IPv4 R&E Routing Table Report 23:05 GMT Fri 31 Mar, 2023 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: 909579 Prefixes after maximum aggregation (per Origin AS): 346025 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 447455 Number of IPv4 prefixes with a valid ROA: 381785 Number of IPv4 prefixes with an invalid ROA: 1699 Number of IPv4 prefixes with no ROA: 526095 Total ASes present in the Internet Routing Table: 74076 Prefixes per ASN: 12.28 Origin-only ASes present in the Internet Routing Table: 63606 Origin ASes announcing only one prefix: 26154 Transit ASes present in the Internet Routing Table: 10470 Transit-only ASes present in the Internet Routing Table: 442 Paths with bogon ASNs present in the IPv4 Routing Table: 54 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 66 Max AS path prepend of ASN ( 37447) 64 Prefixes from unregistered ASNs in the Routing Table: 1126 Number of instances of unregistered ASNs: 1126 Number of 32-bit ASNs allocated by the RIRs: 41570 Number of 32-bit ASNs visible in the Routing Table: 34343 Prefixes from 32-bit ASNs in the Routing Table: 168498 Number of bogon 32-bit ASNs visible in the Routing Table: 56 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 487 Number of addresses announced to Internet: 3061149696 Equivalent to 182 /8s, 117 /16s and 112 /24s Percentage of available address space announced: 82.7 Percentage of allocated address space announced: 82.7 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: 305906 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 236077 Total APNIC prefixes after maximum aggregation: 68315 APNIC Deaggregation factor: 3.46 Prefixes being announced from the APNIC address blocks: 230802 Unique aggregates announced from the APNIC address blocks: 97982 APNIC Region origin ASes present in the Internet Routing Table: 13292 APNIC Prefixes per ASN: 17.36 APNIC Region origin ASes announcing only one prefix: 3906 APNIC Region transit ASes present in the Internet Routing Table: 1790 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 39 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8641 Number of APNIC addresses announced to Internet: 773191680 Equivalent to 46 /8s, 21 /16s and 248 /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, 131072-151865 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: 267141 Total ARIN prefixes after maximum aggregation: 121280 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 269505 Unique aggregates announced from the ARIN address blocks: 130367 ARIN Region origin ASes present in the Internet Routing Table: 19011 ARIN Prefixes per ASN: 14.18 ARIN Region origin ASes announcing only one prefix: 6971 ARIN Region transit ASes present in the Internet Routing Table: 1890 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: 4752 Number of ARIN addresses announced to Internet: 1285223168 Equivalent to 76 /8s, 154 /16s and 243 /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, 393216-401308 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, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 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: 258645 Total RIPE prefixes after maximum aggregation: 121745 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 254645 Unique aggregates announced from the RIPE address blocks: 157407 RIPE Region origin ASes present in the Internet Routing Table: 28250 RIPE Prefixes per ASN: 9.01 RIPE Region origin ASes announcing only one prefix: 12022 RIPE Region transit ASes present in the Internet Routing Table: 3984 Average RIPE Region AS path length visible: 4.7 Max RIPE Region AS path length visible: 32 Number of RIPE region 32-bit ASNs visible in the Routing Table: 11099 Number of RIPE addresses announced to Internet: 717950464 Equivalent to 42 /8s, 203 /16s and 14 /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 196608-213403 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 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: 117342 Total LACNIC prefixes after maximum aggregation: 28159 