IPv4 R&E Routing Table Report 20:15 GMT Mon 19 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: 288352 Prefixes after maximum aggregation (per Origin AS): 118834 Deaggregation factor: 2.43 Unique aggregates announced (without unneeded subnets): 148630 Number of IPv4 prefixes with a valid ROA: 146663 Number of IPv4 prefixes with an invalid ROA: 204 Number of IPv4 prefixes with no ROA: 141485 Total ASes present in the Internet Routing Table: 20515 Prefixes per ASN: 14.06 Origin-only ASes present in the Internet Routing Table: 17695 Origin ASes announcing only one prefix: 7969 Transit ASes present in the Internet Routing Table: 2820 Transit-only ASes present in the Internet Routing Table: 722 Paths with bogon ASNs present in the IPv4 Routing Table: 7 Average AS path length visible in the Internet Routing Table: 5.9 Max AS path length visible: 38 Max AS path prepend of ASN ( 38764) 33 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: 48432 Number of 32-bit ASNs visible in the Routing Table: 8302 Prefixes from 32-bit ASNs in the Routing Table: 34072 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: 106 Number of addresses announced to Internet: 1613107909 Equivalent to 96 /8s, 38 /16s and 18 /24s Percentage of available address space announced: 43.6 Percentage of allocated address space announced: 43.6 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: 93636 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 42712 Total APNIC prefixes after maximum aggregation: 8888 APNIC Deaggregation factor: 4.81 Prefixes being announced from the APNIC address blocks: 39678 Unique aggregates announced from the APNIC address blocks: 9043 APNIC Region origin ASes present in the Internet Routing Table: 1333 APNIC Prefixes per ASN: 29.77 APNIC Region origin ASes announcing only one prefix: 567 APNIC Region transit ASes present in the Internet Routing Table: 233 Average APNIC Region AS path length visible: 7.6 Max APNIC Region AS path length visible: 38 Number of APNIC region 32-bit ASNs visible in the Routing Table: 654 Number of APNIC addresses announced to Internet: 170969708 Equivalent to 10 /8s, 48 /16s and 202 /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: 126091 Total ARIN prefixes after maximum aggregation: 64842 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 123775 Unique aggregates announced from the ARIN address blocks: 70472 ARIN Region origin ASes present in the Internet Routing Table: 9126 ARIN Prefixes per ASN: 13.56 ARIN Region origin ASes announcing only one prefix: 3789 ARIN Region transit ASes present in the Internet Routing Table: 854 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: 2183 Number of ARIN addresses announced to Internet: 1008740393 Equivalent to 60 /8s, 32 /16s and 40 /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: 51632 Total RIPE prefixes after maximum aggregation: 26007 RIPE Deaggregation factor: 1.99 Prefixes being announced from the RIPE address blocks: 54287 Unique aggregates announced from the RIPE address blocks: 37444 RIPE Region origin ASes present in the Internet Routing Table: 4511 RIPE Prefixes per ASN: 12.03 RIPE Region origin ASes announcing only one prefix: 1921 RIPE Region transit ASes present in the Internet Routing Table: 684 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 25 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1896 Number of RIPE addresses announced to Internet: 280717008 Equivalent to 16 /8s, 187 /16s and 102 /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: 56942 Total LACNIC prefixes after maximum aggregation: 16391 LACNIC Deaggregation factor: 3.47 Prefixes being announced from the LACNIC address blocks: 54812 Unique aggregates announced from the LACNIC address blocks: 24199 LACNIC Region origin ASes present in the Internet Routing Table: 4399 LACNIC Prefixes per ASN: 12.46 LACNIC Region origin ASes announcing only one prefix: 1575 LACNIC Region transit ASes present in the Internet Routing Table: 851 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: 3393 Number of LACNIC addresses announced to Internet: 107776352 Equivalent to 6 /8s, 108 /16s and 137 /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: 10729 Total AfriNIC prefixes after maximum aggregation: 2512 AfriNIC Deaggregation factor: 4.27 Prefixes being announced from the AfriNIC address blocks: 15694 Unique aggregates announced from the AfriNIC address blocks: 7376 AfriNIC Region origin ASes present in the Internet Routing Table: 310 AfriNIC Prefixes per ASN: 50.63 AfriNIC Region origin ASes announcing only one prefix: 117 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: 33 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 176 Number of AfriNIC addresses announced to Internet: 44760064 Equivalent to 2 /8s, 170 /16s and 252 /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 13323 8729 120 CHINAMOBILE-CN China Mobile Communication 56046 3354 832 195 CMNET-JIANGSU-AP China Mobile communicati 17561 1875 118 437 LCS-AS-AP LARUS Limited, HK 56041 1762 714 79 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1710 192 50 CMNET-HUNAN-AP China Mobile communication 24444 1054 500 78 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 56045 908 481 55 CMNET-JIANGXI-AP China Mobile