IPv4 R&E Routing Table Report 23:00 GMT Mon 04 May, 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: 1043800 Prefixes after maximum aggregation (per Origin AS): 400388 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 515756 Number of IPv4 prefixes with a valid ROA: 640573 Number of IPv4 prefixes with an invalid ROA: 527 Number of IPv4 prefixes with no ROA: 402700 Total ASes present in the Internet Routing Table: 78328 Prefixes per ASN: 13.33 Origin-only ASes present in the Internet Routing Table: 67130 Origin ASes announcing only one prefix: 27359 Transit ASes present in the Internet Routing Table: 11198 Transit-only ASes present in the Internet Routing Table: 594 Paths with bogon ASNs present in the IPv4 Routing Table: 40 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 216 Max AS path prepend of ASN (205624) 211 Prefixes from unregistered ASNs in the Routing Table: 997 Number of instances of unregistered ASNs: 1026 Number of 32-bit ASNs allocated by the RIRs: 49617 Number of 32-bit ASNs visible in the Routing Table: 40498 Prefixes from 32-bit ASNs in the Routing Table: 229149 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: 422 Number of addresses announced to Internet: 3103332352 Equivalent to 184 /8s, 249 /16s and 24 /24s Percentage of available address space announced: 83.8 Percentage of allocated address space announced: 83.8 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: 340607 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 285430 Total APNIC prefixes after maximum aggregation: 82632 APNIC Deaggregation factor: 3.45 Prefixes being announced from the APNIC address blocks: 271544 Unique aggregates announced from the APNIC address blocks: 107751 APNIC Region origin ASes present in the Internet Routing Table: 15152 APNIC Prefixes per ASN: 17.92 APNIC Region origin ASes announcing only one prefix: 4597 APNIC Region transit ASes present in the Internet Routing Table: 2055 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10752 Number of APNIC addresses announced to Internet: 747677440 Equivalent to 44 /8s, 144 /16s and 167 /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: 302030 Total ARIN prefixes after maximum aggregation: 136365 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 301392 Unique aggregates announced from the ARIN address blocks: 147478 ARIN Region origin ASes present in the Internet Routing Table: 19398 ARIN Prefixes per ASN: 15.54 ARIN Region origin ASes announcing only one prefix: 7110 ARIN Region transit ASes present in the Internet Routing Table: 1891 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 216 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5560 Number of ARIN addresses announced to Internet: 1348092416 Equivalent to 80 /8s, 90 /16s and 66 /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, 393216-404380 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: 289394 Total RIPE prefixes after maximum aggregation: 143009 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 292494 Unique aggregates announced from the RIPE address blocks: 190734 RIPE Region origin ASes present in the Internet Routing Table: 29439 RIPE Prefixes per ASN: 9.94 RIPE Region origin ASes announcing only one prefix: 12205 RIPE Region transit ASes present in the Internet Routing Table: 4084 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13360 Number of RIPE addresses announced to Internet: 733251328 Equivalent to 43 /8s, 180 /16s and 135 /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: 128696 Total LACNIC prefixes after maximum aggregation: 30799 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 123159 Unique aggregates announced from the LACNIC address blocks: 50306 LACNIC Region origin ASes present in the Internet