IPv4 R&E Routing Table Report 23:00 GMT Sun 25 Jan, 2026 IPv4 BGP Table (Global) as seen at Singapore. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Singapore/ Analysis Summary ---------------- BGP routing table entries examined: 1026598 Prefixes after maximum aggregation (per Origin AS): 395026 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 507423 Number of IPv4 prefixes with a valid ROA: 613513 Number of IPv4 prefixes with an invalid ROA: 578 Number of IPv4 prefixes with no ROA: 412507 Total ASes present in the Internet Routing Table: 77753 Prefixes per ASN: 13.20 Origin-only ASes present in the Internet Routing Table: 66630 Origin ASes announcing only one prefix: 27174 Transit ASes present in the Internet Routing Table: 11123 Transit-only ASes present in the Internet Routing Table: 569 Paths with bogon ASNs present in the IPv4 Routing Table: 42 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 209 Max AS path prepend of ASN (214570) 200 Prefixes from unregistered ASNs in the Routing Table: 1073 Number of instances of unregistered ASNs: 1102 Number of 32-bit ASNs allocated by the RIRs: 48503 Number of 32-bit ASNs visible in the Routing Table: 39690 Prefixes from 32-bit ASNs in the Routing Table: 221200 Number of bogon 32-bit ASNs visible in the Routing Table: 76 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 464 Number of addresses announced to Internet: 3105877248 Equivalent to 185 /8s, 31 /16s and 237 /24s Percentage of available address space announced: 83.9 Percentage of allocated address space announced: 83.9 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: 334397 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 280551 Total APNIC prefixes after maximum aggregation: 81834 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 266734 Unique aggregates announced from the APNIC address blocks: 106990 APNIC Region origin ASes present in the Internet Routing Table: 14990 APNIC Prefixes per ASN: 17.79 APNIC Region origin ASes announcing only one prefix: 4555 APNIC Region transit ASes present in the Internet Routing Table: 1997 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10573 Number of APNIC addresses announced to Internet: 753752576 Equivalent to 44 /8s, 237 /16s and 90 /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: 299779 Total ARIN prefixes after maximum aggregation: 135063 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 299678 Unique aggregates announced from the ARIN address blocks: 146063 ARIN Region origin ASes present in the Internet Routing Table: 19358 ARIN Prefixes per ASN: 15.48 ARIN Region origin ASes announcing only one prefix: 7074 ARIN Region transit ASes present in the Internet Routing Table: 1919 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 28 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5441 Number of ARIN addresses announced to Internet: 1343623680 Equivalent to 80 /8s, 22 /16s and 18 /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: 282570 Total RIPE prefixes after maximum aggregation: 140005 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 284463 Unique aggregates announced from the RIPE address blocks: 184909 RIPE Region origin ASes present in the Internet Routing Table: 29157 RIPE Prefixes per ASN: 9.76 RIPE Region origin ASes announcing only one prefix: 12128 RIPE Region transit ASes present in the Internet Routing Table: 4057 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 209 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12949 Number of RIPE addresses announced to Internet: 734108160 Equivalent to 43 /8s, 193 /16s and 154 /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: 126159 Total LACNIC prefixes after maximum aggregation: 30509 LACNIC Deaggregation factor: 4.14 Prefixes being announced from the LACNIC address blocks: 121800 Unique aggregates announced from the LACNIC address blocks: 49476 LACNIC Region origin ASes present in the Internet Routing Table: 11348 LACNIC Prefixes per ASN: 10.73 LACNIC Region origin ASes announcing only one prefix: 2676 LACNIC