IPv4 R&E Routing Table Report 20:15 GMT Tue 06 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: 289328 Prefixes after maximum aggregation (per Origin AS): 119603 Deaggregation factor: 2.42 Unique aggregates announced (without unneeded subnets): 150153 Number of IPv4 prefixes with a valid ROA: 147522 Number of IPv4 prefixes with an invalid ROA: 202 Number of IPv4 prefixes with no ROA: 141604 Total ASes present in the Internet Routing Table: 20667 Prefixes per ASN: 14.00 Origin-only ASes present in the Internet Routing Table: 17804 Origin ASes announcing only one prefix: 8018 Transit ASes present in the Internet Routing Table: 2863 Transit-only ASes present in the Internet Routing Table: 749 Paths with bogon ASNs present in the IPv4 Routing Table: 10 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: 260 Number of instances of unregistered ASNs: 289 Number of 32-bit ASNs allocated by the RIRs: 48321 Number of 32-bit ASNs visible in the Routing Table: 8352 Prefixes from 32-bit ASNs in the Routing Table: 33971 Number of bogon 32-bit ASNs visible in the Routing Table: 68 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 121 Number of addresses announced to Internet: 1619902405 Equivalent to 96 /8s, 141 /16s and 191 /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: 93912 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 42749 Total APNIC prefixes after maximum aggregation: 8848 APNIC Deaggregation factor: 4.83 Prefixes being announced from the APNIC address blocks: 39349 Unique aggregates announced from the APNIC address blocks: 8933 APNIC Region origin ASes present in the Internet Routing Table: 1315 APNIC Prefixes per ASN: 29.92 APNIC Region origin ASes announcing only one prefix: 549 APNIC Region transit ASes present in the Internet Routing Table: 220 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: 650 Number of APNIC addresses announced to Internet: 169118828 Equivalent to 10 /8s, 20 /16s and 140 /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: 126774 Total ARIN prefixes after maximum aggregation: 65235 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 124623 Unique aggregates announced from the ARIN address blocks: 71189 ARIN Region origin ASes present in the Internet Routing Table: 9208 ARIN Prefixes per ASN: 13.53 ARIN Region origin ASes announcing only one prefix: 3828 ARIN Region transit ASes present in the Internet Routing Table: 856 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: 2191 Number of ARIN addresses announced to Internet: 1012916009 Equivalent to 60 /8s, 95 /16s and 223 /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: 52119 Total RIPE prefixes after maximum aggregation: 26266 RIPE Deaggregation factor: 1.98 Prefixes being announced from the RIPE address blocks: 54680 Unique aggregates announced from the RIPE address blocks: 37763 RIPE Region origin ASes present in the Internet Routing Table: 4555 RIPE Prefixes per ASN: 12.00 RIPE Region origin ASes announcing only one prefix: 1929 RIPE Region transit ASes present in the Internet Routing Table: 702 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 24 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1916 Number of RIPE addresses announced to Internet: 285036496 Equivalent to 16 /8s, 253 /16s and 79 /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: 56898 Total LACNIC prefixes after maximum aggregation: 16542 LACNIC Deaggregation factor: 3.44 Prefixes being announced from the LACNIC address blocks: 54720 Unique aggregates announced from the LACNIC address blocks: 24407 LACNIC Region origin ASes present in the Internet Routing Table: 4407 LACNIC Prefixes per ASN: 12.42 LACNIC Region origin ASes announcing only one prefix: 1585 LACNIC Region transit ASes present in the Internet