IPv4 R&E Routing Table Report 20:15 GMT Mon 26 Jan, 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: 288274 Prefixes after maximum aggregation (per Origin AS): 118757 Deaggregation factor: 2.43 Unique aggregates announced (without unneeded subnets): 148893 Number of IPv4 prefixes with a valid ROA: 146024 Number of IPv4 prefixes with an invalid ROA: 203 Number of IPv4 prefixes with no ROA: 142047 Total ASes present in the Internet Routing Table: 20683 Prefixes per ASN: 13.94 Origin-only ASes present in the Internet Routing Table: 17805 Origin ASes announcing only one prefix: 8022 Transit ASes present in the Internet Routing Table: 2878 Transit-only ASes present in the Internet Routing Table: 732 Paths with bogon ASNs present in the IPv4 Routing Table: 9 Average AS path length visible in the Internet Routing Table: 5.9 Max AS path length visible: 38 Max AS path prepend of ASN ( 37447) 34 Prefixes from unregistered ASNs in the Routing Table: 244 Number of instances of unregistered ASNs: 273 Number of 32-bit ASNs allocated by the RIRs: 48505 Number of 32-bit ASNs visible in the Routing Table: 8469 Prefixes from 32-bit ASNs in the Routing Table: 34670 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: 97 Number of addresses announced to Internet: 1612305349 Equivalent to 96 /8s, 25 /16s and 211 /24s Percentage of available address space announced: 43.5 Percentage of allocated address space announced: 43.5 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: 92932 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 43292 Total APNIC prefixes after maximum aggregation: 8968 APNIC Deaggregation factor: 4.83 Prefixes being announced from the APNIC address blocks: 39957 Unique aggregates announced from the APNIC address blocks: 9185 APNIC Region origin ASes present in the Internet Routing Table: 1326 APNIC Prefixes per ASN: 30.13 APNIC Region origin ASes announcing only one prefix: 555 APNIC Region transit ASes present in the Internet Routing Table: 228 Average APNIC Region AS path length visible: 7.6 Max APNIC Region AS path length visible: 19 Number of APNIC region 32-bit ASNs visible in the Routing Table: 646 Number of APNIC addresses announced to Internet: 170852972 Equivalent to 10 /8s, 47 /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: 126266 Total ARIN prefixes after maximum aggregation: 64810 ARIN Deaggregation factor: 1.95 Prefixes being announced from the ARIN address blocks: 123827 Unique aggregates announced from the ARIN address blocks: 70406 ARIN Region origin ASes present in the Internet Routing Table: 9105 ARIN Prefixes per ASN: 13.60 ARIN Region origin ASes announcing only one prefix: 3783 ARIN Region transit ASes present in the Internet Routing Table: 849 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: 2182 Number of ARIN addresses announced to Internet: 1008046633 Equivalent to 60 /8s, 21 /16s and 146 /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, 393216-402332 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: 51471 Total RIPE prefixes after maximum aggregation: 26105 RIPE Deaggregation factor: 1.97 Prefixes being announced from the RIPE address blocks: 54145 Unique aggregates announced from the RIPE address blocks: 37541 RIPE Region origin ASes present in the Internet Routing Table: 4518 RIPE Prefixes per ASN: 11.98 RIPE Region origin ASes announcing only one prefix: 1931 RIPE Region transit ASes present in the Internet Routing Table: 684 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 22 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1903 Number of RIPE addresses announced to Internet: 280725456 Equivalent to 16 /8s, 187 /16s and 135 /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: 56484 Total LACNIC prefixes after maximum aggregation: 16358 LACNIC Deaggregation factor: 3.45 Prefixes being announced from the LACNIC address blocks: 54345 Unique aggregates announced from the LACNIC address