Routing Table: 11390 LACNIC Prefixes per ASN: 10.81 LACNIC Region origin ASes announcing only one prefix: 2714 LACNIC Region transit ASes present in the Internet Routing Table: 2579 Average LACNIC Region AS path length visible: 5.4 Max LACNIC Region AS path length visible: 68 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9435 Number of LACNIC addresses announced to Internet: 169899776 Equivalent to 10 /8s, 32 /16s and 119 /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: 37253 Total AfriNIC prefixes after maximum aggregation: 6973 AfriNIC Deaggregation factor: 5.34 Prefixes being announced from the AfriNIC address blocks: 54789 Unique aggregates announced from the AfriNIC address blocks: 19123 AfriNIC Region origin ASes present in the Internet Routing Table: 2023 AfriNIC Prefixes per ASN: 27.08 AfriNIC Region origin ASes announcing only one prefix: 733 AfriNIC Region transit ASes present in the Internet Routing Table: 383 Average AfriNIC Region AS path length visible: 5.2 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1391 Number of AfriNIC addresses announced to Internet: 104216576 Equivalent to 6 /8s, 54 /16s and 56 /24s AfriNIC AS Blocks 36864-37887, 327680-330751 & 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 13863 8761 121 CHINAMOBILE-CN China Mobile Communication 7545 5884 826 483 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4936 552 322 BBIL-AP BHARTI Airtel Ltd., IN 18403 4552 347 26 FPT-AS-AP FPT Telecom Company, VN 7552 4065 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3705 1044 64 TELKOMNET-AS-AP PT Telekomunikasi Indones 17561 3541 223 593 LCS-AS-AP LARUS Limited, HK 56046 3538 887 177 CMNET-JIANGSU-AP China Mobile communicati 45899 3365 1868 100 VNPT-AS-VN VNPT Corp, VN 24560 2902 813 660 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 14821 41292 5706 AMAZON-02 - Amazon.com, Inc., US 22773 4764 3115 353 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4653 309 1047 CABLEONE - CABLE ONE, INC., US 7155 3870 286 90 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3726 1305 75 SHAW - Shaw Communications, CA 396982 3337 4864 506 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3138 54728 2389 DNIC-AS-00749 - United States Department 36352 2721 222 905 AS-COLOCROSSING - HostPapa, US 7029 2635 2561 921 WINDSTREAM - Windstream Communications LL 30036 2607 358 464 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom C 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 7172 1711 149 UNI2-AS, ES 39891 4943 305 72 ALJAWWALSTC-AS, SA 9009 3836 353 2255 M247, RO 20940 3795 3389 110 AKAMAI-ASN1, NL 12389 3141 2321 870 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2764 202 2036 CDNEXT, GB 34984 2452 365 580 TELLCOM-AS, TR 8452 1709 1852 14 TE-AS TE-AS, EG 203020 1655 252 831 HOSTROYALE, IN 13188 1607 100 27 TRIOLAN, UA 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 12849 3294 633 UNINET, MX 10620 3429 450 1105 Telmex Colombia S.A., CO 13999 2432 506 350 Mega Cable, S.A. de C.V., MX 11830 1935 369 65 Instituto Costarricense de Electricidad y 11664 1446 277 34 Techtel LMDS Comunicaciones Interactivas 28573 1375 2431 268 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1228 379 23 INTEGRATEL PERU S.A.A., PE 26615 1073 2392 100 TIM SA, BR 22884 1072 70 363 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 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 2027 649 36 RAYA-AS, EG 36992 1860 1533 334 ETISALAT-MISR, EG 24863 1272 389 16 LINKdotNET-AS, EG 36935 1255 522 44 Vodafone-, EG 36903 1232 555 98 MT-MPLS, MA 37069 1117 1100 11 MOBINIL, EG 29571 1070 70 18 ORANGE-COTE-IVOIRE, CI 20011 589 155 220 NTT-DATA-Inc, ZA 328608 562 53 158 Africa-on-Cloud-AS, ZA 36914 559 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 