Region transit ASes present in the Internet Routing Table: 2559 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 68 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9352 Number of LACNIC addresses announced to Internet: 170772992 Equivalent to 10 /8s, 45 /16s and 202 /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: 36466 Total AfriNIC prefixes after maximum aggregation: 6922 AfriNIC Deaggregation factor: 5.27 Prefixes being announced from the AfriNIC address blocks: 53459 Unique aggregates announced from the AfriNIC address blocks: 19588 AfriNIC Region origin ASes present in the Internet Routing Table: 2008 AfriNIC Prefixes per ASN: 26.62 AfriNIC Region origin ASes announcing only one prefix: 741 AfriNIC Region transit ASes present in the Internet Routing Table: 382 Average AfriNIC Region AS path length visible: 5.2 Max AfriNIC Region AS path length visible: 58 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1375 Number of AfriNIC addresses announced to Internet: 103335680 Equivalent to 6 /8s, 40 /16s and 199 /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 13531 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 6023 833 572 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4703 543 338 BBIL-AP BHARTI Airtel Ltd., IN 18403 4442 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4038 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3729 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3422 832 183 CMNET-JIANGSU-AP China Mobile communicati 45899 3328 1868 98 VNPT-AS-VN VNPT Corp, VN 17561 3190 200 621 LCS-AS-AP LARUS Limited, HK 24560 2963 865 507 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13990 38809 5439 AMAZON-02 - Amazon.com, Inc., US 22773 4779 3100 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4636 308 1027 CABLEONE - CABLE ONE, INC., US 7155 3858 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3699 1321 71 SHAW - Shaw Communications, CA 396982 3331 4868 501 GOOGLE-CLOUD-PLATFORM - Google LLC, US 174 3151 8768 848 COGENT-174 - Cogent Communications, LLC, 749 3142 54729 2393 DNIC-AS-00749 - United States Department 16625 2819 1209 2121 AKAMAI-AS - Akamai Technologies, Inc., US 36352 2702 222 893 AS-COLOCROSSING - HostPapa, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7237 1711 149 UNI2-AS, ES 39891 4969 306 72 ALJAWWALSTC-AS, SA 9009 3913 366 2238 M247, RO 20940 3830 3393 111 AKAMAI-ASN1, NL 12389 3150 2317 869 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2565 182 1862 CDNEXT, GB 34984 2424 364 576 TELLCOM-AS, TR 8452 1712 1852 14 TE-AS TE-AS, EG 13188 1607 100 27 TRIOLAN, UA 203020 1592 241 766 HOSTROYALE, IN Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12668 3298 606 UNINET, MX 10620 3445 457 1107 Telmex Colombia S.A., CO 13999 2484 508 351 Mega Cable, S.A. de C.V., MX 11830 1991 369 65 Instituto Costarricense de Electricidad y 28573 1375 2430 272 Claro NXT Telecomunicacoes Ltda, BR 3816 1339 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1259 371 22 INTEGRATEL PERU S.A.A., PE 22884 1056 67 358 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1015 2486 56 TIM SA, BR 18881 910 1127 31 TELEFONICA BRASIL S.A, BR Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1983 646 33 RAYA-AS, EG 36992 1843 1532 339 ETISALAT-MISR, EG 24863 1280 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1128 521 44 Vodafone-, EG 37069 1117 1112 11 MOBINIL, EG 29571 1070 78 20 ORANGE-COTE-IVOIRE, CI 20011 580 154 212 NTT-DATA-Inc, ZA 328608 563 48 174 Africa-on-Cloud-AS, ZA 36914 554 82 3 KENET-AS, KE Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13990 38809 5439 AMAZON-02 - Amazon.com, Inc., US 9808 13531 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12668 3298 606 UNINET, MX 12479 7237 1711 149 UNI2-AS, ES 7545 6023 833 572 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 306 72 ALJAWWALSTC-AS, SA 22773 4779 3100 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 9498 4703 543 338 BBIL-AP BHARTI Airtel Ltd., IN 11492 4636 308 1027 CABLEONE - CABLE ONE, INC., US 18403 4442 347 24 FPT-AS-AP