blocks: 24247 LACNIC Region origin ASes present in the Internet Routing Table: 4593 LACNIC Prefixes per ASN: 11.83 LACNIC Region origin ASes announcing only one prefix: 1637 LACNIC Region transit ASes present in the Internet Routing Table: 913 Average LACNIC Region AS path length visible: 6.1 Max LACNIC Region AS path length visible: 30 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3577 Number of LACNIC addresses announced to Internet: 106623072 Equivalent to 6 /8s, 90 /16s and 240 /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: 10517 Total AfriNIC prefixes after maximum aggregation: 2324 AfriNIC Deaggregation factor: 4.53 Prefixes being announced from the AfriNIC address blocks: 15903 Unique aggregates announced from the AfriNIC address blocks: 7427 AfriNIC Region origin ASes present in the Internet Routing Table: 298 AfriNIC Prefixes per ASN: 53.37 AfriNIC Region origin ASes announcing only one prefix: 116 AfriNIC Region transit ASes present in the Internet Routing Table: 81 Average AfriNIC Region AS path length visible: 6.5 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 161 Number of AfriNIC addresses announced to Internet: 45915136 Equivalent to 2 /8s, 188 /16s and 156 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & 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 13349 8729 120 CHINAMOBILE-CN China Mobile Communication 56046 3357 832 195 CMNET-JIANGSU-AP China Mobile communicati 17561 2224 140 500 LCS-AS-AP LARUS Limited, HK 56041 1765 714 79 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1709 192 50 CMNET-HUNAN-AP China Mobile communication 24444 1055 500 78 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 56045 908 481 55 CMNET-JIANGXI-AP China Mobile communicati 24547 900 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24445 767 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 666 1167 154 ALIBABA-CN-NET Alibaba US Technology Co., 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 14005 38809 5443 AMAZON-02 - Amazon.com, Inc., US 22773 4777 3100 364 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 749 3142 54729 2393 DNIC-AS-00749 - United States Department 36352 2418 200 1149 AS-COLOCROSSING - HostPapa, US 6167 1974 4173 531 CELLCO-PART - Verizon Business, US 11776 1905 259 213 ATLANTICBB-JOHNSTOWN - Breezeline, US 367 1713 1499 787 DNIC-ASBLK-00306-00371 - United States De 209 1639 4882 263 CENTURYLINK-US-LEGACY-QWEST - CenturyLink 19901 1483 728 696 BRIGHTSPEED - Brightspeed, US 20057 1442 1017 111 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 4969 306 72 ALJAWWALSTC-AS, SA 20940 1245 95 1014 AKAMAI-ASN1, NL 25019 1149 1335 138 SAUDINETSTC-AS, SA 34984 984 151 739 TELLCOM-AS, TR 8452 903 1841 17 TE-AS TE-AS, EG 3215 900 4820 300 France Telecom - Orange, FR 212238 700 49 615 CDNEXT, GB 51167 565 113 248 CONTABO, DE 8376 552 53 25 Jordan Data Communications, JO 5511 528 98 448 OPENTRANSIT, FR 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 7287 1938 784 UNINET, MX 11830 1991 369 65 Instituto Costarricense de Electricidad y 10620 1519 211 1131 Telmex Colombia S.A., CO 11664 1396 278 31 Techtel LMDS Comunicaciones Interactivas 3816 1339 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1258 371 22 INTEGRATEL PERU S.A.A., PE 26615 1012 2486 56 TIM SA, BR 18881 909 1127 31 TELEFONICA BRASIL S.A, BR 27651 849 140 44 ENTEL CHILE S.A., CL 12252 682 164 24 America Movil Peru S.A.C., PE 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 1451 463 90 RAYA-AS, EG 37069 1095 1100 11 MOBINIL, EG 24863 947 389 16 LINKdotNET-AS, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 569 82 3 KENET-AS, KE 36935 510 515 10 Vodafone-, EG 36903 503 233 345 MT-MPLS, MA 29571 422 78 20 ORANGE-COTE-IVOIRE, CI 36992 385 870 245 ETISALAT-MISR, EG 2018 375 318 69 TENET-1, ZA 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 14005 38809 5443 AMAZON-02 - Amazon.com, Inc., US 9808 13349 