 36:4736 37:4445 38:9626 39:1294 40:439 41:4584 42:2172 43:3134 44:449 45:19782 46:4908 47:413 48:127 49:2231 50:2010 51:687 52:1316 54:282 55:1020 56:11 57:324 58:2342 59:1372 60:1175 61:3152 62:3129 63:1691 64:6388 65:2142 66:6119 67:3266 68:1504 69:4213 70:1054 71:616 72:3177 74:3062 75:1501 76:596 77:2954 78:2034 79:1794 80:2352 81:2245 82:4197 83:1458 84:2157 85:3841 86:1092 87:2504 88:1335 89:4777 90:812 91:8475 92:2802 93:3043 94:4392 95:4748 96:1453 97:311 98:946 99:831 100:70 101:1462 102:4516 103:32516 104:5375 105:856 106:900 107:2940 108:1270 109:4257 110:2282 111:4128 112:3177 113:1975 114:2283 115:2328 116:2142 117:3492 118:3046 119:2060 120:2713 121:1554 122:3000 123:2310 124:1655 125:2987 126:126 128:1607 129:975 130:1662 131:2488 132:891 133:486 134:1690 135:606 136:1543 137:1559 138:3399 139:1624 140:1776 141:1744 142:2565 143:2088 144:1770 145:638 146:2193 147:2261 148:2808 149:3116 150:1368 151:2911 152:2339 153:1623 154:9536 155:2298 156:5012 157:2340 158:1580 159:2874 160:3829 161:1965 162:4073 163:2558 164:2423 165:2669 166:1272 167:2311 168:4036 169:870 170:5610 171:1142 172:4806 173:3462 174:889 175:1354 176:3944 177:4834 178:4420 179:2327 180:3053 181:4580 182:4035 183:2837 184:2002 185:21935 186:6117 187:5008 188:4585 189:4542 190:9803 191:1685 192:11519 193:9635 194:7889 195:5826 196:3402 197:3246 198:6304 199:6077 200:8280 201:6392 202:10707 203:10684 204:4791 205:3749 206:4454 207:3981 208:4364 209:5475 210:4770 211:2689 212:5093 213:4108 214:1038 215:47 216:7298 217:3617 218:1709 219:413 220:2190 221:1319 222:937 223:3434 End of report