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 116700 Unique aggregates announced from the LACNIC address blocks: 49089 LACNIC Region origin ASes present in the Internet Routing Table: 10966 LACNIC Prefixes per ASN: 10.64 LACNIC Region origin ASes announcing only one prefix: 2651 LACNIC Region transit ASes present in the Internet Routing Table: 2269 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 49 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8769 Number of LACNIC addresses announced to Internet: 176632832 Equivalent to 10 /8s, 135 /16s and 52 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-273820 + 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: 29248 Total AfriNIC prefixes after maximum aggregation: 5757 AfriNIC Deaggregation factor: 5.08 Prefixes being announced from the AfriNIC address blocks: 37440 Unique aggregates announced from the AfriNIC address blocks: 12217 AfriNIC Region origin ASes present in the Internet Routing Table: 1732 AfriNIC Prefixes per ASN: 21.62 AfriNIC Region origin ASes announcing only one prefix: 604 AfriNIC Region transit ASes present in the Internet Routing Table: 335 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 66 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1082 Number of AfriNIC addresses announced to Internet: 107787008 Equivalent to 6 /8s, 108 /16s and 179 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 45/8, 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 9496 8883 48 CHINAMOBILE-CN China Mobile Communicati 7545 5755 786 688 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3680 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3545 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3381 1872 94 VNPT-AS-VN VNPT Corp, VN 9498 2903 491 237 BBIL-AP BHARTI Airtel Ltd., IN 24560 2363 836 440 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2308 11250 588 KIXS-AS-KR Korea Telecom, KR 4755 2170 439 213 TATACOMM-AS TATA Communications formerl 45090 2148 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute 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 8186 10774 2877 AMAZON-02, US 11492 4537 300 622 CABLEONE, US 7155 3963 279 46 VIASAT-SP-BACKBONE, US 22773 3612 3061 287 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3514 1320 64 SHAW, CA 16625 3148 1579 2332 AKAMAI-AS, US 749 3035 50518 2302 DNIC-AS-00749, US 396982 2626 3588 360 GOOGLE-CLOUD-PLATFORM, US 7018 2573 24118 1581 ATT-INTERNET4, US 30036 2500 360 503 MEDIACOM-ENTERPRISE-BUSINESS, 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 7261 1705 149 UNI2-AS, ES 39891 4833 286 59 ALJAWWALSTC-AS, SA 20940 4054 3399 163 AKAMAI-ASN1, NL 8551 3888 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2896 2292 911 ROSTELECOM-AS, RU 9009 2673 252 1390 M247, RO 34984 2268 359 609 TELLCOM-AS, TR 6849 2135 307 18 UKRTELNET, UA 58224 1850 950 543 TCI, IR 13188 1606 100 34 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 11212 3344 582 Uninet S.A. de C.V., MX 10620 3499 506 850 Telmex Colombia S.A., CO 13999 2306 368 607 Mega Cable, S.A. de C.V., MX 11830 2265 369 64 Instituto Costarricense de Electricidad 28573 1331 2325 235 Claro NXT Telecomunicacoes Ltda, BR 3816 1303 767 159 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6503 1298 339 514 Axtel, S.A.B. de C.V., MX 6147 1131 370 22 Telefonica del Peru S.A.A., PE 11664 1100 180 452 Techtel LMDS Comunicaciones Interactiva 26615 1030 2498 45 TIM SA, 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 24863 1524 393 19 LINKdotNET-AS, EG 24835 1493 465 27 RAYA-AS, EG 36992 1341 1518 275 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1018 67 48 ORANGE-COTE-IVOIRE, CI 36935 722 518 29 Vodafone-, EG 6713 551 1861 34 IAM-AS, MA 15399 531 54 47 WANANCHI-, KE 37342 493 32 1 MOVITEL, MZ 24757 488 73 5 EthioNet-AS, ET 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 8151 11212 3344 582 Uninet S.A. de C.V., MX 9808 9496 8883 48 CHINAMOBILE-CN China Mobile Communicati 16509 8186 10774 2877 AMAZON-02, US 12479 7261 1705 149 UNI2-AS, ES 7545 5755 786 688 