FPT Telecom Company, VN Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 13531 13411 CHINAMOBILE-CN China Mobile Communications Grou 8151 12668 12062 UNINET, MX 12479 7237 7088 UNI2-AS, ES 7545 6023 5451 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 4897 ALJAWWALSTC-AS, SA 18403 4442 4418 FPT-AS-AP FPT Telecom Company, VN 22773 4779 4414 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 9498 4703 4365 BBIL-AP BHARTI Airtel Ltd., IN 7552 4038 4009 VIETEL-AS-AP Viettel Group, VN 7155 3858 3773 VIASAT-SP-BACKBONE - ViaSat,Inc., US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887 - C 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3 - Level 3 Parent 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE - Phonos 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3 - Level 3 Parent 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3 - Level 3 Parent 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174 - Cogent Com 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 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 Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS 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: 174 COGENT-174 - Cogent Communications, LLC, 23.137.200.0/24 Origin: 16276 OVH, FR 23.137.200.0/24 Transit: 174 COGENT-174 - Cogent Communications, LLC, 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 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS - UnReal Servers, LLC, US Complete listing at https://bgp.nsrc.org/REN/Singapore/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 /8:16 /9:14 /10:40 /11:93 /12:302 /13:578 /14:1198 /15:2088 /16:13669 /17:8191 /18:13474 /19:24746 /20:44772 /21:52082 /22:113176 /23:106014 /24:646145 /25:0 /26:0 /27:0 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 6841 12668 UNINET, MX 12479 6167 7237 UNI2-AS, ES 39891 3655 4969 ALJAWWALSTC-AS, SA 11492 3496 4636 CABLEONE - CABLE ONE, INC., US 6327 3479 3699 SHAW - Shaw Communications, CA 22773 3049 4779 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2817 3858 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2474 13990 AMAZON-02 - Amazon.com, Inc., US 30036 2306 2647 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2225 3445 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2509 2:1516 3:968 4:9 5:5027 6:186 7:6 8:1496 9:14 11:172 12:1226 13:613 14:2636 15:418 16:179 17:390 18:916 20:597 21:4 22:188 23:8125 24:2615 25:2 27:2818 29:19 31:3433 32:31 34:84 35:289 36:4657 37:4494 38:9887 39:1254 40:439 41:4526 42:1963 43:2982 44:416 45:19753 46:4950 47:400 48:38 49:2198 50:2053 51:598 52:1257 54:238 55:1115 56:11 57:307 58:2347 59:1350 60:1172 61:3138 62:3098 63:1766 64:6188 65:2124 66:5990 67:3254 68:1486 69:4208 70:1030 71:616 72:3088 74:2958 75:1513 76:605 77:2746 78:1921 79:1802 80:2303 81:2122 82:4033 83:1471 84:2019 85:3684 86:1104 87:2243 88:1340 89:4654 90:821 91:8398 92:2854 93:3011 94:4283 95:4524 96:1443 97:312 98:951 99:784 100:69 101:1582 102:4347 103:32951 104:5449 105:787 106:916 107:2824 108:1220 109:4234 110:2313 111:4054 112:3121 113:1982 114:2170 115:2259 116:2181 117:3307 118:3001 119:2114 120:2589 121:1516 122:2956 123:2296 124:1655 125:2984 126:125 128:1641 129:939 130:1559 131:2288 132:768 133:461 134:1614 135:540 136:1624 137:1278 138:2983 139:1611 140:1769 141:1562 142:2465 143:2156 144:1569 145:632 146:2192 147:2273 148:2806 149:2938 150:1332 151:2638 152:2269 153:850 154:9642 155:2301 156:4818 157:2253 158:1493 159:2748 160:3657 161:1999 162:4021 163:2331 164:1969 165:2644 166:1288 167:2208 168:3931 169:900 170:5457 171:1116 172:4571 173:3427 174:889 175:1370 176:3759 177:4722 178:4317 179:2284 180:3133 181:4397 182:3902 183:2752 184:2008 185:21669 186:5553 187:4861 188:4620 189:4467 190:9672 191:1522 192:11418 193:9493 194:7837 195:5649 196:3266 197:3271 198:6057 199:6110 200:8045 201:6396 202:10590 203:10621 204:4705 205:3695 206:4345 207:3811 208:4358 209:5397 210:4743 211:2685 212:4953 213:4031 214:1056 215:54 216:7141 217:3453 218:1620 219:421 220:2193 221:1313 222:910 223:3302 End of report