communicati 24547 891 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24445 759 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 654 1159 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 14012 38704 5432 AMAZON-02, US 22773 4664 3092 362 ASN-CXA-ALL-CCI-22773-RDC, US 749 3145 54729 2396 DNIC-AS-00749, US 36352 2419 200 1147 AS-COLOCROSSING, US 6167 1974 4173 531 CELLCO-PART, US 11776 1904 259 213 ATLANTICBB-JOHNSTOWN, US 367 1797 1823 818 DNIC-ASBLK-00306-00371, US 209 1638 4882 263 CENTURYLINK-US-LEGACY-QWEST, US 19901 1477 724 699 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 1247 96 1015 AKAMAI-ASN1, NL 25019 1143 1335 138 SAUDINETSTC-AS, SA 34984 985 151 740 TELLCOM-AS, TR 8452 907 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 546 53 25 Jordan Data Communications, JO 5511 531 98 450 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 7324 1932 784 UNINET, MX 11830 1991 369 65 Instituto Costarricense de Electricidad y 10620 1576 221 1167 Telmex Colombia S.A., CO 11664 1366 278 31 Techtel LMDS Comunicaciones Interactivas 3816 1339 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1258 371 22 Telefonica del Peru S.A.A., PE 26615 1013 2486 56 TIM SA, BR 18881 905 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 1439 463 90 RAYA-AS, EG 37069 1079 1084 13 MOBINIL, EG 24863 946 389 16 LINKdotNET-AS, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 569 82 3 KENET-AS, KE 36903 503 233 345 MT-MPLS, MA 36935 493 132 140 Vodafone-, EG 29571 422 78 20 ORANGE-COTE-IVOIRE, CI 36992 384 870 244 ETISALAT-MISR, EG 2018 372 318 68 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 14012 38704 5432 AMAZON-02, US 9808 13323 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 7324 1932 784 UNINET, MX 39891 4969 306 72 ALJAWWALSTC-AS, SA 22773 4664 3092 362 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3354 832 195 CMNET-JIANGSU-AP China Mobile communicati 749 3145 54729 2396 DNIC-AS-00749, US 36352 2419 200 1147 AS-COLOCROSSING, US 11830 1991 369 65 Instituto Costarricense de Electricidad y 6167 1974 4173 531 CELLCO-PART, 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 13323 13203 CHINAMOBILE-CN China Mobile Communications Grou 8151 7324 6540 UNINET, MX 39891 4969 4897 ALJAWWALSTC-AS, SA 22773 4664 4302 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3354 3159 CMNET-JIANGSU-AP China Mobile communications co 11830 1991 1926 Instituto Costarricense de Electricidad y Telec 11776 1904 1691 ATLANTICBB-JOHNSTOWN, US 56041 1762 1683 CMNET-ZHEJIANG-AP China Mobile communications c 56047 1710 1660 CMNET-HUNAN-AP China Mobile communications corp 6167 1974 1443 CELLCO-PART, US 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 395476 UNALLOCATED 12.36.194.0/24 7018 ATT-INTERNET4, US 395476 UNALLOCATED 12.36.195.0/24 3356 LEVEL3, 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 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 /10:31 /11:51 /12:159 /13:213 /14:576 /15:1065 /16:7501 /17:3485 /18:4172 /19:7677 /20:13186 /21:16218 /22:28635 /23:29519 /24:175605 /25:61 /26:83 /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 4016 7324 UNINET, MX 39891 3655 4969 ALJAWWALSTC-AS, SA 22773 3049 4664 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2479 14012 AMAZON-02, US 11830 1695 1991 Instituto Costarricense de Electricidad y Telecom., CR 11664 1052 1366 Techtel LMDS Comunicaciones Interactivas S.A., AR 19901 1052 1477 BRIGHTSPEED, US 36352 1015 2419 AS-COLOCROSSING, US 10620 958 1576 Telmex Colombia S.A., CO 209 953 1638 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) ---------------------------------------------- 1:49 2:460 3:973 4:5 5:1179 6:172 7:5 8:634 9:5 11:172 12:879 13:557 14:178 15:360 16:154 17:3 18:910 20:204 21:4 22:188 23:2854 24:661 27:46 29:19 31:510 32:13 34:6 35:182 36:3313 37:632 38:2335 39:828 40:251 41:1133 42:23 43:204 44:29 45:4375 46:914 47:166 48:20 49:18 50:482 51:521 52:1078 54:228 55:1048 56:11 57:31 58:45 59:43 60:74 61:59 62:600 63:721 64:2216 65:1000 66:2349 67:1131 68:504 69:1232 70:439 71:157 72:702 74:982 75:293 76:238 77:400 78:573 79:247 80:352 81:394 82:842 83:209 84:345 85:638 86:233 87:207 88:279 89:631 90:100 91:932 92:676 93:952 94:985 95:1310 96:299 97:46 98:393 99:270 100:22 101:25 102:585 103:1281 104:1708 105:154 106:4 107:1678 108:520 109:369 110:94 111:2755 112:1265 113:34 114:34 115:55 116:56 117:1503 118:72 119:87 120:1929 121:37 122:77 123:130 124:69 125:48 128:558 129:375 130:699 131:1130 132:561 133:220 134:499 135:135 136:735 137:608 138:1002 139:444 140:759 141:378 142:1458 143:854 144:501 145:192 146:683 147:467 148:1028 149:718 150:224 151:871 152:841 153:282 154:2228 155:1054 156:1875 157:493 158:647 159:839 160:641 161:722 162:977 163:417 164:742 165:646 166:571 167:711 168:1465 169:163 170:1843 171:101 172:1538 173:780 174:279 175:99 176:644 177:858 178:630 179:896 180:45 181:2488 182:24 183:1612 184:445 185:3399 186:3425 187:1703 188:1047 189:1942 190:6325 191:570 192:5058 193:1696 194:1113 195:972 196:706 197:1067 198:2677 199:2460 200:4619 201:3670 202:1136 203:819 204:2187 205:1779 206:1488 207:1715 208:1710 209:1926 210:442 211:512 212:1117 213:871 214:975 215:43 216:2490 217:555 218:648 219:29 220:82 221:534 222:29 223:1663 End of report