IPv4 R&E Routing Table Report 20:15 GMT Thu 15 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: 289140 Prefixes after maximum aggregation (per Origin AS): 119128 Deaggregation factor: 2.43 Unique aggregates announced (without unneeded subnets): 149499 Number of IPv4 prefixes with a valid ROA: 147333 Number of IPv4 prefixes with an invalid ROA: 206 Number of IPv4 prefixes with no ROA: 141601 Total ASes present in the Internet Routing Table: 20566 Prefixes per ASN: 14.06 Origin-only ASes present in the Internet Routing Table: 17729 Origin ASes announcing only one prefix: 7970 Transit ASes present in the Internet Routing Table: 2837 Transit-only ASes present in the Internet Routing Table: 730 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: 37 Max AS path prepend of ASN (273113) 30 Prefixes from unregistered ASNs in the Routing Table: 251 Number of instances of unregistered ASNs: 280 Number of 32-bit ASNs allocated by the RIRs: 48386 Number of 32-bit ASNs visible in the Routing Table: 8356 Prefixes from 32-bit ASNs in the Routing Table: 34161 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: 132 Number of addresses announced to Internet: 1613248965 Equivalent to 96 /8s, 40 /16s and 57 /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: 93584 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 43081 Total APNIC prefixes after maximum aggregation: 8969 APNIC Deaggregation factor: 4.80 Prefixes being announced from the APNIC address blocks: 39705 Unique aggregates announced from the APNIC address blocks: 9067 APNIC Region origin ASes present in the Internet Routing Table: 1339 APNIC Prefixes per ASN: 29.65 APNIC Region origin ASes announcing only one prefix: 567 APNIC Region transit ASes present in the Internet Routing Table: 231 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: 170992236 Equivalent to 10 /8s, 49 /16s and 34 /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: 126352 Total ARIN prefixes after maximum aggregation: 64909 ARIN Deaggregation factor: 1.95 Prefixes being announced from the ARIN address blocks: 124025 Unique aggregates announced from the ARIN address blocks: 70670 ARIN Region origin ASes present in the Internet Routing Table: 9136 ARIN Prefixes per ASN: 13.58 ARIN Region origin ASes announcing only one prefix: 3781 ARIN Region transit ASes present in the Internet Routing Table: 859 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: 1008606761 Equivalent to 60 /8s, 30 /16s and 30 /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: 52040 Total RIPE prefixes after maximum aggregation: 26212 RIPE Deaggregation factor: 1.99 Prefixes being announced from the RIPE address blocks: 54579 Unique aggregates announced from the RIPE address blocks: 37804 RIPE Region origin ASes present in the Internet Routing Table: 4524 RIPE Prefixes per ASN: 12.06 RIPE Region origin ASes announcing only one prefix: 1919 RIPE Region transit ASes present in the Internet Routing Table: 687 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 37 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1916 Number of RIPE addresses announced to Internet: 280797392 Equivalent to 16 /8s, 188 /16s and 160 /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: 56808 Total LACNIC prefixes after maximum aggregation: 16304 LACNIC Deaggregation factor: 3.48 Prefixes being announced from the LACNIC address blocks: 54662 Unique aggregates announced from the LACNIC address blocks: 24046 LACNIC Region origin ASes present in the Internet Routing Table: 4419 LACNIC Prefixes per ASN: 12.37 LACNIC Region origin ASes announcing only one prefix: 1586 LACNIC Region transit ASes present in the Internet Routing Table: 855 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: 3419 Number of LACNIC addresses announced to Internet: 107782496 Equivalent to 6 /8s, 108 /16s and 161 /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: 10608 Total AfriNIC prefixes after maximum aggregation: 2537 AfriNIC Deaggregation factor: 4.18 Prefixes being announced from the AfriNIC address blocks: 16037 Unique aggregates announced from the AfriNIC address blocks: 7790 AfriNIC Region origin ASes present in the Internet Routing Table: 303 AfriNIC Prefixes per ASN: 52.93 AfriNIC Region origin ASes announcing only one prefix: 117 AfriNIC Region transit ASes present in the Internet Routing Table: 84 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: 174 Number of AfriNIC addresses announced to Internet: 44919040 Equivalent to 2 /8s, 173 /16s and 105 /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 13321 