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 02 May, 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: 1076810 Prefixes after maximum aggregation (per Origin AS): 401911 Deaggregation factor: 2.68 Unique aggregates announced (without unneeded subnets): 515524 Number of IPv4 prefixes with a valid ROA: 646424 Number of IPv4 prefixes with an invalid ROA: 29 Number of IPv4 prefixes with no ROA: 430357 Total ASes present in the Internet Routing Table: 78485 Prefixes per ASN: 13.72 Origin-only ASes present in the Internet Routing Table: 67140 Origin ASes announcing only one prefix: 27060 Transit ASes present in the Internet Routing Table: 11345 Transit-only ASes present in the Internet Routing Table: 601 Paths with bogon ASNs present in the IPv4 Routing Table: 52 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: 993 Number of instances of unregistered ASNs: 1023 Number of 32-bit ASNs allocated by the RIRs: 49605 Number of 32-bit ASNs visible in the Routing Table: 40529 Prefixes from 32-bit ASNs in the Routing Table: 236858 Number of bogon 32-bit ASNs visible in the Routing Table: 76 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 336 Number of addresses announced to Internet: 3109074306 Equivalent to 185 /8s, 80 /16s and 181 /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: 352219 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 295760 Total APNIC prefixes after maximum aggregation: 83609 APNIC Deaggregation factor: 3.54 Prefixes being announced from the APNIC address blocks: 282162 Unique aggregates announced from the APNIC address blocks: 107628 APNIC Region origin ASes present in the Internet Routing Table: 15211 APNIC Prefixes per ASN: 18.55 APNIC Region origin ASes announcing only one prefix: 4632 APNIC Region transit ASes present in the Internet Routing Table: 2068 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: 10751 Number of APNIC addresses announced to Internet: 752939072 Equivalent to 44 /8s, 224 /16s and 240 /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: 307064 Total ARIN prefixes after maximum aggregation: 136499 ARIN Deaggregation factor: 2.25 Prefixes being announced from the ARIN address blocks: 306057 Unique aggregates announced from the ARIN address blocks: 147472 ARIN Region origin ASes present in the Internet Routing Table: 19435 ARIN Prefixes per ASN: 15.75 ARIN Region origin ASes announcing only one prefix: 7114 ARIN Region transit ASes present in the Internet Routing Table: 1979 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: 5563 Number of ARIN addresses announced to Internet: 1348354050 Equivalent to 80 /8s, 94 /16s and 64 /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: 292841 Total RIPE prefixes after maximum aggregation: 143201 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 295944 Unique aggregates announced from the RIPE address blocks: 190855 RIPE Region origin ASes present in the Internet Routing Table: 29482 RIPE Prefixes per ASN: 10.04 RIPE Region origin ASes announcing only one prefix: 12187 RIPE Region transit ASes present in the Internet Routing Table: 4085 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: 13383 Number of RIPE addresses announced to Internet: 733333120 Equivalent to 43 /8s, 181 /16s and 198 /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: 138625 Total LACNIC prefixes after maximum aggregation: 30873 LACNIC Deaggregation factor: 4.49 Prefixes being announced from the LACNIC address blocks: 132995 Unique aggregates announced from the LACNIC address blocks: 50336 LACNIC Region origin ASes present in the Internet Routing Table: 11400 LACNIC Prefixes per ASN: 11.67 LACNIC Region origin ASes announcing only one prefix: 2451 LACNIC Region transit ASes present in the Internet Routing Table: 2607 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: 9437 Number of LACNIC addresses announced to Internet: 169979840 Equivalent to 10 /8s, 33 /16s and 175 /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: 41527 Total AfriNIC prefixes after maximum aggregation: 7128 AfriNIC Deaggregation factor: 5.83 Prefixes being announced from the AfriNIC address blocks: 59316 Unique aggregates announced from the AfriNIC address blocks: 18938 AfriNIC Region origin ASes present in the Internet Routing Table: 2031 AfriNIC Prefixes per ASN: 29.21 AfriNIC Region origin ASes announcing only one prefix: 676 AfriNIC Region transit ASes present in the Internet Routing Table: 394 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: 1395 Number of AfriNIC addresses announced to Internet: 104300800 Equivalent to 6 /8s, 55 /16s and 129 /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 14050 9122 159 CHINAMOBILE-CN China Mobile Communication 7545 5881 826 481 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4958 4192 74 ERX-CERNET-BKB China Education and Resear 9498 4934 551 321 BBIL-AP BHARTI Airtel Ltd., IN 18403 4545 347 26 FPT-AS-AP FPT Telecom Company, VN 45899 4456 1873 54 VNPT-AS-VN VNPT Corp, VN 7552 4057 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3679 1044 64 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3676 907 227 CMNET-JIANGSU-AP China Mobile communicati 17561 3490 219 569 LCS-AS-AP LARUS Limited, HK 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 14849 41290 5694 AMAZON-02 - Amazon.com, Inc., US 174 5111 8767 840 COGENT-174 - Cogent Communications, LLC, 