IPv4 R&E Routing Table Report 20:15 GMT Fri 02 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: 289832 Prefixes after maximum aggregation (per Origin AS): 119617 Deaggregation factor: 2.42 Unique aggregates announced (without unneeded subnets): 150321 Number of IPv4 prefixes with a valid ROA: 147700 Number of IPv4 prefixes with an invalid ROA: 200 Number of IPv4 prefixes with no ROA: 141932 Total ASes present in the Internet Routing Table: 20706 Prefixes per ASN: 14.00 Origin-only ASes present in the Internet Routing Table: 17846 Origin ASes announcing only one prefix: 8045 Transit ASes present in the Internet Routing Table: 2860 Transit-only ASes present in the Internet Routing Table: 739 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: 261 Number of instances of unregistered ASNs: 290 Number of 32-bit ASNs allocated by the RIRs: 48308 Number of 32-bit ASNs visible in the Routing Table: 8388 Prefixes from 32-bit ASNs in the Routing Table: 34197 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: 150 Number of addresses announced to Internet: 1620135877 Equivalent to 96 /8s, 145 /16s and 79 /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: 94211 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 42492 Total APNIC prefixes after maximum aggregation: 8803 APNIC Deaggregation factor: 4.83 Prefixes being announced from the APNIC address blocks: 39089 Unique aggregates announced from the APNIC address blocks: 8834 APNIC Region origin ASes present in the Internet Routing Table: 1289 APNIC Prefixes per ASN: 30.33 APNIC Region origin ASes announcing only one prefix: 537 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: 631 Number of APNIC addresses announced to Internet: 168961900 Equivalent to 10 /8s, 18 /16s and 39 /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: 126590 Total ARIN prefixes after maximum aggregation: 65187 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 124469 Unique aggregates announced from the ARIN address blocks: 71136 ARIN Region origin ASes present in the Internet Routing Table: 9207 ARIN Prefixes per ASN: 13.52 ARIN Region origin ASes announcing only one prefix: 3826 ARIN Region transit ASes present in the Internet Routing Table: 863 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: 2193 Number of ARIN addresses announced to Internet: 1012647721 Equivalent to 60 /8s, 91 /16s and 199 /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: 51947 Total RIPE prefixes after maximum aggregation: 26132 RIPE Deaggregation factor: 1.99 Prefixes being announced from the RIPE address blocks: 54443 Unique aggregates announced from the RIPE address blocks: 37547 RIPE Region origin ASes present in the Internet Routing Table: 4560 RIPE Prefixes per ASN: 11.94 RIPE Region origin ASes announcing only one prefix: 1939 RIPE Region transit ASes present in the Internet Routing Table: 701 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: 285198544 Equivalent to 16 /8s, 255 /16s and 200 /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: 57747 Total LACNIC prefixes after maximum aggregation: 16692 LACNIC Deaggregation factor: 3.46 Prefixes being announced from the LACNIC address blocks: 55576 Unique aggregates announced from the LACNIC address blocks: 24716 LACNIC Region origin ASes present in the Internet Routing Table: 4458 LACNIC Prefixes per ASN: 12.47 LACNIC Region origin ASes announcing only one prefix: 1608 LACNIC Region transit ASes present in the Internet Routing Table: 860 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: 3448 Number of LACNIC addresses announced to Internet: 107950944 Equivalent to 6 /8s, 111 /16s and 51 /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: 10795 Total AfriNIC prefixes after maximum aggregation: 2598 AfriNIC Deaggregation factor: 4.16 Prefixes being announced from the AfriNIC address blocks: 16105 Unique aggregates announced from the AfriNIC address blocks: 7944 AfriNIC Region origin ASes present in the Internet Routing Table: 338 AfriNIC Prefixes per ASN: 47.65 AfriNIC Region origin ASes announcing only one prefix: 135 AfriNIC Region transit ASes present in the Internet Routing Table: 90 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: 195 Number of AfriNIC addresses announced to Internet: 45222912 Equivalent to 2 /8s, 178 /16s and 12 /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 2230 140 506 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 14052 38463 5433 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 1972 4172 531 CELLCO-PART, US 11776 1908 259 213 ATLANTICBB-JOHNSTOWN, US 367 1805 1883 821 DNIC-ASBLK-00306-00371, US 209 1642 4884 264 CENTURYLINK-US-LEGACY-QWEST, US 19901 1478 717 703 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 704 49 619 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 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 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 933 389 16 LINKdotNET-AS, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 556 82 3 KENET-AS, KE 36903 506 235 346 MT-MPLS, MA 36935 504 133 134 Vodafone-, EG 36992 444 938 265 ETISALAT-MISR, EG 29571 426 94 22 ORANGE-COTE-IVOIRE, CI 2018 356 318 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 14052 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 3143 54729 2394 DNIC-AS-00749, US 36352 2417 200 1145 AS-COLOCROSSING, US 17561 2230 140 506 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 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 17561 2230 1724 LCS-AS-AP LARUS Limited, HK 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 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 /16:7485 /17:3495 /18:4161 /19:7642 /20:13239 /21:16300 /22:28722 /23:29840 /24:176583 /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 2479 14052 AMAZON-02, US 11830 1696 1992 Instituto Costarricense de Electricidad y Telecom., CR 19901 1055 1478 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 2:471 3:974 4:5 5:1175 6:174 7:5 8:636 9:5 11:172 12:889 13:556 14:177 15:360 16:250 17:3 18:906 20:201 21:4 22:188 23:2839 24:599 27:55 29:19 31:504 32:13 34:6 35:182 36:3343 37:606 38:2456 39:806 40:266 41:1089 42:29 43:218 44:28 45:4509 46:957 47:172 49:18 50:497 51:523 52:1076 54:222 55:1122 56:11 57:34 58:44 59:26 60:74 61:58 62:603 63:726 64:2130 65:1031 66:2365 67:1133 68:505 69:1209 70:440 71:155 72:709 74:994 75:301 76:236 77:418 78:558 79:258 80:345 81:418 82:847 83:206 84:343 85:632 86:238 87:199 88:282 89:649 90:105 91:940 92:664 93:951 94:981 95:1341 96:290 97:51 98:390 99:277 100:21 101:23 102:581 103:1269 104:1748 105:198 106:3 107:1686 108:525 109:378 110:93 111:2736 112:1223 113:36 114:37 115:56 116:55 117:1484 118:103 119:79 120:1768 121:38 122:67 123:112 124:69 125:50 128:572 129:386 130:709 131:1110 132:551 133:221 134:517 135:136 136:678 137:591 138:995 139:448 140:764 141:376 142:1426 143:871 144:393 145:191 146:687 147:475 148:1020 149:728 150:282 151:863 152:820 153:277 154:2275 155:1071 156:2060 157:486 158:630 159:838 160:657 161:689 162:977 163:439 164:742 165:652 166:580 167:700 168:1491 169:171 170:1932 171:101 172:1526 173:800 174:278 175:98 176:646 177:972 178:622 179:896 180:53 181:2529 182:31 183:1558 184:450 185:3525 186:3430 187:1678 188:1053 189:1910 190:6398 191:573 192:5087 193:1731 194:1130 195:1004 196:720 197:1044 198:2707 199:2469 200:4622 201:3746 202:1078 203:806 204:2214 205:1802 206:1556 207:1732 208:1717 209:1959 210:379 211:504 212:1112 213:858 214:976 215:43 216:2530 217:559 218:642 219:30 220:91 221:528 222:29 223:1635 End of report