This is an automated weekly mailing describing the state of the IPv4 Research & Education Routing Table received by NSRC's collector from Guam's network. Daily listings are sent to ren-bgp-stats-all@lists.nsrc.org. For historical data, please see https://bgp.nsrc.org. If you have any comments please contact Philip Smith . IPv4 R&E Routing Table Report 21:25 GMT Sat 18 Apr, 2026 IPv4 BGP Table (Global) as seen at Guam. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Guam/ Analysis Summary ---------------- BGP routing table entries examined: 1074455 Prefixes after maximum aggregation (per Origin AS): 401208 Deaggregation factor: 2.68 Unique aggregates announced (without unneeded subnets): 514429 Number of IPv4 prefixes with a valid ROA: 648950 Number of IPv4 prefixes with an invalid ROA: 643 Number of IPv4 prefixes with no ROA: 424862 Total ASes present in the Internet Routing Table: 78467 Prefixes per ASN: 13.69 Origin-only ASes present in the Internet Routing Table: 67157 Origin ASes announcing only one prefix: 27026 Transit ASes present in the Internet Routing Table: 11310 Transit-only ASes present in the Internet Routing Table: 584 Paths with bogon ASNs present in the IPv4 Routing Table: 68 Average AS path length visible in the Internet Routing Table: 5.5 Max AS path length visible: 215 Max AS path prepend of ASN (205624) 210 Prefixes from unregistered ASNs in the Routing Table: 1121 Number of instances of unregistered ASNs: 1154 Number of 32-bit ASNs allocated by the RIRs: 49372 Number of 32-bit ASNs visible in the Routing Table: 40459 Prefixes from 32-bit ASNs in the Routing Table: 236376 Number of bogon 32-bit ASNs visible in the Routing Table: 84 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 534 Number of addresses announced to Internet: 3109309058 Equivalent to 185 /8s, 84 /16s and 74 /24s Percentage of available address space announced: 84.0 Percentage of allocated address space announced: 84.0 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: 351287 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 295554 Total APNIC prefixes after maximum aggregation: 83658 APNIC Deaggregation factor: 3.53 Prefixes being announced from the APNIC address blocks: 282485 Unique aggregates announced from the APNIC address blocks: 107724 APNIC Region origin ASes present in the Internet Routing Table: 15243 APNIC Prefixes per ASN: 18.53 APNIC Region origin ASes announcing only one prefix: 4668 APNIC Region transit ASes present in the Internet Routing Table: 2058 Average APNIC Region AS path length visible: 5.5 Max APNIC Region AS path length visible: 44 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10774 Number of APNIC addresses announced to Internet: 754336832 Equivalent to 44 /8s, 246 /16s and 68 /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: 306441 Total ARIN prefixes after maximum aggregation: 136094 ARIN Deaggregation factor: 2.25 Prefixes being announced from the ARIN address blocks: 305626 Unique aggregates announced from the ARIN address blocks: 147180 ARIN Region origin ASes present in the Internet Routing Table: 19429 ARIN Prefixes per ASN: 15.73 ARIN Region origin ASes announcing only one prefix: 7112 ARIN Region transit ASes present in the Internet Routing Table: 1986 Average ARIN Region AS path length visible: 4.9 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5553 Number of ARIN addresses announced to Internet: 1347974402 Equivalent to 80 /8s, 88 /16s and 117 /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: 291379 Total RIPE prefixes after maximum aggregation: 142788 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 294091 Unique aggregates announced from the RIPE address blocks: 189748 RIPE Region origin ASes present in the Internet Routing Table: 29442 RIPE Prefixes per ASN: 9.99 RIPE Region origin ASes announcing only one prefix: 12170 RIPE Region transit ASes present in the Internet Routing Table: 4072 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 215 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13315 Number of RIPE addresses announced to Internet: 733629056 Equivalent to 43 /8s, 186 /16s and 