22773 4774 3099 361 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 3727 1305 75 SHAW - Shaw Communications, CA 396982 3334 4864 503 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3138 54728 2389 DNIC-AS-00749 - United States Department 36352 2720 222 904 AS-COLOCROSSING - HostPapa, US 7029 2625 2543 921 WINDSTREAM - Windstream Communications LL 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 7171 1711 149 UNI2-AS, ES 39891 4943 305 72 ALJAWWALSTC-AS, SA 9009 3859 355 2267 M247, RO 20940 3818 3389 112 AKAMAI-ASN1, NL 12389 3175 2321 874 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2761 201 2036 CDNEXT, GB 34984 2451 365 579 TELLCOM-AS, TR 8452 1730 1852 17 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/Guam/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12845 3293 629 UNINET, MX 10620 3429 450 1105 Telmex Colombia S.A., CO 13999 2432 506 350 Mega Cable, S.A. de C.V., MX 11830 1936 369 65 Instituto Costarricense de Electricidad y 28573 1587 2431 268 Claro NXT Telecomunicacoes Ltda, BR 11664 1446 277 34 Techtel LMDS Comunicaciones Interactivas 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1229 379 23 INTEGRATEL PERU S.A.A., PE 28202 1083 52 9 MASTER SA, BR 22884 1071 70 363 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 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 2027 649 36 RAYA-AS, EG 36992 1859 1533 336 ETISALAT-MISR, EG 37457 1659 385 28 Telkom-Internet, ZA 20011 1289 191 315 NTT-DATA-Inc, ZA 24863 1270 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1225 520 41 Vodafone-, EG 37069 1116 1100 11 MOBINIL, EG 29571 1071 78 19 ORANGE-COTE-IVOIRE, CI 328608 573 53 155 Africa-on-Cloud-AS, 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 14849 41290 5694 AMAZON-02 - Amazon.com, Inc., US 9808 14050 9122 159 CHINAMOBILE-CN China Mobile Communication 8151 12845 3293 629 UNINET, MX 12479 7171 1711 149 UNI2-AS, ES 7545 5881 826 481 TPG-INTERNET-AP TPG Telecom Limited, AU 174 5111 8767 840 COGENT-174 - Cogent Communications, LLC, 4538 4958 4192 74 ERX-CERNET-BKB China Education and Resear 39891 4943 305 72 ALJAWWALSTC-AS, SA 9498 4934 551 321 BBIL-AP BHARTI Airtel Ltd., IN 22773 4774 3099 361 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 14050 13891 CHINAMOBILE-CN China Mobile Communications Grou 8151 12845 12216 UNINET, MX 12479 7171 7022 UNI2-AS, ES 7545 5881 5400 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4958 4884 ERX-CERNET-BKB China Education and Research Net 39891 4943 4871 ALJAWWALSTC-AS, SA 9498 4934 4613 BBIL-AP BHARTI Airtel Ltd., IN 18403 4545 4519 FPT-AS-AP FPT Telecom Company, VN 22773 4774 4413 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 45899 4456 4402 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 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 33491 COMCAST-33491 - Comcast 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 /13:585 /14:1192 /15:2108 /16:13757 /17:8530 /18:14041 /19:26426 /20:47723 /21:53881 /22:115547 /23:113208 /24:678620 /25:77 /26:85 /27:112 /28:41 /29:64 /30:9 /31:3 /32:339 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 7046 12845 UNINET, MX 12479 6112 7171 UNI2-AS, ES 39891 3628 4943 ALJAWWALSTC-AS, SA 11492 3517 4653 CABLEONE - CABLE ONE, INC., US 6327 3507 3727 SHAW - Shaw Communications, CA 22773 3055 4774 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2825 3870 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2673 14849 AMAZON-02 - Amazon.com, Inc., US 30036 2275 2621 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) ---------------------------------------------- 1:2559 2:2014 3:1010 4:7 5:5207 6:198 7:6 8:1523 9:43 11:172 12:1183 13:700 14:2774 15:463 16:208 17:444 18:921 20:629 21:4 22:188 23:8217 24:2779 25:2 27:2879 28:1 29:19 31:3557 32:40 34:91 35:288 36:4768 37:4481 38:11337 39:1297 40:438 41:4711 42:2220 43:3245 44:452 45:20733 46:4961 47:434 48:127 49:2277 50:2015 51:700 52:1328 54:290 55:1199 56:11 57:328 58:2584 59:1623 60:1184 61:3394 62:3186 63:1710 64:6389 65:2139 66:6132 67:3267 68:1500 69:4209 70:1051 71:616 72:3180 74:3061 75:1501 76:588 77:2924 78:2008 79:1815 80:2389 81:2277 82:4168 83:1456 84:2149 85:3845 86:1092 87:2650 88:1340 89:4834 90:812 91:8559 92:2820 93:3034 94:4508 95:4761 96:1451 97:316 98:946 99:830 100:70 101:1640 102:5241 103:32763 104:5383 105:2332 106:922 107:2882 108:1257 109:4321 110:2304 111:4201 112:3209 113:2107 114:2313 115:2364 116:2210 117:3529 118:3108 119:2175 120:2772 121:1635 122:3039 123:2473 124:1850 125:3051 126:126 128:1604 129:1017 130:1674 131:2581 132:889 133:486 134:1675 135:607 136:1545 137:1369 138:3591 139:1663 140:1783 141:1745 142:2549 143:2154 144:1783 145:637 146:2200 147:2254 148:2797 149:3262 150:1387 151:2914 152:2337 153:1574 154:10542 155:2324 156:4982 157:2348 158:1575 159:2866 160:3911 161:1968 162:4057 163:2574 164:2444 165:2705 166:1283 167:2329 168:4203 169:901 170:5820 171:1157 172:4751 173:3466 174:880 175:1400 176:3962 177:5744 178:4407 179:2609 180:3166 181:4720 182:4046 183:2856 184:2010 185:22063 186:6549 187:5480 188:4590 189:4722 190:10068 191:2088 192:11558 193:9673 194:8019 195:6019 196:3646 197:3902 198:6166 199:6075 200:8460 201:6568 202:11197 203:10932 204:4789 205:3708 206:4711 207:3890 208:4409 209:5459 210:5240 211:2939 212:5140 213:4137 214:1044 215:47 216:7306 217:3626 218:2007 219:652 220:2330 221:1340 222:1443 223:3492 End of report