IPv4 R&E Routing Table Report 20:15 GMT Sun 25 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: 288187 Prefixes after maximum aggregation (per Origin AS): 118809 Deaggregation factor: 2.43 Unique aggregates announced (without unneeded subnets): 148873 Number of IPv4 prefixes with a valid ROA: 145975 Number of IPv4 prefixes with an invalid ROA: 203 Number of IPv4 prefixes with no ROA: 142009 Total ASes present in the Internet Routing Table: 20675 Prefixes per ASN: 13.94 Origin-only ASes present in the Internet Routing Table: 17798 Origin ASes announcing only one prefix: 8008 Transit ASes present in the Internet Routing Table: 2877 Transit-only ASes present in the Internet Routing Table: 729 Paths with bogon ASNs present in the IPv4 Routing Table: 9 Average AS path length visible in the Internet Routing Table: 5.9 Max AS path length visible: 33 Max AS path prepend of ASN ( 37133) 26 Prefixes from unregistered ASNs in the Routing Table: 249 Number of instances of unregistered ASNs: 278 Number of 32-bit ASNs allocated by the RIRs: 48503 Number of 32-bit ASNs visible in the Routing Table: 8478 Prefixes from 32-bit ASNs in the Routing Table: 34661 Number of bogon 32-bit ASNs visible in the Routing Table: 72 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 102 Number of addresses announced to Internet: 1612781765 Equivalent to 96 /8s, 33 /16s and 24 /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: 92778 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 43347 Total APNIC prefixes after maximum aggregation: 8998 APNIC Deaggregation factor: 4.82 Prefixes being announced from the APNIC address blocks: 39969 Unique aggregates announced from the APNIC address blocks: 9205 APNIC Region origin ASes present in the Internet Routing Table: 1326 APNIC Prefixes per ASN: 30.14 APNIC Region origin ASes announcing only one prefix: 560 APNIC Region transit ASes present in the Internet Routing Table: 230 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: 646 Number of APNIC addresses announced to Internet: 171144300 Equivalent to 10 /8s, 51 /16s and 116 /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: 126259 Total ARIN prefixes after maximum aggregation: 64861 ARIN Deaggregation factor: 1.95 Prefixes being announced from the ARIN address blocks: 123748 Unique aggregates announced from the ARIN address blocks: 70341 ARIN Region origin ASes present in the Internet Routing Table: 9097 ARIN Prefixes per ASN: 13.60 ARIN Region origin ASes announcing only one prefix: 3778 ARIN Region transit ASes present in the Internet Routing Table: 848 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: 2180 Number of ARIN addresses announced to Internet: 1008190505 Equivalent to 60 /8s, 23 /16s and 196 /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: 51334 Total RIPE prefixes after maximum aggregation: 26021 RIPE Deaggregation factor: 1.97 Prefixes being announced from the RIPE address blocks: 54106 Unique aggregates announced from the RIPE address blocks: 37527 RIPE Region origin ASes present in the Internet Routing Table: 4503 RIPE Prefixes per ASN: 12.02 RIPE Region origin ASes announcing only one prefix: 1929 RIPE Region transit ASes present in the Internet Routing Table: 683 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 22 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1898 Number of RIPE addresses announced to Internet: 280717520 Equivalent to 16 /8s, 187 /16s and 104 /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: 56489 Total LACNIC prefixes after maximum aggregation: 16405 LACNIC Deaggregation factor: 3.44 Prefixes being announced from the LACNIC address blocks: 54334 Unique aggregates announced from the LACNIC address blocks: 24239 LACNIC Region origin ASes present in the Internet Routing Table: 4608 LACNIC Prefixes per ASN: 11.79 LACNIC Region origin ASes announcing only one prefix: 1627 LACNIC Region transit ASes