IPv4 R&E Routing Table Report 20:15 GMT Thu 01 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: 289625 Prefixes after maximum aggregation (per Origin AS): 119382 Deaggregation factor: 2.43 Unique aggregates announced (without unneeded subnets): 149857 Number of IPv4 prefixes with a valid ROA: 147683 Number of IPv4 prefixes with an invalid ROA: 199 Number of IPv4 prefixes with no ROA: 141743 Total ASes present in the Internet Routing Table: 20628 Prefixes per ASN: 14.04 Origin-only ASes present in the Internet Routing Table: 17790 Origin ASes announcing only one prefix: 7997 Transit ASes present in the Internet Routing Table: 2838 Transit-only ASes present in the Internet Routing Table: 733 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: 258 Number of instances of unregistered ASNs: 287 Number of 32-bit ASNs allocated by the RIRs: 48313 Number of 32-bit ASNs visible in the Routing Table: 8321 Prefixes from 32-bit ASNs in the Routing Table: 34075 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: 128 Number of addresses announced to Internet: 1620141509 Equivalent to 96 /8s, 145 /16s and 101 /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: 94077 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 42697 Total APNIC prefixes after maximum aggregation: 8797 APNIC Deaggregation factor: 4.85 Prefixes being announced from the APNIC address blocks: 39598 Unique aggregates announced from the APNIC address blocks: 8998 APNIC Region origin ASes present in the Internet Routing Table: 1306 APNIC Prefixes per ASN: 30.32 APNIC Region origin ASes announcing only one prefix: 538 APNIC Region transit ASes present in the Internet Routing Table: 221 Average APNIC Region AS path length visible: 7.6 Max APNIC Region AS path length visible: 24 Number of APNIC region 32-bit ASNs visible in the Routing Table: 639 Number of APNIC addresses announced to Internet: 169131116 Equivalent to 10 /8s, 20 /16s and 188 /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: 126513 Total ARIN prefixes after maximum aggregation: 65136 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 124419 Unique aggregates announced from the ARIN address blocks: 71113 ARIN Region origin ASes present in the Internet Routing Table: 9208 ARIN Prefixes per ASN: 13.51 ARIN Region origin ASes announcing only one prefix: 3829 ARIN Region transit ASes present in the Internet Routing Table: 862 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: 2192 Number of ARIN addresses announced to Internet: 1012643113 Equivalent to 60 /8s, 91 /16s and 181 /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: 52074 Total RIPE prefixes after maximum aggregation: 26147 RIPE Deaggregation factor: 1.99 Prefixes being announced from the RIPE address blocks: 54570 Unique aggregates announced from the RIPE address blocks: 37625 RIPE Region origin ASes present in the Internet Routing Table: 4555 RIPE Prefixes per ASN: 11.98 RIPE Region origin ASes announcing only one prefix: 1934 RIPE Region transit ASes present in the Internet Routing Table: 697 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 24 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1921 Number of RIPE addresses announced to Internet: 285271248 Equivalent to 17 /8s, 0 /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: 57341 Total LACNIC prefixes after maximum aggregation: 16533 LACNIC Deaggregation factor: 3.47 Prefixes being announced from the LACNIC address blocks: 55162 Unique aggregates announced from the LACNIC address blocks: 24404 LACNIC Region origin ASes present in the Internet Routing Table: 4378 LACNIC Prefixes per ASN: 12.60 LACNIC Region origin ASes announcing only one prefix: 1566 LACNIC Region transit ASes present in the Internet Routing Table: 842 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: 3376 Number of LACNIC addresses announced to Internet: 107793504 Equivalent to 6 /8s, 108 /16s and 204 /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: 10742 Total AfriNIC prefixes after maximum aggregation: 2564 AfriNIC Deaggregation factor: 4.19 Prefixes being announced from the AfriNIC address blocks: 15748 Unique aggregates announced from the AfriNIC address blocks: 7595 AfriNIC Region origin ASes present in the Internet Routing Table: 333 AfriNIC Prefixes per ASN: 47.29 AfriNIC Region origin ASes announcing only one prefix: 130 AfriNIC Region transit ASes present in the Internet Routing Table: 88 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: 193 Number of AfriNIC addresses announced to Internet: 45150464 Equivalent to 2 /8s, 176 /16s and 241 /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 13204 8729 120 CHINAMOBILE-CN China Mobile Communication 56046 3335 832 195 CMNET-JIANGSU-AP China Mobile communicati 17561 1926 121 420 LCS-AS-AP LARUS Limited, HK 56041 1756 714 79 