IPv4 R&E Routing Table Report 20:15 GMT Sat 10 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: 289088 Prefixes after maximum aggregation (per Origin AS): 119337 Deaggregation factor: 2.42 Unique aggregates announced (without unneeded subnets): 149654 Number of IPv4 prefixes with a valid ROA: 146915 Number of IPv4 prefixes with an invalid ROA: 204 Number of IPv4 prefixes with no ROA: 141969 Total ASes present in the Internet Routing Table: 20587 Prefixes per ASN: 14.04 Origin-only ASes present in the Internet Routing Table: 17752 Origin ASes announcing only one prefix: 8001 Transit ASes present in the Internet Routing Table: 2835 Transit-only ASes present in the Internet Routing Table: 736 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: 279 Number of instances of unregistered ASNs: 308 Number of 32-bit ASNs allocated by the RIRs: 48334 Number of 32-bit ASNs visible in the Routing Table: 8301 Prefixes from 32-bit ASNs in the Routing Table: 33816 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: 130 Number of addresses announced to Internet: 1622576581 Equivalent to 96 /8s, 182 /16s and 141 /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: 93520 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 42926 Total APNIC prefixes after maximum aggregation: 8965 APNIC Deaggregation factor: 4.79 Prefixes being announced from the APNIC address blocks: 39576 Unique aggregates announced from the APNIC address blocks: 9175 APNIC Region origin ASes present in the Internet Routing Table: 1337 APNIC Prefixes per ASN: 29.60 APNIC Region origin ASes announcing only one prefix: 558 APNIC Region transit ASes present in the Internet Routing Table: 226 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: 656 Number of APNIC addresses announced to Internet: 170593388 Equivalent to 10 /8s, 43 /16s and 12 /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: 126792 Total ARIN prefixes after maximum aggregation: 65308 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 124522 Unique aggregates announced from the ARIN address blocks: 71176 ARIN Region origin ASes present in the Internet Routing Table: 9214 ARIN Prefixes per ASN: 13.51 ARIN Region origin ASes announcing only one prefix: 3832 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: 2194 Number of ARIN addresses announced to Internet: 1013209129 Equivalent to 60 /8s, 100 /16s and 88 /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: 51636 Total RIPE prefixes after maximum aggregation: 25983 RIPE Deaggregation factor: 1.99 Prefixes being announced from the RIPE address blocks: 54291 Unique aggregates announced from the RIPE address blocks: 37208 RIPE Region origin ASes present in the Internet Routing Table: 4497 RIPE Prefixes per ASN: 12.07 RIPE Region origin ASes announcing only one prefix: 1919 RIPE Region transit ASes present in the Internet Routing Table: 678 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: 1902 Number of RIPE addresses announced to Internet: 286098640 Equivalent to 17 /8s, 13 /16s and 132 /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: 57015 Total LACNIC prefixes after maximum aggregation: 16371 LACNIC Deaggregation factor: 3.48 Prefixes being announced from the LACNIC address blocks: 54861 Unique aggregates announced from the LACNIC address blocks: 24294 LACNIC Region origin ASes present in the Internet Routing Table: 4383 LACNIC Prefixes per ASN: 12.52 LACNIC Region origin ASes announcing only one prefix: 1574 LACNIC Region transit ASes present in the Internet Routing Table: 852 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: 3381 Number of LACNIC addresses announced to Internet: 107794784 Equivalent to 6 /8s, 108 /16s and 209 /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: 10440 Total AfriNIC prefixes after maximum aggregation: 2489 AfriNIC Deaggregation factor: 4.19 Prefixes being announced from the AfriNIC address blocks: 15708 Unique aggregates announced from the AfriNIC address blocks: 7681 AfriNIC Region origin ASes present in the Internet Routing Table: 300 AfriNIC Prefixes per ASN: 52.36 AfriNIC Region origin ASes announcing only one prefix: 118 AfriNIC Region transit ASes present in the Internet Routing Table: 86 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: 168 Number of AfriNIC addresses announced to Internet: 44730112 Equivalent to 2 /8s, 170 /16s and 135 /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 13226 8729 120 CHINAMOBILE-CN China Mobile Communication 56046 3345 832 195 CMNET-JIANGSU-AP China Mobile communicati 17561 2232 140 503 LCS-AS-AP LARUS Limited, HK 56041 1762 714 79 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1707 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 