74 /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: 138561 Total LACNIC prefixes after maximum aggregation: 30847 LACNIC Deaggregation factor: 4.49 Prefixes being announced from the LACNIC address blocks: 133269 Unique aggregates announced from the LACNIC address blocks: 50307 LACNIC Region origin ASes present in the Internet Routing Table: 11374 LACNIC Prefixes per ASN: 11.72 LACNIC Region origin ASes announcing only one prefix: 2399 LACNIC Region transit ASes present in the Internet Routing Table: 2596 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 69 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9423 Number of LACNIC addresses announced to Internet: 169786304 Equivalent to 10 /8s, 30 /16s and 187 /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: 41399 Total AfriNIC prefixes after maximum aggregation: 7169 AfriNIC Deaggregation factor: 5.77 Prefixes being announced from the AfriNIC address blocks: 58450 Unique aggregates announced from the AfriNIC address blocks: 19065 AfriNIC Region origin ASes present in the Internet Routing Table: 2032 AfriNIC Prefixes per ASN: 28.76 AfriNIC Region origin ASes announcing only one prefix: 677 AfriNIC Region transit ASes present in the Internet Routing Table: 395 Average AfriNIC Region AS path length visible: 6.2 Max AfriNIC Region AS path length visible: 63 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1394 Number of AfriNIC addresses announced to Internet: 103355648 Equivalent to 6 /8s, 41 /16s and 21 /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 14024 9122 159 CHINAMOBILE-CN China Mobile Communication 7545 5906 827 490 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4973 4192 76 ERX-CERNET-BKB China Education and Resear 9498 4924 551 332 BBIL-AP BHARTI Airtel Ltd., IN 18403 4565 347 26 FPT-AS-AP FPT Telecom Company, VN 45899 4449 1873 54 VNPT-AS-VN VNPT Corp, VN 7552 4056 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3707 1044 64 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3628 907 226 CMNET-JIANGSU-AP China Mobile communicati 24560 2997 847 553 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14740 41277 5675 AMAZON-02 - Amazon.com, Inc., US 174 5033 8763 815 COGENT-174 - Cogent Communications, LLC, 22773 4773 3116 363 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4670 310 1039 CABLEONE - CABLE ONE, INC., US 7155 3870 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3723 1305 75 SHAW - Shaw Communications, CA 396982 3322 4859 497 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3139 54728 2390 DNIC-AS-00749 - United States Department 36352 2749 224 918 AS-COLOCROSSING - HostPapa, US 30036 2674 367 312 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom C Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7174 1711 149 UNI2-AS, ES 39891 4943 305 72 ALJAWWALSTC-AS, SA 20940 3861 3389 112 AKAMAI-ASN1, NL 9009 3832 354 2256 M247, RO 12389 3181 2320 874 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2745 199 2025 CDNEXT, GB 34984 2451 365 575 TELLCOM-AS, TR 8452 1716 1852 17 TE-AS TE-AS, EG 203020 1666 252 832 HOSTROYALE, IN 13188 1607 100 27 TRIOLAN, UA Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12838 3309 619 UNINET, MX 10620 3429 450 1105 Telmex Colombia S.A., CO 13999 2436 506 346 Mega Cable, S.A. de C.V., MX 11830 1937 369 65 Instituto Costarricense de Electricidad y 28573 1585 2431 268 Claro NXT Telecomunicacoes Ltda, BR 11664 1437 277 34 Techtel LMDS Comunicaciones Interactivas 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1246 371 22 INTEGRATEL PERU S.A.A., PE 28202 1082 52 9 MASTER SA, BR 26615 1073 2392 100 TIM SA, BR Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 2025 648 34 RAYA-AS, EG 36992 1859 1533 336 ETISALAT-MISR, EG 37457 1659 385 28 Telkom-Internet, ZA 20011 1342 206 352 NTT-DATA-Inc, ZA 24863 1282 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1223 520 41 Vodafone-, EG 37069 1112 1100 11 MOBINIL, EG 29571 1071 78 19 ORANGE-COTE-IVOIRE, CI 3741 554 724 321 NTT-DATA-Inc, ZA Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14740 41277 5675 AMAZON-02 - Amazon.com, Inc., US 9808 14024 9122 159 