Routing Table: 858 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: 3409 Number of LACNIC addresses announced to Internet: 107681120 Equivalent to 6 /8s, 107 /16s and 21 /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: 10528 Total AfriNIC prefixes after maximum aggregation: 2506 AfriNIC Deaggregation factor: 4.20 Prefixes being announced from the AfriNIC address blocks: 15835 Unique aggregates announced from the AfriNIC address blocks: 7746 AfriNIC Region origin ASes present in the Internet Routing Table: 317 AfriNIC Prefixes per ASN: 49.95 AfriNIC Region origin ASes announcing only one prefix: 127 AfriNIC Region transit ASes present in the Internet Routing Table: 92 Average AfriNIC Region AS path length visible: 6.5 Max AfriNIC Region AS path length visible: 33 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 186 Number of AfriNIC addresses announced to Internet: 45001472 Equivalent to 2 /8s, 174 /16s and 171 /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 13217 8729 120 CHINAMOBILE-CN China Mobile Communication 56046 3337 832 195 CMNET-JIANGSU-AP China Mobile communicati 17561 2233 140 503 LCS-AS-AP LARUS Limited, HK 56041 1756 714 79 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1733 192 50 CMNET-HUNAN-AP China Mobile communication 24444 1052 500 78 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 56045 907 481 55 CMNET-JIANGXI-AP China Mobile communicati 24547 890 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24445 748 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 651 1159 153 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 14078 38463 5427 AMAZON-02, US 22773 4746 3097 373 ASN-CXA-ALL-CCI-22773-RDC, US 749 3143 54729 2394 DNIC-AS-00749, US 36352 2417 200 1145 AS-COLOCROSSING, US 6167 1974 4173 531 CELLCO-PART, US 11776 1908 259 213 ATLANTICBB-JOHNSTOWN, US 367 1814 1886 827 DNIC-ASBLK-00306-00371, US 209 1642 4884 264 CENTURYLINK-US-LEGACY-QWEST, US 19901 1472 716 707 BRIGHTSPEED, US 20057 1438 1017 111 ATT-MOBILITY-LLC-AS20057, US 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 1278 98 1034 AKAMAI-ASN1, NL 25019 1146 1335 138 SAUDINETSTC-AS, SA 34984 994 161 745 TELLCOM-AS, TR 3215 898 4820 298 France Telecom - Orange, FR 8452 855 1841 16 TE-AS TE-AS, EG 212238 705 49 620 CDNEXT, GB 51167 565 113 248 CONTABO, DE 8376 553 53 25 Jordan Data Communications, JO 5511 530 98 449 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 6787 1874 789 UNINET, MX 11830 1992 369 65 Instituto Costarricense de Electricidad y 10620 1591 224 1173 Telmex Colombia S.A., CO 11664 1371 278 31 Techtel LMDS Comunicaciones Interactivas 3816 1339 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1260 371 22 Telefonica del Peru S.A.A., PE 26615 1011 2486 56 TIM SA, BR 18881 903 1127 31 TELEFONICA BRASIL S.A, BR 27651 849 140 44 ENTEL CHILE S.A., CL 52468 691 43 204 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 1443 463 90 RAYA-AS, EG 37069 1099 1084 13 MOBINIL, EG 24863 925 389 16 LINKdotNET-AS, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 551 82 3 KENET-AS, KE 36903 506 235 346 MT-MPLS, MA 36935 503 131 133 Vodafone-, EG 29571 426 94 22 ORANGE-COTE-IVOIRE, CI 36992 396 895 250 ETISALAT-MISR, EG 2018 357 318 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 14078 38463 5427 AMAZON-02, US 9808 13217 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 6787 1874 789 UNINET, MX 39891 4969 306 72 ALJAWWALSTC-AS, SA 22773 4746 3097 373 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3337 832 195 CMNET-JIANGSU-AP China Mobile communicati 749 3143 54729 2394 DNIC-AS-00749, US 36352 2417 200 1145 AS-COLOCROSSING, US 17561 2233 140 503 LCS-AS-AP LARUS Limited, HK 11830 1992 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 13217 13097 