8729 120 CHINAMOBILE-CN China Mobile Communication 56046 3354 832 195 CMNET-JIANGSU-AP China Mobile communicati 17561 2222 140 497 LCS-AS-AP LARUS Limited, HK 56041 1762 714 79 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1709 192 50 CMNET-HUNAN-AP China Mobile communication 24444 1055 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 14187 38743 5432 AMAZON-02, US 22773 4776 3099 364 ASN-CXA-ALL-CCI-22773-RDC, US 749 3144 54729 2395 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 1805 1822 819 DNIC-ASBLK-00306-00371, US 209 1640 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 1276 98 1032 AKAMAI-ASN1, NL 25019 1147 1335 138 SAUDINETSTC-AS, SA 34984 993 161 746 TELLCOM-AS, TR 8452 908 1841 17 TE-AS TE-AS, EG 3215 899 4820 299 France Telecom - Orange, FR 212238 704 49 619 CDNEXT, GB 51167 565 113 248 CONTABO, DE 8376 551 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 7197 1909 785 UNINET, MX 11830 1991 369 65 Instituto Costarricense de Electricidad y 10620 1536 217 1148 Telmex Colombia S.A., CO 11664 1365 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 1010 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 944 389 16 LINKdotNET-AS, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 572 82 3 KENET-AS, KE 36935 509 135 138 Vodafone-, EG 36903 506 235 346 MT-MPLS, MA 29571 422 78 20 ORANGE-COTE-IVOIRE, CI 36992 382 869 246 ETISALAT-MISR, EG 2018 375 318 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 14187 38743 5432 AMAZON-02, US 9808 13321 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 7197 1909 785 UNINET, MX 39891 4969 306 72 ALJAWWALSTC-AS, SA 22773 4776 3099 364 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3354 832 195 CMNET-JIANGSU-AP China Mobile communicati 749 3144 54729 2395 DNIC-AS-00749, US 36352 2419 200 1147 AS-COLOCROSSING, US 17561 2222 140 497 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 13321 13201 CHINAMOBILE-CN China Mobile Communications Grou 8151 7197 6412 UNINET, MX 39891 4969 4897 ALJAWWALSTC-AS, SA 22773 4776 4412 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 17561 2222 1725 LCS-AS-AP LARUS Limited, HK 11776 1904 1691 ATLANTICBB-JOHNSTOWN, US 56041 1762 1683 CMNET-ZHEJIANG-AP China Mobile communications c 56047 1709 1659 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 /10:31 /11:51 /12:159 /13:213 /14:574 /15:1066 /16:7501 /17:3490 /18:4164 /19:7655 /20:13164 /21:16170 /22:28634 /23:29510 /24:176500 /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 3947 7197 UNINET, MX 39891 3655 4969 ALJAWWALSTC-AS, SA 22773 3050 4776 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2518 14187 AMAZON-02, US 11830 1695 1991 Instituto Costarricense de Electricidad y Telecom., CR 19901 1052 1477 BRIGHTSPEED, US 11664 1051 1365 Techtel LMDS Comunicaciones Interactivas S.A., AR 36352 1015 2419 AS-COLOCROSSING, US 209 954 1640 CENTURYLINK-US-LEGACY-QWEST, US 10620 921 1536 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:45 2:460 3:974 4:5 5:1191 6:174 7:5 8:633 9:5 11:172 12:879 13:579 14:179 15:359 16:250 17:3 18:910 20:203 21:4 22:188 23:2882 24:663 27:55 29:19 31:516 32:13 34:7 35:182 36:3313 37:634 38:2352 39:828 40:247 41:1106 42:23 43:209 44:30 45:4519 46:950 47:160 49:18 50:483 51:523 52:1077 54:228 55:1109 56:11 57:30 58:47 59:42 60:74 61:60 62:602 63:721 64:2212 65:1002 66:2354 67:1119 68:499 69:1223 70:440 71:155 72:700 74:970 75:293 76:237 77:418 78:570 79:240 80:346 81:384 82:832 83:209 84:343 85:641 86:235 87:205 88:278 89:649 90:100 91:936 92:677 93:957 94:984 95:1315 96:289 97:44 98:389 99:279 100:22 101:23 102:531 103:1288 104:1713 105:167 106:4 107:1686 108:519 109:392 110:94 111:2755 112:1266 113:33 114:34 115:55 116:55 117:1503 118:69 119:88 120:1926 121:38 122:77 123:130 124:69 125:49 128:568 129:377 130:703 131:1129 132:557 133:220 134:500 135:135 136:739 137:605 138:995 139:448 140:760 141:383 142:1470 143:870 144:502 145:193 146:685 147:470 148:976 149:724 150:229 151:875 152:817 153:282 154:2410 155:1077 156:2065 157:491 158:645 159:837 160:631 161:729 162:973 163:417 164:736 165:630 166:579 167:715 168:1461 169:164 170:1843 171:101 172:1551 173:783 174:279 175:99 176:650 177:872 178:628 179:905 180:45 181:2478 182:27 183:1612 184:438 185:3555 186:3417 187:1675 188:1052 189:1875 190:6319 191:575 192:5076 193:1727 194:1113 195:963 196:706 197:1053 198:2694 199:2465 200:4661 201:3664 202:1125 203:834 204:2197 205:1787 206:1493 207:1714 208:1714 209:1917 210:438 211:512 212:1103 213:872 214:978 215:43 216:2492 217:562 218:647 219:29 220:82 221:534 222:29 223:1664 End of report