CHINAMOBILE-CN China Mobile Communication 8151 12838 3309 619 UNINET, MX 12479 7174 1711 149 UNI2-AS, ES 7545 5906 827 490 TPG-INTERNET-AP TPG Telecom Limited, AU 174 5033 8763 815 COGENT-174 - Cogent Communications, LLC, 4538 4973 4192 76 ERX-CERNET-BKB China Education and Resear 39891 4943 305 72 ALJAWWALSTC-AS, SA 9498 4924 551 332 BBIL-AP BHARTI Airtel Ltd., IN 22773 4773 3116 363 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 14024 13865 CHINAMOBILE-CN China Mobile Communications Grou 8151 12838 12219 UNINET, MX 12479 7174 7025 UNI2-AS, ES 7545 5906 5416 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4973 4897 ERX-CERNET-BKB China Education and Research Net 39891 4943 4871 ALJAWWALSTC-AS, SA 9498 4924 4592 BBIL-AP BHARTI Airtel Ltd., IN 18403 4565 4539 FPT-AS-AP FPT Telecom Company, VN 22773 4773 4410 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 45899 4449 4395 VNPT-AS-VN VNPT Corp, VN Complete listing at https://bgp.nsrc.org/REN/Guam/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 198767 UNALLOCATED 5.175.194.0/24 212895 ROUTE64_ORG, DE 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 Complete listing at https://bgp.nsrc.org/REN/Guam/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/Guam/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: 174 COGENT-174 - Cogent Communications, LLC, 23.137.200.0/24 Origin: 16276 OVH, FR 23.137.200.0/24 Transit: 3605 ERX-KUENTOS-AS Guam Cablevision, LLC., G 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/Guam/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 /12:298 /13:586 /14:1193 /15:2110 /16:13739 /17:8520 /18:14026 /19:26428 /20:47759 /21:53864 /22:115669 /23:113393 /24:675971 /25:75 /26:89 /27:113 /28:41 /29:64 /30:9 /31:4 /32:340 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 7026 12838 UNINET, MX 12479 6115 7174 UNI2-AS, ES 39891 3628 4943 ALJAWWALSTC-AS, SA 11492 3531 4670 CABLEONE - CABLE ONE, INC., US 6327 3505 3723 SHAW - Shaw Communications, CA 22773 3052 4773 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2824 3870 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2649 14740 AMAZON-02 - Amazon.com, Inc., US 30036 2326 2674 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2233 3429 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Guam/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2568 2:1867 3:1012 4:7 5:5216 6:193 7:6 8:1522 9:39 11:172 12:1188 13:693 14:2762 15:459 16:195 17:428 18:917 20:625 21:4 22:188 23:8221 24:2777 25:2 27:2887 28:1 29:19 31:3536 32:40 34:91 35:287 36:4729 37:4479 38:11356 39:1288 40:417 41:4708 42:2231 43:3192 44:449 45:20773 46:4985 47:432 48:125 49:2275 50:2025 51:656 52:1315 54:285 55:1114 56:11 57:332 58:2582 59:1627 60:1183 61:3395 62:3187 63:1730 64:6345 65:2134 66:6096 67:3263 68:1503 69:4205 70:1051 71:621 72:3207 74:3039 75:1501 76:588 77:2959 78:1986 79:1816 80:2383 81:2274 82:4100 83:1452 84:2150 85:3828 86:1094 87:2538 88:1348 89:4782 90:803 91:8529 92:2820 93:3027 94:4461 95:4707 96:1456 97:314 98:941 99:813 100:70 101:1660 102:5220 103:32998 104:5368 105:2330 106:933 107:2892 108:1257 109:4329 110:2308 111:4188 112:3197 113:2096 114:2300 115:2348 116:2218 117:3548 118:3024 119:2214 120:2764 121:1638 122:3040 123:2463 124:1852 125:3062 126:126 128:1619 129:1021 130:1660 131:2591 132:850 133:486 134:1677 135:614 136:1579 137:1368 138:3576 139:1674 140:1774 141:1737 142:2542 143:2164 144:1771 145:645 146:2217 147:2236 148:2782 149:3209 150:1380 151:2846 152:2331 153:1424 154:10191 155:2313 156:4607 157:2333 158:1541 159:2863 160:3878 161:1964 162:4051 163:2526 164:2083 165:2686 166:1276 167:2329 168:4228 169:889 170:5849 171:1151 172:4652 173:3491 174:882 175:1402 176:3951 177:5802 178:4379 179:2669 180:3173 181:4705 182:4047 183:2857 184:2040 185:22025 186:6297 187:5496 188:4623 189:4706 190:10062 191:1979 192:11546 193:9679 194:8018 195:6020 196:3663 197:3922 198:6162 199:6064 200:8457 201:6579 202:11268 203:10950 204:4773 205:3687 206:4613 207:3877 208:4405 209:5432 210:5238 211:2932 212:5150 213:4158 214:1043 215:47 216:7306 217:3595 218:2006 219:652 220:2337 221:1332 222:1434 223:3477 End of report