IPv4 R&E Routing Table Report 20:15 GMT Mon 23 Mar, 2026 IPv4 BGP Table (R&E) as seen at KREONet2. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/KREONet2/ Analysis Summary ---------------- BGP routing table entries examined: 289039 Prefixes after maximum aggregation (per Origin AS): 117099 Deaggregation factor: 2.47 Unique aggregates announced (without unneeded subnets): 146446 Number of IPv4 prefixes with a valid ROA: 147720 Number of IPv4 prefixes with an invalid ROA: 215 Number of IPv4 prefixes with no ROA: 141104 Total ASes present in the Internet Routing Table: 20374 Prefixes per ASN: 14.19 Origin-only ASes present in the Internet Routing Table: 17482 Origin ASes announcing only one prefix: 7825 Transit ASes present in the Internet Routing Table: 2892 Transit-only ASes present in the Internet Routing Table: 731 Paths with bogon ASNs present in the IPv4 Routing Table: 12 Average AS path length visible in the Internet Routing Table: 5.9 Max AS path length visible: 35 Max AS path prepend of ASN (273113) 30 Prefixes from unregistered ASNs in the Routing Table: 246 Number of instances of unregistered ASNs: 275 Number of 32-bit ASNs allocated by the RIRs: 49057 Number of 32-bit ASNs visible in the Routing Table: 8360 Prefixes from 32-bit ASNs in the Routing Table: 34711 Number of bogon 32-bit ASNs visible in the Routing Table: 72 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 94 Number of addresses announced to Internet: 1620611493 Equivalent to 96 /8s, 152 /16s and 145 /24s Percentage of available address space announced: 43.8 Percentage of allocated address space announced: 43.8 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: 93131 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 42251 Total APNIC prefixes after maximum aggregation: 7898 APNIC Deaggregation factor: 5.35 Prefixes being announced from the APNIC address blocks: 38930 Unique aggregates announced from the APNIC address blocks: 7654 APNIC Region origin ASes present in the Internet Routing Table: 1222 APNIC Prefixes per ASN: 31.86 APNIC Region origin ASes announcing only one prefix: 497 APNIC Region transit ASes present in the Internet Routing Table: 211 Average APNIC Region AS path length visible: 7.6 Max APNIC Region AS path length visible: 13 Number of APNIC region 32-bit ASNs visible in the Routing Table: 584 Number of APNIC addresses announced to Internet: 168493676 Equivalent to 10 /8s, 11 /16s and 2 /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: 128155 Total ARIN prefixes after maximum aggregation: 65140 ARIN Deaggregation factor: 1.97 Prefixes being announced from the ARIN address blocks: 125147 Unique aggregates announced from the ARIN address blocks: 70762 ARIN Region origin ASes present in the Internet Routing Table: 8953 ARIN Prefixes per ASN: 13.98 ARIN Region origin ASes announcing only one prefix: 3690 ARIN Region transit ASes present in the Internet Routing Table: 846 Average ARIN Region AS path length visible: 5.3 Max ARIN Region AS path length visible: 23 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2157 Number of ARIN addresses announced to Internet: 1017362985 Equivalent to 60 /8s, 163 /16s and 186 /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: 50306 Total RIPE prefixes after maximum aggregation: 25018 RIPE Deaggregation factor: 2.01 Prefixes being announced from the RIPE address blocks: 53458 Unique aggregates announced from the RIPE address blocks: 36868 RIPE Region origin ASes present in the Internet Routing Table: 4466 RIPE Prefixes per ASN: 11.97 RIPE Region origin ASes announcing only one prefix: 1914 RIPE Region transit ASes present in the Internet Routing Table: 711 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 23 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1923 Number of RIPE addresses announced to Internet: 281365328 Equivalent to 16 /8s, 197 /16s and 75 /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: 58605 Total LACNIC prefixes after maximum aggregation: 16759 LACNIC Deaggregation factor: 3.50 Prefixes being announced from the LACNIC address blocks: 56287 Unique aggregates announced from the LACNIC address blocks: 24717 LACNIC Region origin ASes present in the