IPv4 R&E Routing Table Report 21:10 GMT Mon 25 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: 1048154 Prefixes after maximum aggregation (per Origin AS): 402534 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 517820 Number of IPv4 prefixes with a valid ROA: 658748 Number of IPv4 prefixes with an invalid ROA: 108 Number of IPv4 prefixes with no ROA: 389294 Total ASes present in the Internet Routing Table: 78518 Prefixes per ASN: 13.35 Origin-only ASes present in the Internet Routing Table: 67229 Origin ASes announcing only one prefix: 27491 Transit ASes present in the Internet Routing Table: 11289 Transit-only ASes present in the Internet Routing Table: 583 Paths with bogon ASNs present in the IPv4 Routing Table: 7 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: 1108 Number of instances of unregistered ASNs: 1138 Number of 32-bit ASNs allocated by the RIRs: 49892 Number of 32-bit ASNs visible in the Routing Table: 40688 Prefixes from 32-bit ASNs in the Routing Table: 230305 Number of bogon 32-bit ASNs visible in the Routing Table: 72 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 424 Number of addresses announced to Internet: 3104109824 Equivalent to 185 /8s, 4 /16s and 245 /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: 342935 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 284406 Total APNIC prefixes after maximum aggregation: 83083 APNIC Deaggregation factor: 3.42 Prefixes being announced from the APNIC address blocks: 271010 Unique aggregates announced from the APNIC address blocks: 108072 APNIC Region origin ASes present in the Internet Routing Table: 15193 APNIC Prefixes per ASN: 17.84 APNIC Region origin ASes announcing only one prefix: 4647 APNIC Region transit ASes present in the Internet Routing Table: 2047 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: 10782 Number of APNIC addresses announced to Internet: 747584512 Equivalent to 44 /8s, 143 /16s and 60 /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: 304286 Total ARIN prefixes after maximum aggregation: 137171 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 303098 Unique aggregates announced from the ARIN address blocks: 147811 ARIN Region origin ASes present in the Internet Routing Table: 19438 ARIN Prefixes per ASN: 15.59 ARIN Region origin ASes announcing only one prefix: 7129 ARIN Region transit ASes present in the Internet Routing Table: 1976 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: 5595 Number of ARIN addresses announced to Internet: 1348173312 Equivalent to 80 /8s, 91 /16s and 126 /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: 290942 Total RIPE prefixes after maximum aggregation: 143710 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 294222 Unique aggregates announced from the RIPE address blocks: 191795 RIPE Region origin ASes present in the Internet Routing Table: 29528 RIPE Prefixes per ASN: 9.96 RIPE Region origin ASes announcing only one prefix: 12247 RIPE Region transit ASes present in the Internet Routing Table: 4079 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: 13466 Number of RIPE addresses announced to Internet: 734061568 Equivalent to 43 /8s, 192 /16s and 228 /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: 129861 Total LACNIC prefixes after maximum aggregation: 30856 LACNIC Deaggregation factor: 4.21 Prefixes being announced from the LACNIC address blocks: 124341 Unique aggregates announced from the LACNIC address blocks: 50367 LACNIC Region origin ASes present in the Internet Routing Table: 11411 LACNIC Prefixes per ASN: 10.90 LACNIC Region origin ASes announcing only one prefix: 2735 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: 9449 Number of LACNIC addresses announced to Internet: 169741568 Equivalent to 10 /8s, 30 /16s and 13 /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: 37551 Total AfriNIC prefixes after maximum aggregation: 