IPv4 R&E Routing Table Report 23:00 GMT Tue 05 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: 1043832 Prefixes after maximum aggregation (per Origin AS): 400498 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 515916 Number of IPv4 prefixes with a valid ROA: 640808 Number of IPv4 prefixes with an invalid ROA: 533 Number of IPv4 prefixes with no ROA: 402491 Total ASes present in the Internet Routing Table: 78364 Prefixes per ASN: 13.32 Origin-only ASes present in the Internet Routing Table: 67155 Origin ASes announcing only one prefix: 27367 Transit ASes present in the Internet Routing Table: 11209 Transit-only ASes present in the Internet Routing Table: 600 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: 999 Number of instances of unregistered ASNs: 1028 Number of 32-bit ASNs allocated by the RIRs: 49618 Number of 32-bit ASNs visible in the Routing Table: 40517 Prefixes from 32-bit ASNs in the Routing Table: 229134 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: 421 Number of addresses announced to Internet: 3102987776 Equivalent to 184 /8s, 243 /16s and 214 /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: 340596 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 285508 Total APNIC prefixes after maximum aggregation: 82692 APNIC Deaggregation factor: 3.45 Prefixes being announced from the APNIC address blocks: 271604 Unique aggregates announced from the APNIC address blocks: 107830 APNIC Region origin ASes present in the Internet Routing Table: 15161 APNIC Prefixes per ASN: 17.91 APNIC Region origin ASes announcing only one prefix: 4596 APNIC Region transit ASes present in the Internet Routing Table: 2056 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: 10761 Number of APNIC addresses announced to Internet: 747688704 Equivalent to 44 /8s, 144 /16s and 211 /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: 301999 Total ARIN prefixes after maximum aggregation: 136354 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 301349 Unique aggregates announced from the ARIN address blocks: 147524 ARIN Region origin ASes present in the Internet Routing Table: 19410 ARIN Prefixes per ASN: 15.53 ARIN Region origin ASes announcing only one prefix: 7120 ARIN Region transit ASes present in the Internet Routing Table: 1888 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: 5561 Number of ARIN addresses announced to Internet: 1348035328 Equivalent to 80 /8s, 89 /16s and 99 /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: 289561 Total RIPE prefixes after maximum aggregation: 143059 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 292685 Unique aggregates announced from the RIPE address blocks: 190825 RIPE Region origin ASes present in the Internet Routing Table: 29458 RIPE Prefixes per ASN: 9.94 RIPE Region origin ASes announcing only one prefix: 12211 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: 13377 Number of RIPE addresses announced to Internet: 733089792 Equivalent to 43 /8s, 178 /16s and 16 /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: 128549 Total LACNIC prefixes after maximum aggregation: 30812 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 123027 Unique aggregates announced from the LACNIC address blocks: 50238 LACNIC Region origin ASes present in the Internet Routing Table: 11384 LACNIC Prefixes per ASN: 10.81 LACNIC Region origin ASes announcing only one prefix: 2712 LACNIC Region transit ASes present in the Internet Routing Table: 2587 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: 9432 Number of LACNIC addresses announced to Internet: 169767936 Equivalent to 10 /8s, 30 /16s and 116 /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: 37216 Total AfriNIC prefixes after maximum aggregation: 6969 AfriNIC Deaggregation factor: 5.34 Prefixes being announced from the AfriNIC address blocks: 54746 Unique aggregates announced from the AfriNIC address blocks: 19136 AfriNIC Region origin ASes present in the Internet Routing Table: 2017 AfriNIC Prefixes per ASN: 27.14 AfriNIC Region origin ASes announcing only one prefix: 728 AfriNIC Region transit ASes present in the Internet Routing Table: 385 Average AfriNIC Region AS path length visible: 5.3 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1386 Number of AfriNIC addresses announced to Internet: 104211456 Equivalent to 6 /8s, 54 /16s and 36 /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 4937 552 322 BBIL-AP BHARTI