Internet Routing Table: 4597 LACNIC Prefixes per ASN: 12.24 LACNIC Region origin ASes announcing only one prefix: 1614 LACNIC Region transit ASes present in the Internet Routing Table: 919 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 35 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3541 Number of LACNIC addresses announced to Internet: 107852992 Equivalent to 6 /8s, 109 /16s and 180 /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: 9476 Total AfriNIC prefixes after maximum aggregation: 2088 AfriNIC Deaggregation factor: 4.54 Prefixes being announced from the AfriNIC address blocks: 15123 Unique aggregates announced from the AfriNIC address blocks: 6360 AfriNIC Region origin ASes present in the Internet Routing Table: 289 AfriNIC Prefixes per ASN: 52.33 AfriNIC Region origin ASes announcing only one prefix: 110 AfriNIC Region transit ASes present in the Internet Routing Table: 78 Average AfriNIC Region AS path length visible: 6.2 Max AfriNIC Region AS path length visible: 26 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 155 Number of AfriNIC addresses announced to Internet: 45394944 Equivalent to 2 /8s, 180 /16s and 172 /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 13572 8729 120 CHINAMOBILE-CN China Mobile Communication 56046 3414 887 189 CMNET-JIANGSU-AP China Mobile communicati 17561 2373 149 479 LCS-AS-AP LARUS Limited, HK 56041 1805 714 79 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1714 192 50 CMNET-HUNAN-AP China Mobile communication 24444 1062 500 78 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 24547 926 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 56045 910 481 55 CMNET-JIANGXI-AP China Mobile communicati 24445 781 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 2907 667 2153 465 SINET-AS Research Organization of Informa Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14512 41223 5590 AMAZON-02 - Amazon.com, Inc., US 22773 4777 3101 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 749 3140 54728 2391 DNIC-AS-00749 - United States Department 36352 2522 207 987 AS-COLOCROSSING - HostPapa, US 6167 2047 4263 582 CELLCO-PART - Verizon Business, US 11776 1896 257 221 ATLANTICBB-JOHNSTOWN - Breezeline, US 209 1629 4850 259 CENTURYLINK-US-LEGACY-QWEST - CenturyLink 367 1616 1329 744 DNIC-ASBLK-00306-00371 - United States De 19901 1473 739 684 BRIGHTSPEED - Brightspeed, US 20057 1456 1001 113 ATT-MOBILITY-LLC-AS20057 - AT&T Enterpris Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 39891 4901 302 73 ALJAWWALSTC-AS, SA 25019 1283 1335 143 SAUDINETSTC-AS, SA 20940 1255 97 1017 AKAMAI-ASN1, NL 34984 983 145 731 TELLCOM-AS, TR 8452 925 1841 19 TE-AS TE-AS, EG 3215 903 4832 303 France Telecom - Orange, FR 8376 664 54 30 Communications, JO 212238 593 42 527 CDNEXT, GB 51167 565 113 248 CONTABO, DE 35819 552 553 87 MOBILY-AS Etihad Etisalat Company Mobily, Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 7330 1924 798 UNINET, MX 11830 1958 369 65 Instituto Costarricense de Electricidad y 10620 1512 211 1127 Telmex Colombia S.A., CO 11664 1449 278 31 Techtel LMDS Comunicaciones Interactivas 3816 1341 770 214 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1244 371 22 INTEGRATEL PERU S.A.A., PE 26615 1053 2475 94 TIM SA, BR 18881 967 1127 31 TELEFONICA BRASIL S.A, BR 27651 848 140 44 ENTEL CHILE S.A., CL 52468 694 44 209 UFINET PANAMA S.A., PA Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1531 524 27 RAYA-AS, EG 24863 841 389 16 LINKdotNET-AS, EG 37069 763 1100 11 MOBINIL, EG 36914 559 82 3 KENET-AS, KE 36935 540 515 11 Vodafone-, EG 36903 503 233 345 MT-MPLS, MA 29571 432 78 20 ORANGE-COTE-IVOIRE, CI 2018 375 318 69 TENET-1, ZA 36992 367 844 247 ETISALAT-MISR, EG 37693 347 599 43 TUNISIANA, TN Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14512 41223 5590 AMAZON-02 - Amazon.com, Inc., US 9808 13572 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 7330 1924 798 UNINET, MX 39891 4901 302 73 ALJAWWALSTC-AS, SA 22773 4777 3101 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 56046 3414 887 189 CMNET-JIANGSU-AP China Mobile communicati 749 3140 54728 2391 DNIC-AS-00749 - United States Department 36352 2522 207 987 AS-COLOCROSSING - HostPapa, US 17561 2373 149 479 LCS-AS-AP LARUS Limited, HK 6167 2047 4263 582 CELLCO-PART - Verizon Business, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 13572 13452 CHINAMOBILE-CN China Mobile Communications Grou 8151 7330 6532 UNINET, MX 39891 4901 4828 ALJAWWALSTC-AS, SA 22773 4777 4412 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 56046 3414 3225 CMNET-JIANGSU-AP China Mobile communications co 17561 2373 1894 LCS-AS-AP LARUS Limited, HK 11830 1958 1893 Instituto Costarricense de Electricidad y Telec 56041 1805 1726 CMNET-ZHEJIANG-AP China Mobile communications c 11776 1896 1675 ATLANTICBB-JOHNSTOWN - Breezeline, US 56047 1714 1664 CMNET-HUNAN-AP China Mobile communications corp Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE - Phonos 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3 - Level 3 Parent 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4 - AT&T En 397665 UNALLOCATED 12.24.28.0/24 7018 ATT-INTERNET4 - AT&T En 395476 UNALLOCATED 12.36.194.0/24 7018 ATT-INTERNET4 - AT&T En 395476 UNALLOCATED 12.36.195.0/24 3356 LEVEL3 - Level 3 Parent 21861 UNALLOCATED 12.37.59.0/24 7018 ATT-INTERNET4 - AT&T En 33684 UNALLOCATED 12.37.144.0/24 7018 ATT-INTERNET4 - AT&T En 31781 UNALLOCATED 12.71.107.0/24 7018 ATT-INTERNET4 - AT&T En 21861 UNALLOCATED 12.106.212.0/24 7018 ATT-INTERNET4 - AT&T En Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE - Hurricane Electric LLC, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-spar 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: 3257 GTT-BACKBONE GTT, US 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 23.178.24.0/24 Origin: 53850 GORILLASERVERS - GorillaServers, Inc., U 23.178.24.0/24 Transit: 3257 GTT-BACKBONE GTT, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:14 /9:11 /10:31 /11:55 /12:159 /13:217 /14:582 /15:1071 /16:7483 /17:3492 /18:4169 /19:7693 /20:13318 /21:16013 /22:28682 /23:29953 /24:175805 /25:66 /26:83 /27:52 /28:19 /29:7 /30:9 /31:0 /32:55 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 4061 7330 UNINET, MX 39891 3651 4901 ALJAWWALSTC-AS, SA 22773 3049 4777 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 16509 2605 14512 AMAZON-02 - Amazon.com, Inc., US 11830 1667 1958 Instituto Costarricense de Electricidad y Telecom., CR 11664 1138 1449 Techtel LMDS Comunicaciones Interactivas S.A., AR 36352 1078 2522 AS-COLOCROSSING - HostPapa, US 19901 1026 1473 BRIGHTSPEED - Brightspeed, US 209 947 1629 CENTURYLINK-US-LEGACY-QWEST - CenturyLink Communications, LLC, US 10620 924 1512 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:73 2:505 3:1000 4:1 5:1146 6:184 7:5 8:623 9:7 11:172 12:855 13:601 14:119 15:400 16:143 17:3 18:912 20:366 21:4 22:188 23:2905 24:843 27:18 28:1 29:19 31:452 32:13 34:9 35:186 36:3343 37:611 38:2540 39:859 40:47 41:1095 42:21 43:206 44:25 45:4623 46:905 47:172 48:39 49:21 50:500 51:463 52:1099 54:272 55:1118 56:11 57:27 58:41 59:34 60:14 61:59 62:622 63:694 64:2189 65:994 66:2405 67:1121 68:490 69:1205 70:430 71:139 72:697 74:1001 75:267 76:236 77:498 78:539 79:247 80:314 81:420 82:833 83:198 84:344 85:588 86:237 87:187 88:280 89:548 90:98 91:913 92:674 93:874 94:962 95:1292 96:275 97:43 98:383 99:284 100:22 101:26 102:412 103:1155 104:1608 105:154 107:1782 108:518 109:355 110:48 111:2791 112:1298 113:33 114:34 115:7 116:52 117:1633 118:65 119:89 120:2024 121:36 122:43 123:106 124:63 125:23 126:1 128:575 129:369 130:718 131:1274 132:555 133:217 134:503 135:136 136:708 137:600 138:1045 139:457 140:742 141:428 142:1522 143:859 144:502 145:180 146:670 147:503 148:1012 149:727 150:233 151:905 152:833 153:297 154:2304 155:992 156:2091 157:460 158:668 159:833 160:654 161:701 162:979 163:422 164:734 165:639 166:562 167:721 168:1470 169:205 170:1893 171:104 172:1389 173:804 174:269 175:92 176:622 177:1133 178:625 179:919 180:35 181:2603 182:27 183:1714 184:448 185:3220 186:3575 187:1768 188:1028 189:1999 190:6303 191:589 192:5157 193:1690 194:1086 195:909 196:635 197:691 198:2688 199:2493 200:4516 201:3650 202:1025 203:713 204:2201 205:1848 206:1500 207:1705 208:1615 209:2039 210:316 211:512 212:994 213:875 214:970 215:35 216:2476 217:536 218:663 219:18 220:28 221:537 222:30 223:1693 End of report