present in the Internet Routing Table: 912 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 30 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3590 Number of LACNIC addresses announced to Internet: 106623072 Equivalent to 6 /8s, 90 /16s and 240 /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: 10509 Total AfriNIC prefixes after maximum aggregation: 2328 AfriNIC Deaggregation factor: 4.51 Prefixes being announced from the AfriNIC address blocks: 15928 Unique aggregates announced from the AfriNIC address blocks: 7469 AfriNIC Region origin ASes present in the Internet Routing Table: 299 AfriNIC Prefixes per ASN: 53.27 AfriNIC Region origin ASes announcing only one prefix: 114 AfriNIC Region transit ASes present in the Internet Routing Table: 82 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: 164 Number of AfriNIC addresses announced to Internet: 45963008 Equivalent to 2 /8s, 189 /16s and 87 /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 13350 8729 120 CHINAMOBILE-CN China Mobile Communication 56046 3357 832 195 CMNET-JIANGSU-AP China Mobile communicati 17561 2263 142 510 LCS-AS-AP LARUS Limited, HK 56041 1765 714 79 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1710 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 900 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24445 767 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 668 1167 155 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 13988 38809 5438 AMAZON-02 - Amazon.com, Inc., US 22773 4777 3100 364 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 749 3142 54729 2393 DNIC-AS-00749 - United States Department 36352 2418 200 1149 AS-COLOCROSSING - HostPapa, US 6167 1974 4173 531 CELLCO-PART - Verizon Business, US 11776 1905 259 213 ATLANTICBB-JOHNSTOWN - Breezeline, US 367 1705 1490 787 DNIC-ASBLK-00306-00371 - United States De 209 1639 4882 263 CENTURYLINK-US-LEGACY-QWEST - CenturyLink 19901 1479 727 700 BRIGHTSPEED - Brightspeed, US 20057 1442 1017 111 ATT-MOBILITY-LLC-AS20057 - AT&T Enterpris 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 1246 95 1015 AKAMAI-ASN1, NL 25019 1142 1335 138 SAUDINETSTC-AS, SA 34984 984 151 739 TELLCOM-AS, TR 8452 901 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 549 53 25 Jordan Data Communications, JO 5511 528 98 448 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 7287 1922 783 UNINET, MX 11830 1991 369 65 Instituto Costarricense de Electricidad y 10620 1519 211 1131 Telmex Colombia S.A., CO 11664 1396 278 31 Techtel LMDS Comunicaciones Interactivas 3816 1339 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1258 371 22 INTEGRATEL PERU S.A.A., PE 26615 1012 2486 56 TIM SA, BR 18881 910 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 1451 463 90 RAYA-AS, EG 37069 1095 1100 11 MOBINIL, EG 24863 947 389 16 LINKdotNET-AS, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 558 82 3 KENET-AS, KE 36935 510 515 10 Vodafone-, EG 36903 503 233 345 MT-MPLS, MA 29571 422 78 20 ORANGE-COTE-IVOIRE, CI 36992 386 870 246 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 13988 38809 5438 AMAZON-02 - Amazon.com, Inc., US 9808 13350 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 7287 1922 783 UNINET, MX 39891 4969 306 72 ALJAWWALSTC-AS, SA 22773 4777 3100 364 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 56046 3357 832 195 CMNET-JIANGSU-AP China Mobile communicati 749 3142 54729 2393 DNIC-AS-00749 - United States Department 36352 2418 200 1149 AS-COLOCROSSING - HostPapa, US 17561 2263 142 510 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 13350 13230 CHINAMOBILE-CN China Mobile Communications Grou 8151 7287 6504 UNINET, MX 39891 4969 4897 ALJAWWALSTC-AS, SA 22773 4777 4413 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 56046 3357 3162 CMNET-JIANGSU-AP China Mobile communications co 11830 1991 1926 Instituto Costarricense de Electricidad y Telec 17561 2263 1753 