Airtel Ltd., IN 18403 4555 347 26 FPT-AS-AP FPT Telecom Company, VN 7552 4065 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3716 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 2903 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 14937 41294 5689 AMAZON-02 - Amazon.com, Inc., US 22773 4767 3115 355 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 3716 1305 75 SHAW - Shaw Communications, CA 396982 3336 4864 505 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 2629 2559 917 WINDSTREAM - Windstream Communications LL 30036 2612 358 449 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 7185 1711 149 UNI2-AS, ES 39891 4975 307 72 ALJAWWALSTC-AS, SA 9009 3836 353 2254 M247, RO 20940 3796 3389 110 AKAMAI-ASN1, NL 12389 3143 2321 871 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2765 202 2037 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 12766 3266 636 UNINET, MX 10620 3429 450 1105 Telmex Colombia S.A., CO 13999 2428 506 351 Mega Cable, S.A. de C.V., MX 11830 1936 369 65 Instituto Costarricense de Electricidad y 11664 1448 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 1237 520 41 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 555 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 14937 41294 5689 AMAZON-02 - Amazon.com, Inc., US 9808 13863 8761 121 CHINAMOBILE-CN China Mobile Communication 8151 12766 3266 636 UNINET, MX 12479 7185 1711 149 UNI2-AS, ES 7545 5884 826 483 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4975 307 72 ALJAWWALSTC-AS, SA 9498 4937 552 322 BBIL-AP BHARTI Airtel Ltd., IN 22773 4767 3115 355 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4653 309 1047 CABLEONE - CABLE ONE, INC., US 18403 4555 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 12766 12130 UNINET, MX 12479 7185 7036 UNI2-AS, ES 7545 5884 5401 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4975 4903 ALJAWWALSTC-AS, SA 9498 4937 4615 BBIL-AP BHARTI Airtel Ltd., IN 18403 4555 4529 FPT-AS-AP FPT Telecom Company, VN 22773 4767 4412 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 /15:2097 /16:13577 /17:8250 /18:13279 /19:25403 /20:45703 /21:52365 /22:113495 /23:107646 /24:659790 /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 6972 12766 UNINET, MX 12479 6125 7185 UNI2-AS, ES 39891 3660 4975 ALJAWWALSTC-AS, SA 11492 3517 4653 CABLEONE - CABLE ONE, INC., US 6327 3497 3716 SHAW - Shaw Communications, CA 22773 3055 4767 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2825 3870 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2678 14937 AMAZON-02 - Amazon.com, Inc., US 30036 2266 2612 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 2:2008 3:1006 4:5 5:5174 6:200 7:6 8:1491 9:43 11:172 12:1182 13:717 14:2707 15:462 16:208 17:441 18:922 20:589 21:4 22:188 23:8246 24:2781 25:2 27:2803 28:1 29:19 31:3497 32:36 34:90 35:284 36:4759 37:4436 38:9674 39:1295 40:440 41:4578 42:2170 43:3155 44:451 45:19851 46:4868 47:439 48:127 49:2347 50:2015 51:678 52:1319 54:280 55:1121 56:11 57:322 58:2361 59:1384 60:1175 61:3178 62:3117 63:1685 64:6340 65:2140 66:6109 67:3265 68:1501 69:4216 70:1059 71:606 72:3176 74:3041 75:1500 76:595 77:2938 78:2017 79:1789 80:2345 81:2233 82:4141 83:1451 84:2140 85:3840 86:1090 87:2488 88:1334 89:4806 90:816 91:8459 92:2794 93:3018 94:4400 95:4730 96:1452 97:309 98:943 99:830 100:70 101:1626 102:4520 103:33042 104:5377 105:856 106:900 107:2880 108:1253 109:4244 110:2291 111:4128 112:3176 113:1976 114:2282 115:2307 116:2163 117:3490 118:3045 119:2084 120:2710 121:1542 122:2988 123:2283 124:1708 125:3033 126:126 128:1573 129:966 130:1643 131:2472 132:885 133:486 134:1670 135:605 136:1537 137:1354 138:3349 139:1612 140:1765 141:1737 142:2554 143:2111 144:1773 145:637 146:2185 147:2246 148:2809 149:3084 150:1376 151:2921 152:2559 153:1503 154:9882 155:2314 156:4982 157:2389 158:1578 159:2868 160:3836 161:1965 162:4053 163:2544 164:2436 165:2669 166:1282 167:2299 168:4014 169:871 170:5587 171:1137 172:4745 173:3461 174:882 175:1364 176:3872 177:4874 178:4390 179:2331 180:3187 181:4565 182:4027 183:2832 184:2009 185:21863 186:6074 187:5000 188:4592 189:4518 190:9815 191:1676 192:11449 193:9621 194:7893 195:5820 196:3347 197:3320 198:6104 199:6068 200:8110 201:6385 202:10662 203:10644 204:4754 205:3677 206:4460 207:3847 208:4373 209:5414 210:4732 211:2688 212:5090 213:4105 214:1047 215:47 216:7292 217:3592 218:1699 219:416 220:2192 221:1344 222:939 223:3443 End of report