14821 41292 5706 AMAZON-02 - Amazon.com, Inc., US 9808 13863 8761 121 CHINAMOBILE-CN China Mobile Communication 8151 12849 3294 633 UNINET, MX 12479 7172 1711 149 UNI2-AS, ES 7545 5884 826 483 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4943 305 72 ALJAWWALSTC-AS, SA 9498 4936 552 322 BBIL-AP BHARTI Airtel Ltd., IN 22773 4764 3115 353 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4653 309 1047 CABLEONE - CABLE ONE, INC., US 18403 4552 347 26 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 13863 13742 CHINAMOBILE-CN China Mobile Communications Grou 8151 12849 12216 UNINET, MX 12479 7172 7023 UNI2-AS, ES 7545 5884 5401 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4943 4871 ALJAWWALSTC-AS, SA 9498 4936 4614 BBIL-AP BHARTI Airtel Ltd., IN 18403 4552 4526 FPT-AS-AP FPT Telecom Company, VN 22773 4764 4411 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4065 4037 VIETEL-AS-AP Viettel Group, VN 7155 3870 3780 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 395729 UNALLOCATED 8.28.58.0/24 32787 PROLEXIC-TECHNOLOGIES-D 395729 UNALLOCATED 8.28.60.0/24 32787 PROLEXIC-TECHNOLOGIES-D 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 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 /10:39 /11:95 /12:297 /13:581 /14:1185 /15:2098 /16:13583 /17:8250 /18:13277 /19:25415 /20:45707 /21:52368 /22:113542 /23:107651 /24:659682 /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 7046 12849 UNINET, MX 12479 6113 7172 UNI2-AS, ES 39891 3628 4943 ALJAWWALSTC-AS, SA 11492 3517 4653 CABLEONE - CABLE ONE, INC., US 6327 3507 3726 SHAW - Shaw Communications, CA 22773 3052 4764 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2825 3870 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2671 14821 AMAZON-02 - Amazon.com, Inc., US 30036 2261 2607 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2233 3429 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) ---------------------------------------------- 1:2490 2:2002 3:1003 4:5 5:5173 6:199 7:6 8:1489 9:43 11:172 12:1183 13:701 14:2703 15:462 16:208 17:441 18:922 20:589 21:4 22:188 23:8175 24:2765 25:2 27:2806 28:1 29:19 31:3491 32:35 34:90 35:284 36:4758 37:4437 38:9711 39:1295 40:438 41:4568 42:2170 43:3158 44:451 45:19835 46:4861 47:439 48:127 49:2348 50:2014 51:677 52:1320 54:280 55:1205 56:11 57:321 58:2362 59:1382 60:1176 61:3163 62:3114 63:1700 64:6346 65:2140 66:6117 67:3265 68:1500 69:4220 70:1058 71:607 72:3180 74:3042 75:1501 76:591 77:2934 78:2016 79:1793 80:2346 81:2232 82:4138 83:1450 84:2120 85:3840 86:1090 87:2480 88:1335 89:4800 90:811 91:8461 92:2821 93:3019 94:4400 95:4717 96:1452 97:315 98:943 99:830 100:70 101:1626 102:4512 103:33029 104:5374 105:863 106:900 107:2881 108:1253 109:4236 110:2290 111:4126 112:3174 113:1976 114:2280 115:2311 116:2161 117:3491 118:3041 119:2084 120:2710 121:1542 122:2987 123:2289 124:1707 125:3033 126:126 128:1574 129:966 130:1644 131:2464 132:886 133:486 134:1667 135:606 136:1539 137:1352 138:3345 139:1615 140:1765 141:1739 142:2551 143:2082 144:1776 145:636 146:2185 147:2241 148:2801 149:3078 150:1376 151:2908 152:2559 153:1500 154:9901 155:2307 156:4980 157:2393 158:1577 159:2865 160:3836 161:1948 162:4054 163:2544 164:2427 165:2668 166:1283 167:2306 168:4012 169:870 170:5590 171:1134 172:4741 173:3457 174:880 175:1364 176:3869 177:4881 178:4382 179:2317 180:3186 181:4566 182:4025 183:2829 184:2013 185:21861 186:6076 187:4993 188:4553 189:4559 190:9848 191:1674 192:11454 193:9615 194:7887 195:5819 196:3365 197:3338 198:6109 199:6062 200:8103 201:6404 202:10656 203:10645 204:4760 205:3685 206:4458 207:3852 208:4370 209:5429 210:4732 211:2688 212:5083 213:4104 214:1047 215:47 216:7297 217:3579 218:1699 219:416 220:2192 221:1344 222:938 223:3441 End of report