CHINAMOBILE-CN China Mobile Communications Grou 8151 6787 5998 UNINET, MX 39891 4969 4897 ALJAWWALSTC-AS, SA 22773 4746 4373 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3337 3142 CMNET-JIANGSU-AP China Mobile communications co 11830 1992 1927 Instituto Costarricense de Electricidad y Telec 17561 2233 1730 LCS-AS-AP LARUS Limited, HK 11776 1908 1695 ATLANTICBB-JOHNSTOWN, US 56047 1733 1683 CMNET-HUNAN-AP China Mobile communications corp 56041 1756 1677 CMNET-ZHEJIANG-AP China Mobile communications c 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, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US 21861 UNALLOCATED 12.37.59.0/24 7018 ATT-INTERNET4, US 33684 UNALLOCATED 12.37.144.0/24 7018 ATT-INTERNET4, US 31781 UNALLOCATED 12.71.107.0/24 7018 ATT-INTERNET4, US 21861 UNALLOCATED 12.106.212.0/24 7018 ATT-INTERNET4, US 26295 UNALLOCATED 12.110.210.0/23 7018 ATT-INTERNET4, US 12114 UNALLOCATED 12.129.100.0/24 7018 ATT-INTERNET4, US 22538 UNALLOCATED 12.131.3.0/24 7018 ATT-INTERNET4, US 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, 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, US 23.137.48.0/24 Transit: 3257 GTT-BACKBONE GTT, US 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.155.185.0/24 Origin: 401541 OSIE, US 23.155.185.0/24 Transit: 397423 TIER-NET, US 23.157.217.0/24 Origin: 401541 OSIE, US 23.157.217.0/24 Transit: 397423 TIER-NET, 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 /10:33 /11:51 /12:156 /13:215 /14:583 /15:1069 /16:7487 /17:3500 /18:4153 /19:7596 /20:13197 /21:16165 /22:28603 /23:29648 /24:176613 /25:60 /26:82 /27:52 /28:18 /29:7 /30:9 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3750 6787 UNINET, MX 39891 3655 4969 ALJAWWALSTC-AS, SA 22773 3054 4746 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2490 14078 AMAZON-02, US 11830 1696 1992 Instituto Costarricense de Electricidad y Telecom., CR 19901 1050 1472 BRIGHTSPEED, US 11664 1047 1371 Techtel LMDS Comunicaciones Interactivas S.A., AR 36352 1014 2417 AS-COLOCROSSING, US 10620 959 1591 Telmex Colombia S.A., CO 209 955 1642 CENTURYLINK-US-LEGACY-QWEST, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:29 2:466 3:974 4:5 5:1180 6:174 7:5 8:634 9:5 11:172 12:888 13:560 14:178 15:361 16:250 17:3 18:907 20:202 21:4 22:188 23:2874 24:669 27:55 29:19 31:522 32:13 34:6 35:182 36:3342 37:635 38:2437 39:811 40:270 41:1069 42:24 43:214 44:29 45:4501 46:950 47:172 49:20 50:480 51:524 52:1078 54:222 55:1111 56:11 57:32 58:44 59:42 60:74 61:58 62:605 63:725 64:2149 65:1033 66:2364 67:1131 68:519 69:1209 70:440 71:155 72:709 74:991 75:301 76:235 77:413 78:560 79:261 80:345 81:411 82:852 83:208 84:343 85:631 86:238 87:201 88:282 89:654 90:105 91:943 92:669 93:951 94:989 95:1357 96:291 97:51 98:389 99:277 100:21 101:24 102:511 103:1318 104:1750 105:197 106:3 107:1689 108:520 109:388 110:93 111:2740 112:1221 113:37 114:34 115:56 116:55 117:1490 118:135 119:86 120:1779 121:39 122:77 123:112 124:70 125:49 128:570 129:399 130:699 131:1098 132:554 133:220 134:517 135:136 136:691 137:590 138:1002 139:448 140:765 141:379 142:1439 143:868 144:396 145:194 146:688 147:472 148:1025 149:725 150:284 151:866 152:820 153:281 154:2281 155:1077 156:2049 157:486 158:637 159:846 160:633 161:689 162:976 163:415 164:743 165:635 166:577 167:701 168:1496 169:167 170:1926 171:101 172:1528 173:792 174:280 175:102 176:652 177:867 178:630 179:898 180:53 181:2521 182:32 183:1558 184:450 185:3524 186:3417 187:1559 188:1062 189:1845 190:6398 191:573 192:5081 193:1740 194:1126 195:996 196:715 197:1025 198:2701 199:2467 200:4663 201:3747 202:1104 203:817 204:2209 205:1806 206:1555 207:1733 208:1719 209:1958 210:415 211:505 212:1139 213:864 214:974 215:43 216:2538 217:558 218:642 219:30 220:91 221:528 222:29 223:1637 End of report