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 286 59 ALJAWWALSTC-AS, SA 11492 4537 300 622 CABLEONE, US 20940 4054 3399 163 AKAMAI-ASN1, NL 7155 3963 279 46 VIASAT-SP-BACKBONE, US 8551 3888 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 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 9496 9448 CHINAMOBILE-CN China Mobile Communications Grou 12479 7261 7112 UNI2-AS, ES 16509 8186 5309 AMAZON-02, US 7545 5755 5067 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4774 ALJAWWALSTC-AS, SA 7155 3963 3917 VIASAT-SP-BACKBONE, US 11492 4537 3915 CABLEONE, US 20940 4054 3891 AKAMAI-ASN1, NL 8551 3888 3851 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7552 3680 3659 VIETEL-AS-AP Viettel Group, VN 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 3507 UNALLOCATED 5.105.166.0/24 213035 AS-SERVERION Serverion B.V., 33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US 393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US 18798 UNALLOCATED 8.40.106.0/24 6461 ZAYO-6461, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.131.185.0/24 Origin: 174 COGENT-174, US 23.131.185.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.186.0/24 Origin: 174 COGENT-174, US 23.131.186.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.187.0/24 Origin: 174 COGENT-174, US 23.131.187.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.188.0/24 Origin: 174 COGENT-174, US 23.131.188.0/24 Transit: 2914 NTT-LTD-2914, US 23.136.112.0/24 Origin: 54835 UNASSIGNED 23.136.112.0/24 Transit: 21559 OSNET, PR 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 /9:13 /10:38 /11:103 /12:299 /13:575 /14:1196 /15:2071 /16:13422 /17:8180 /18:13711 /19:24844 /20:43052 /21:51072 /22:108770 /23:97191 /24:545017 /25:0 /26:1 /27:1 /28:0 /29:1 /30:6 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 6321 7261 UNI2-AS, ES 8151 5170 11212 Uninet S.A. de C.V., MX 39891 3632 4833 ALJAWWALSTC-AS, SA 11492 3445 4537 CABLEONE, US 8551 3360 3888 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3323 3514 SHAW, CA 7155 3038 3963 VIASAT-SP-BACKBONE, US 22773 2677 3612 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2157 2500 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2053 3499 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) ---------------------------------------------- 1:1673 2:1223 3:170 4:5 5:4486 6:121 7:6 8:1514 9:1 11:172 12:1575 13:391 14:2305 15:296 16:137 17:371 18:414 20:248 21:4 22:188 23:6144 24:2564 25:6 27:2497 29:19 31:2514 32:94 34:10 35:104 36:1926 37:4660 38:4372 39:805 40:151 41:3977 42:974 43:2312 44:310 45:16485 46:4225 47:368 49:1732 50:1823 51:564 52:1594 54:389 55:760 56:8 57:90 58:1681 59:1067 60:978 61:2471 62:2631 63:1931 64:5666 65:2311 66:4907 67:3013 68:1372 69:4139 70:1249 71:671 72:2969 74:2590 75:1462 76:609 77:2420 78:1847 79:3165 80:2097 81:1737 82:1480 83:1272 84:1511 85:3004 86:754 87:1984 88:1236 89:3623 90:617 91:7674 92:2042 93:2571 94:3598 95:3993 96:1328 97:336 98:1158 99:746 100:72 101:1299 102:2669 103:31108 104:4600 105:476 106:898 107:2553 108:1003 109:4393 110:2079 111:3187 112:2052 113:1500 114:1626 115:2018 116:1900 117:2564 118:2286 119:1968 120:1747 121:1045 122:2595 123:2134 124:1575 125:2485 128:1256 129:1056 130:994 131:1970 132:833 133:423 134:1899 135:301 136:872 137:939 138:2560 139:1539 140:1217 141:1453 142:1431 143:1490 144:1157 145:358 146:1922 147:1563 148:2313 149:1956 150:870 151:1153 152:1954 153:488 154:4262 155:1416 156:1699 157:1302 158:1043 159:2269 160:2544 161:1515 162:3525 163:1495 164:1589 165:1720 166:905 167:1732 168:3858 169:928 170:4613 171:876 172:3537 173:2937 174:1015 175:1157 176:3666 177:4600 178:3636 179:2155 180:2439 181:3423 182:3328 183:1932 184:2351 185:20136 186:4672 187:3936 188:4076 189:3550 190:9139 191:1434 192:10896 193:8829 194:7299 195:5146 196:3163 197:2411 198:5893 199:6070 200:7755 201:5854 202:10336 203:10176 204:4614 205:3530 206:3889 207:3387 208:4073 209:4862 210:4177 211:2403 212:4106 213:3525 214:1083 215:60 216:6608 217:2683 218:1270 219:411 220:1761 221:974 222:727 223:2150 End of report