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 7287 1938 784 UNINET, MX 39891 4969 306 72 ALJAWWALSTC-AS, SA 22773 4777 3100 364 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 56046 3357 832 195 CMNET-JIANGSU-AP China Mobile communicati 749 3142 54729 2393 DNIC-AS-00749 - United States Department 36352 2418 200 1149 AS-COLOCROSSING - HostPapa, US 17561 2224 140 500 LCS-AS-AP LARUS Limited, HK 11830 1991 369 65 Instituto Costarricense de Electricidad y 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 13349 13229 CHINAMOBILE-CN China Mobile Communications Grou 8151 7287 6503 UNINET, MX 39891 4969 4897 ALJAWWALSTC-AS, SA 22773 4777 4413 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 56046 3357 3162 CMNET-JIANGSU-AP China Mobile communications co 11830 1991 1926 Instituto Costarricense de Electricidad y Telec 17561 2224 1724 LCS-AS-AP LARUS Limited, HK 11776 1905 1692 ATLANTICBB-JOHNSTOWN - Breezeline, US 56041 1765 1686 CMNET-ZHEJIANG-AP China Mobile communications c 56047 1709 1659 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 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 26295 UNALLOCATED 12.110.210.0/23 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 23.155.185.0/24 Origin: 401541 OSIE - Osie, US 23.155.185.0/24 Transit: 397423 TIER-NET - Tier.Net Technologies LLC, US 23.157.217.0/24 Origin: 401541 OSIE - Osie, US 23.157.217.0/24 Transit: 397423 TIER-NET - Tier.Net Technologies LLC, 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 /11:52 /12:159 /13:213 /14:576 /15:1065 /16:7486 /17:3473 /18:4152 /19:7643 /20:13135 /21:16166 /22:28558 /23:29749 /24:175560 /25:61 /26:80 /27:50 /28:18 /29:7 /30:9 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 4001 7287 UNINET, MX 39891 3655 4969 ALJAWWALSTC-AS, SA 22773 3050 4777 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 16509 2477 14005 AMAZON-02 - Amazon.com, Inc., US 11830 1695 1991 Instituto Costarricense de Electricidad y Telecom., CR 11664 1082 1396 Techtel LMDS Comunicaciones Interactivas S.A., AR 19901 1052 1483 BRIGHTSPEED - Brightspeed, US 36352 1015 2418 AS-COLOCROSSING - HostPapa, US 209 953 1639 CENTURYLINK-US-LEGACY-QWEST - CenturyLink Communications, LLC, US 10620 931 1519 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) ---------------------------------------------- 1:72 2:466 3:962 4:5 5:1163 6:173 7:5 8:637 9:5 11:172 12:877 13:564 14:177 15:361 16:154 17:3 18:909 20:158 21:4 22:188 23:2851 24:662 27:47 29:19 31:517 32:13 34:7 35:182 36:3326 37:642 38:2322 39:835 40:250 41:1109 42:23 43:204 44:29 45:4531 46:935 47:166 48:20 49:21 50:498 51:522 52:1080 54:231 55:1037 56:11 57:33 58:44 59:42 60:74 61:58 62:612 63:723 64:2164 65:989 66:2410 67:1090 68:487 69:1210 70:441 71:156 72:713 74:980 75:293 76:240 77:394 78:574 79:242 80:352 81:419 82:824 83:207 84:346 85:640 86:235 87:211 88:278 89:579 90:104 91:930 92:684 93:897 94:980 95:1314 96:286 97:45 98:391 99:270 100:22 101:22 102:509 103:1288 104:1690 105:133 106:3 107:1648 108:515 109:365 110:104 111:2759 112:1300 113:33 114:34 115:54 116:57 117:1517 118:70 119:90 120:1932 121:36 122:78 123:127 124:69 125:50 128:626 129:371 130:717 131:1180 132:555 133:218 134:498 135:136 136:741 137:610 138:1027 139:447 140:759 141:427 142:1468 143:879 144:487 145:199 146:686 147:466 148:1026 149:741 150:226 151:890 152:728 153:274 154:2368 155:1043 156:2038 157:488 158:649 159:839 160:632 161:719 162:986 163:419 164:735 165:617 166:564 167:709 168:1491 169:201 170:1823 171:102 172:1575 173:791 174:274 175:99 176:658 177:999 178:653 179:887 180:45 181:2529 182:23 183:1620 184:435 185:3377 186:3447 187:1721 188:1064 189:1982 190:5945 191:540 192:5086 193:1704 194:1116 195:939 196:680 197:1060 198:2663 199:2461 200:4478 201:3582 202:1105 203:824 204:2189 205:1796 206:1496 207:1712 208:1689 209:1971 210:443 211:513 212:1075 213:855 214:980 215:43 216:2464 217:556 218:648 219:29 220:82 221:536 222:37 223:1668 End of report