LCS-AS-AP LARUS Limited, HK 11776 1905 1692 ATLANTICBB-JOHNSTOWN - Breezeline, US 56041 1765 1686 CMNET-ZHEJIANG-AP China Mobile communications c 56047 1710 1660 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 - Phonos 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3 - Level 3 Parent 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4 - AT&T En 395476 UNALLOCATED 12.36.194.0/24 7018 ATT-INTERNET4 - AT&T En 395476 UNALLOCATED 12.36.195.0/24 3356 LEVEL3 - Level 3 Parent 21861 UNALLOCATED 12.37.59.0/24 7018 ATT-INTERNET4 - AT&T En 33684 UNALLOCATED 12.37.144.0/24 7018 ATT-INTERNET4 - AT&T En 31781 UNALLOCATED 12.71.107.0/24 7018 ATT-INTERNET4 - AT&T En 21861 UNALLOCATED 12.106.212.0/24 7018 ATT-INTERNET4 - AT&T En 26295 UNALLOCATED 12.110.210.0/23 7018 ATT-INTERNET4 - AT&T En 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 - Hurricane Electric LLC, 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 - Arvig Enterprises Inc., US 23.137.48.0/24 Transit: 3257 GTT-BACKBONE GTT, US 23.140.216.0/24 Origin: 27176 DATAWAGON - DataWagon LLC, US 23.140.216.0/24 Transit: 20278 NEXEON - Nexeon Technologies, Inc., US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS - Charter Communicat 23.155.185.0/24 Origin: 401541 OSIE - Osie, US 23.155.185.0/24 Transit: 397423 TIER-NET - Tier.Net Technologies LLC, US 23.157.217.0/24 Origin: 401541 OSIE - Osie, US 23.157.217.0/24 Transit: 397423 TIER-NET - Tier.Net Technologies LLC, 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 /11:52 /12:159 /13:213 /14:577 /15:1064 /16:7489 /17:3476 /18:4157 /19:7639 /20:13125 /21:16160 /22:28529 /23:29717 /24:175543 /25:61 /26:80 /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 4000 7287 UNINET, MX 39891 3655 4969 ALJAWWALSTC-AS, SA 22773 3050 4777 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 16509 2473 13988 AMAZON-02 - Amazon.com, Inc., US 11830 1695 1991 Instituto Costarricense de Electricidad y Telecom., CR 11664 1082 1396 Techtel LMDS Comunicaciones Interactivas S.A., AR 19901 1052 1479 BRIGHTSPEED - Brightspeed, US 36352 1015 2418 AS-COLOCROSSING - HostPapa, US 209 953 1639 CENTURYLINK-US-LEGACY-QWEST - CenturyLink Communications, LLC, US 10620 931 1519 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) ---------------------------------------------- 1:72 2:464 3:962 4:5 5:1167 6:173 7:5 8:642 9:5 11:172 12:877 13:555 14:177 15:361 16:154 17:3 18:909 20:204 21:4 22:188 23:2842 24:655 27:47 29:19 31:510 32:13 34:8 35:183 36:3326 37:645 38:2330 39:835 40:250 41:1108 42:23 43:201 44:28 45:4514 46:936 47:166 48:20 49:21 50:497 51:522 52:1080 54:231 55:1108 56:11 57:31 58:44 59:42 60:74 61:58 62:606 63:723 64:2166 65:989 66:2410 67:1090 68:487 69:1209 70:436 71:155 72:711 74:977 75:293 76:239 77:395 78:573 79:246 80:353 81:403 82:835 83:208 84:342 85:636 86:237 87:211 88:278 89:580 90:103 91:931 92:678 93:896 94:975 95:1309 96:285 97:45 98:390 99:270 100:22 101:22 102:507 103:1280 104:1689 105:133 106:3 107:1644 108:516 109:364 110:104 111:2759 112:1309 113:33 114:34 115:55 116:56 117:1516 118:70 119:89 120:1932 121:36 122:78 123:127 124:68 125:49 128:625 129:377 130:714 131:1140 132:556 133:218 134:496 135:137 136:738 137:609 138:1034 139:447 140:766 141:428 142:1459 143:881 144:503 145:196 146:685 147:467 148:1029 149:739 150:227 151:893 152:727 153:270 154:2369 155:1042 156:2093 157:490 158:649 159:835 160:632 161:719 162:979 163:424 164:735 165:620 166:564 167:712 168:1492 169:205 170:1838 171:102 172:1580 173:790 174:274 175:100 176:656 177:992 178:647 179:891 180:45 181:2522 182:23 183:1620 184:435 185:3371 186:3416 187:1722 188:1059 189:1986 190:5933 191:553 192:5062 193:1699 194:1118 195:943 196:682 197:1048 198:2664 199:2462 200:4475 201:3584 202:1108 203:824 204:2191 205:1778 206:1496 207:1712 208:1689 209:1973 210:443 211:514 212:1073 213:861 214:974 215:43 216:2456 217:554 218:648 219:29 220:82 221:536 222:36 223:1668 End of report