7071 AfriNIC Deaggregation factor: 5.31 Prefixes being announced from the AfriNIC address blocks: 55058 Unique aggregates announced from the AfriNIC address blocks: 19409 AfriNIC Region origin ASes present in the Internet Routing Table: 2033 AfriNIC Prefixes per ASN: 27.08 AfriNIC Region origin ASes announcing only one prefix: 733 AfriNIC Region transit ASes present in the Internet Routing Table: 391 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: 1396 Number of AfriNIC addresses announced to Internet: 104354816 Equivalent to 6 /8s, 56 /16s and 84 /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 13915 8761 127 AS9808-560 - China Mobile, CN 7545 5874 825 475 TPG-INTERNET-AP - TPG Telecom Limited, AU 9498 4939 552 323 AS9498-250 - Bharti Airtel Limited, IN 18403 4554 347 24 FPT-AP - FPT Telecom Company, VN 7552 4061 1331 26 VIETEL-AS-AP - Viettel Group, VN 7713 3695 1044 64 telkomnet-as-ap - PT Telekomunikasi Indon 56046 3538 886 179 AS56046-751 - China Mobile Communications 17561 3473 218 607 LCS-AS-AP - LARUS Limited, HK 45899 3370 1868 98 VNPT-AS-VN - VNNIC-ASBLOCK-VN, VN 24560 2738 745 734 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 15011 41425 5724 AMAZON-02 - Amazon.com, Inc., US 22773 4767 3114 366 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4592 305 1088 CABLEONE - CABLE ONE, INC., US 7155 3870 286 90 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3724 1305 74 SHAW - Shaw Communications, CA 396982 3352 4865 507 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3138 54728 2389 DNIC-AS-00749 - United States Department 36352 3051 231 1033 AS-COLOCROSSING - HostPapa, US 7029 2639 2558 889 WINDSTREAM - Windstream Communications LL 30036 2539 352 598 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 7135 1711 149 UNI2-AS - Orange Espagne SA, ES 39891 4975 307 72 ALJAWWALSTC-AS - Saudi Telecom Company JS 9009 4071 371 2466 M247 - M247 Europe SRL, RO 20940 3908 3389 110 AKAMAI-ASN1 - Akamai International B.V., 12389 3150 2318 869 ROSTELECOM-AS - PJSC Rostelecom, RU 212238 2855 210 2121 CDNEXT - Datacamp Limited, GB 34984 2489 367 583 TELLCOM-AS - Superonline Iletisim Hizmetl 8452 1723 1852 14 TE-AS - IDDQD-AS, EG 203020 1651 252 825 HostRoyale - HostRoyale Technologies Pvt 44559 1625 102 670 ITHOSTLINE - IT HOSTLINE LTD, CY 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 12756 3254 631 AS8151 - UNINET, MX 10620 3432 450 1101 AS10620 - Telmex Colombia S.A., CO 13999 2355 501 355 AS13999 - Mega Cable, S.A. de C.V., MX 11830 1935 369 65 AS11830 - Instituto Costarricense de Elec 11664 1471 277 34 AS11664 - Techtel LMDS Comunicaciones Int 28573 1364 2431 268 AS28573 - Claro NXT Telecomunicacoes Ltda 3816 1342 770 213 AS3816 - COLOMBIA TELECOMUNICACIONES S.A. 6147 1224 371 22 AS6147 - INTEGRATEL PERU S.A.A., PE 22884 1077 71 364 AS22884 - TOTAL PLAY TELECOMUNICACIONES, 26615 1072 2392 100 AS26615 - TIM S/A, 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 2028 649 36 Vodafone Data - Vodafone Data, EG 36992 1860 1532 337 ETISALAT MISR - ETISALAT MISR, EG 36935 1292 523 45 Vodafone Data - Vodafone Data, EG 24863 1267 389 16 Link Egypt (Link.NET) - Link Egypt (Link. 36903 1232 555 98 Office National des Postes et Telecommuni 37069 1116 1100 11 The Egyptian Company for Mobile Services 29571 1086 70 18 Orange Côte d'Ivoire - Orange Côte d'Iv 20011 643 173 262 Dimension Data - Dimension Data, ZA 328608 636 57 172 Africa on Cloud - Africa on Cloud, ZA 3741 556 724 322 Dimension Data - Dimension Data, 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 15011 41425 5724 AMAZON-02 - Amazon.com, Inc., US 9808 13915 8761 127 AS9808-560 - China Mobile, CN 8151 12756 3254 631 AS8151 - UNINET, MX 12479 7135 1711 149 UNI2-AS - Orange Espagne SA, ES 7545 5874 825 475 TPG-INTERNET-AP - TPG Telecom Limited, AU 39891 4975 307 72 ALJAWWALSTC-AS - Saudi Telecom Company JS 9498 4939 552 323 AS9498-250 - Bharti Airtel Limited, IN 22773 4767 3114 366 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4592 305 1088 CABLEONE - CABLE ONE, INC., US 18403 4554 347 24 FPT-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 13915 13788 AS9808-560 - China Mobile, CN 8151 12756 12125 AS8151 - UNINET, MX 12479 7135 6986 UNI2-AS - Orange Espagne SA, ES 7545 5874 5399 TPG-INTERNET-AP - TPG Telecom Limited, AU 39891 4975 4903 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 9498 4939 4616 AS9498-250 - Bharti Airtel Limited, IN 18403 4554 4530 FPT-AP - FPT Telecom Company, VN 22773 4767 4401 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4061 4035 VIETEL-AS-AP - Viettel Group, VN 20940 3908 3798 AKAMAI-ASN1 - Akamai International B.V., 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 UNASSIGNED 23.131.100.0/24 Transit: 38733 CMCTELECOM-VN - VNNIC-ASBLOCK-VN, VN 23.131.156.0/24 Origin: 401541 UNASSIGNED 23.131.156.0/24 Transit: 38733 CMCTELECOM-VN - VNNIC-ASBLOCK-VN, VN 23.131.212.0/24 Origin: 401541 UNASSIGNED 23.131.212.0/24 Transit: 38733 CMCTELECOM-VN - VNNIC-ASBLOCK-VN, VN 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 - OVH SAS, FR 23.137.200.0/24 Transit: 7575 AARNET-AS-AP - Australian Academic and R 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 /12:298 /13:583 /14:1190 /15:2118 /16:13602 /17:8291 /18:13364 /19:25486 /20:45809 /21:52408 /22:113471 /23:108569 /24:662800 /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 6977 12756 AS8151 - UNINET, MX 12479 6071 7135 UNI2-AS - Orange Espagne SA, ES 39891 3660 4975 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 6327 3506 3724 SHAW - Shaw Communications, CA 11492 3469 4592 CABLEONE - CABLE ONE, INC., US 22773 3064 4767 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2825 3870 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2718 15011 AMAZON-02 - Amazon.com, Inc., US 10620 2236 3432 AS10620 - Telmex Colombia S.A., CO 30036 2194 2539 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US Complete listing at https://bgp.nsrc.org/REN/AARNET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2511 2:2080 3:998 4:5 5:5106 6:203 7:6 8:1475 9:62 11:172 12:1130 13:700 14:2717 15:467 16:215 17:443 18:919 20:611 21:4 22:188 23:8436 24:2774 25:2 27:2806 28:1 29:19 31:3608 32:36 34:87 35:284 36:4774 37:4438 38:9688 39:1305 40:412 41:4554 42:2176 43:3170 44:449 45:19760 46:4898 47:412 48:157 49:2252 50:2023 51:809 52:1336 54:287 55:1103 56:11 57:325 58:2348 59:1366 60:1175 61:3131 62:3142 63:1680 64:6353 65:2146 66:6133 67:3275 68:1517 69:4227 70:1056 71:617 72:3181 74:3071 75:1500 76:597 77:2941 78:2039 79:1786 80:2335 81:2269 82:4177 83:1456 84:2161 85:3849 86:1096 87:2614 88:1316 89:4774 90:793 91:8476 92:2780 93:3032 94:4409 95:4697 96:1445 97:308 98:949 99:841 100:70 101:1465 102:4642 103:32439 104:5437 105:852 106:920 107:2950 108:1280 109:4279 110:2282 111:4123 112:3163 113:2019 114:2533 115:2337 116:2071 117:3589 118:3046 119:2076 120:2729 121:1561 122:3015 123:2231 124:1657 125:2985 126:158 128:1607 129:975 130:1685 131:2441 132:890 133:490 134:1720 135:618 136:1461 137:1564 138:3417 139:1717 140:1845 141:1780 142:2557 143:2039 144:1787 145:635 146:2189 147:2246 148:2794 149:3162 150:1375 151:2941 152:2354 153:1711 154:9535 155:2279 156:5105 157:2440 158:1575 159:2867 160:3856 161:1974 162:4109 163:2617 164:2429 165:2680 166:1266 167:2335 168:4103 169:868 170:5576 171:1138 172:4825 173:3439 174:885 175:1365 176:3936 177:5060 178:4419 179:2377 180:3072 181:4597 182:4048 183:2851 184:2019 185:21837 186:6232 187:5052 188:4520 189:4539 190:9885 191:1999 192:11594 193:9615 194:7862 195:5841 196:3437 197:3240 198:6292 199:6066 200:8293 201:6403 202:10705 203:10692 204:4800 205:3737 206:4445 207:4007 208:4383 209:5491 210:4747 211:2691 212:5086 213:4131 214:1039 215:47 216:7312 217:3625 218:1801 219:415 220:2219 221:1322 222:936 223:3446 End of report