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1731 192 50 CMNET-HUNAN-AP China Mobile communication 24444 1046 500 78 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 56045 907 481 55 CMNET-JIANGXI-AP China Mobile communicati 24547 888 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24445 739 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 656 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 14035 38463 5433 AMAZON-02, US 22773 4746 3097 373 ASN-CXA-ALL-CCI-22773-RDC, US 749 3144 54729 2395 DNIC-AS-00749, US 36352 2416 200 1144 AS-COLOCROSSING, US 6167 1972 4172 531 CELLCO-PART, US 11776 1908 259 213 ATLANTICBB-JOHNSTOWN, US 367 1804 1883 820 DNIC-ASBLK-00306-00371, US 209 1642 4884 264 CENTURYLINK-US-LEGACY-QWEST, US 19901 1479 717 702 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 1145 1335 138 SAUDINETSTC-AS, SA 34984 994 161 745 TELLCOM-AS, TR 3215 898 4820 298 France Telecom - Orange, FR 8452 853 1841 16 TE-AS TE-AS, EG 212238 700 49 617 CDNEXT, GB 51167 565 113 248 CONTABO, DE 8376 555 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 7339 1935 774 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 1010 2486 56 TIM SA, BR 18881 905 1127 31 TELEFONICA BRASIL S.A, BR 27651 849 140 44 ENTEL CHILE S.A., CL 52468 697 44 199 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 932 389 16 LINKdotNET-AS, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 557 82 3 KENET-AS, KE 36903 506 235 346 MT-MPLS, MA 36935 504 133 134 Vodafone-, EG 36992 448 938 265 ETISALAT-MISR, EG 29571 426 94 22 ORANGE-COTE-IVOIRE, CI 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 14035 38463 5433 AMAZON-02, US 9808 13204 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 7339 1935 774 UNINET, MX 39891 4969 306 72 ALJAWWALSTC-AS, SA 22773 4746 3097 373 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3335 832 195 CMNET-JIANGSU-AP China Mobile communicati 749 3144 54729 2395 DNIC-AS-00749, US 36352 2416 200 1144 AS-COLOCROSSING, US 11830 1992 369 65 Instituto Costarricense de Electricidad y 6167 1972 4172 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 13204 13084 CHINAMOBILE-CN China Mobile Communications Grou 8151 7339 6565 UNINET, MX 39891 4969 4897 ALJAWWALSTC-AS, SA 22773 4746 4373 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3335 3140 CMNET-JIANGSU-AP China Mobile communications co 11830 1992 1927 Instituto Costarricense de Electricidad y Telec 11776 1908 1695 ATLANTICBB-JOHNSTOWN, US 56047 1731 1681 CMNET-HUNAN-AP China Mobile communications corp 56041 1756 1677 CMNET-ZHEJIANG-AP China Mobile communications c 17561 1926 1506 LCS-AS-AP LARUS Limited, HK 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 /16:7483 /17:3497 /18:4169 /19:7649 /20:13252 /21:16296 /22:28684 /23:29757 /24:176473 /25:60 /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 4027 7339 UNINET, MX 39891 3655 4969 ALJAWWALSTC-AS, SA 22773 3054 4746 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2465 14035 AMAZON-02, US 11830 1696 1992 Instituto Costarricense de Electricidad y Telecom., CR 19901 1056 1479 BRIGHTSPEED, US 11664 1047 1371 Techtel LMDS Comunicaciones Interactivas S.A., AR 36352 1014 2416 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 2:471 3:974 4:5 5:1188 6:174 7:5 8:637 9:5 11:172 12:889 13:553 14:177 15:360 16:250 17:3 18:907 20:201 21:4 22:188 23:2866 24:599 27:55 29:19 31:502 32:13 34:7 35:182 36:3342 37:599 38:2458 39:806 40:266 41:1087 42:29 43:224 44:28 45:4356 46:938 47:172 49:20 50:496 51:523 52:1107 54:222 55:1120 56:11 57:34 58:46 59:42 60:74 61:58 62:603 63:726 64:2140 65:1021 66:2363 67:1133 68:504 69:1217 70:439 71:155 72:708 74:994 75:301 76:236 77:411 78:557 79:258 80:345 81:417 82:847 83:211 84:343 85:632 86:238 87:199 88:282 89:651 90:105 91:940 92:675 93:970 94:1001 95:1342 96:294 97:51 98:390 99:277 100:21 101:20 102:551 103:1318 104:1758 105:198 106:3 107:1680 108:526 109:377 110:93 111:2735 112:1246 113:36 114:37 115:56 116:58 117:1484 118:132 119:109 120:1768 121:38 122:74 123:111 124:69 125:49 128:575 129:386 130:706 131:1106 132:558 133:221 134:519 135:136 136:678 137:595 138:998 139:452 140:764 141:384 142:1427 143:856 144:394 145:191 146:687 147:474 148:1063 149:728 150:284 151:862 152:818 153:277 154:2094 155:1073 156:2056 157:491 158:630 159:839 160:645 161:707 162:981 163:374 164:741 165:645 166:580 167:698 168:1484 169:167 170:1915 171:101 172:1526 173:799 174:278 175:105 176:647 177:912 178:618 179:893 180:75 181:2524 182:147 183:1558 184:450 185:3528 186:3425 187:1688 188:1064 189:1892 190:6380 191:555 192:5085 193:1731 194:1130 195:997 196:718 197:1032 198:2708 199:2464 200:4614 201:3685 202:1091 203:819 204:2216 205:1804 206:1556 207:1730 208:1716 209:1959 210:384 211:504 212:1113 213:878 214:978 215:43 216:2562 217:561 218:642 219:30 220:91 221:528 222:29 223:1635 End of report