653 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 14155 38628 5438 AMAZON-02, US 22773 4773 3099 364 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 1907 259 213 ATLANTICBB-JOHNSTOWN, US 367 1811 1885 827 DNIC-ASBLK-00306-00371, US 209 1642 4884 264 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 1277 98 1033 AKAMAI-ASN1, NL 25019 1146 1335 138 SAUDINETSTC-AS, SA 34984 995 161 746 TELLCOM-AS, TR 3215 898 4820 298 France Telecom - Orange, FR 8452 842 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 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 7349 1933 777 UNINET, MX 11830 1991 369 65 Instituto Costarricense de Electricidad y 10620 1591 224 1173 Telmex Colombia S.A., CO 11664 1363 278 31 Techtel LMDS Comunicaciones Interactivas 3816 1339 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1257 371 22 Telefonica del Peru S.A.A., PE 26615 1010 2486 56 TIM SA, BR 18881 903 1127 31 TELEFONICA BRASIL S.A, BR 27651 849 140 44 ENTEL CHILE S.A., CL 52468 692 43 206 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 1447 463 90 RAYA-AS, EG 37069 1075 1084 13 MOBINIL, EG 24863 934 389 16 LINKdotNET-AS, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 562 82 3 KENET-AS, KE 36903 506 235 346 MT-MPLS, MA 36935 503 131 133 Vodafone-, EG 29571 424 94 22 ORANGE-COTE-IVOIRE, CI 36992 378 876 245 ETISALAT-MISR, EG 2018 374 318 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 14155 38628 5438 AMAZON-02, US 9808 13226 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 7349 1933 777 UNINET, MX 39891 4969 306 72 ALJAWWALSTC-AS, SA 22773 4773 3099 364 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3345 832 195 CMNET-JIANGSU-AP China Mobile communicati 749 3143 54729 2394 DNIC-AS-00749, US 36352 2417 200 1145 AS-COLOCROSSING, US 17561 2232 140 503 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 13226 13106 CHINAMOBILE-CN China Mobile Communications Grou 8151 7349 6572 UNINET, MX 39891 4969 4897 ALJAWWALSTC-AS, SA 22773 4773 4409 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3345 3150 CMNET-JIANGSU-AP China Mobile communications co 11830 1991 1926 Instituto Costarricense de Electricidad y Telec 17561 2232 1729 LCS-AS-AP LARUS Limited, HK 11776 1907 1694 ATLANTICBB-JOHNSTOWN, US 56041 1762 1683 CMNET-ZHEJIANG-AP China Mobile communications c 56047 1707 1657 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, 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 /10:32 /11:51 /12:160 /13:217 /14:583 /15:1069 /16:7506 /17:3498 /18:4155 /19:7657 /20:13185 /21:16213 /22:28681 /23:29568 /24:176254 /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 4037 7349 UNINET, MX 39891 3655 4969 ALJAWWALSTC-AS, SA 22773 3047 4773 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2500 14155 AMAZON-02, US 11830 1695 1991 Instituto Costarricense de Electricidad y Telecom., CR 19901 1052 1477 BRIGHTSPEED, US 11664 1051 1363 Techtel LMDS Comunicaciones Interactivas S.A., AR 36352 1015 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) ---------------------------------------------- 1:46 2:482 3:984 4:5 5:1189 6:174 7:5 8:640 9:5 11:172 12:891 13:557 14:176 15:360 16:250 17:3 18:910 20:203 21:4 22:188 23:2882 24:669 27:55 29:19 31:502 32:13 34:7 35:182 36:3309 37:605 38:2417 39:820 40:270 41:1058 42:24 43:218 44:30 45:4453 46:932 47:172 49:20 50:480 51:524 52:1081 54:226 55:1113 56:11 57:33 58:45 59:42 60:74 61:62 62:592 63:719 64:2144 65:1031 66:2360 67:1129 68:504 69:1204 70:436 71:155 72:709 74:992 75:296 76:235 77:430 78:568 79:241 80:345 81:376 82:843 83:208 84:346 85:633 86:237 87:202 88:281 89:634 90:100 91:934 92:676 93:956 94:957 95:1320 96:290 97:51 98:391 99:277 100:21 101:23 102:504 103:1302 104:1734 105:197 106:3 107:1683 108:526 109:381 110:94 111:2740 112:1268 113:37 114:34 115:56 116:54 117:1503 118:133 119:89 120:1779 121:40 122:76 123:129 124:67 125:49 128:567 129:373 130:702 131:1096 132:561 133:220 134:515 135:135 136:718 137:607 138:1002 139:447 140:761 141:383 142:1440 143:868 144:400 145:193 146:690 147:483 148:1005 149:729 150:283 151:864 152:818 153:282 154:2267 155:1111 156:2054 157:495 158:648 159:843 160:638 161:688 162:974 163:416 164:734 165:626 166:578 167:704 168:1500 169:169 170:1904 171:101 172:1551 173:793 174:275 175:97 176:659 177:885 178:627 179:895 180:53 181:2500 182:24 183:1575 184:452 185:3392 186:3433 187:1691 188:1039 189:1935 190:6324 191:563 192:5088 193:1731 194:1099 195:995 196:688 197:1023 198:2706 199:2468 200:4627 201:3728 202:1123 203:837 204:2206 205:1783 206:1517 207:1732 208:1695 209:1937 210:443 211:515 212:1102 213:863 214:977 215:43 216:2534 217:554 218:644 219:29 220:83 221:529 222:29 223:1655 End of report