Routing Table Report 00:00 GMT Mon 20 Dec, 2010
NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/rviews/
Analysis Summary
----------------
BGP routing table entries examined: 343231
Prefixes after maximum aggregation: 154634
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 166668
Total ASes present in the Internet Routing Table: 35524
Prefixes per ASN: 9.66
Origin-only ASes present in the Internet Routing Table: 30555
Origin ASes announcing only one prefix: 14885
Transit ASes present in the Internet Routing Table: 4969
Transit-only ASes present in the Internet Routing Table: 127
Average AS path length visible in the Internet Routing Table: 4.1
Max AS path length visible: 35
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 397
Unregistered ASNs in the Routing Table: 150
Number of 32-bit ASNs allocated by the RIRs: 965
Prefixes from 32-bit ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 73
Prefixes being announced from unallocated address space: 194
Number of addresses announced to Internet: 2342788811
Equivalent to 139 /8s, 164 /16s and 30 /24s
Percentage of available address space announced: 63.2
Percentage of allocated address space announced: 65.3
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 86.8
Total number of prefixes smaller than registry allocations: 141121
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 82037
Total APNIC prefixes after maximum aggregation: 27625
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 79071
Unique aggregates announced from the APNIC address blocks: 35052
APNIC Region origin ASes present in the Internet Routing Table: 4262
APNIC Prefixes per ASN: 18.55
APNIC Region origin ASes announcing only one prefix: 1222
APNIC Region transit ASes present in the Internet Routing Table: 685
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 35
Number of APNIC addresses announced to Internet: 575452354
Equivalent to 34 /8s, 76 /16s and 180 /24s
Percentage of available APNIC address space announced: 78.0
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
55296-56319, 131072-132095
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 42/8, 43/8, 49/8,
58/8, 59/8, 60/8, 61/8, 101/8, 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, 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: 139913
Total ARIN prefixes after maximum aggregation: 72112
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 110747
Unique aggregates announced from the ARIN address blocks: 43859
ARIN Region origin ASes present in the Internet Routing Table: 14097
ARIN Prefixes per ASN: 7.86
ARIN Region origin ASes announcing only one prefix: 5384
ARIN Region transit ASes present in the Internet Routing Table: 1492
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 25
Number of ARIN addresses announced to Internet: 744993673
Equivalent to 44 /8s, 103 /16s and 179 /24s
Percentage of available ARIN address space announced: 62.5
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, 393216-394239
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, 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,
107/8, 108/8, 173/8, 174/8, 184/8, 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: 82295
Total RIPE prefixes after maximum aggregation: 45715
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 75001
Unique aggregates announced from the RIPE address blocks: 47127
RIPE Region origin ASes present in the Internet Routing Table: 15141
RIPE Prefixes per ASN: 4.95
RIPE Region origin ASes announcing only one prefix: 7703
RIPE Region transit ASes present in the Internet Routing Table: 2375
Average RIPE Region AS path length visible: 4.4
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 452043221
Equivalent to 26 /8s, 241 /16s and 161 /24s
Percentage of available RIPE address space announced: 74.8
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, 196608-197631
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,
176/8, 178/8, 193/8, 194/8, 195/8, 212/8, 213/8,
217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 31088
Total LACNIC prefixes after maximum aggregation: 7113
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 29825
Unique aggregates announced from the LACNIC address blocks: 15441
LACNIC Region origin ASes present in the Internet Routing Table: 1407
LACNIC Prefixes per ASN: 21.20
LACNIC Region origin ASes announcing only one prefix: 439
LACNIC Region transit ASes present in the Internet Routing Table: 249
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 78631692
Equivalent to 4 /8s, 175 /16s and 211 /24s
Percentage of available LACNIC address space announced: 58.6
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 181/8, 186/8, 187/8, 189/8, 190/8, 200/8,
201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 7630
Total AfriNIC prefixes after maximum aggregation: 1949
AfriNIC Deaggregation factor: 3.91
Prefixes being announced from the AfriNIC address blocks: 5923
Unique aggregates announced from the AfriNIC address blocks: 1782
AfriNIC Region origin ASes present in the Internet Routing Table: 428
AfriNIC Prefixes per ASN: 13.84
AfriNIC Region origin ASes announcing only one prefix: 137
AfriNIC Region transit ASes present in the Internet Routing Table: 95
Average AfriNIC Region AS path length visible: 4.2
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 21622528
Equivalent to 1 /8s, 73 /16s and 239 /24s
Percentage of available AfriNIC address space announced: 43.0
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1731 9486 522 Korea Telecom (KIX)
7545 1542 298 76 TPG Internet Pty Ltd
4755 1405 650 137 Videsh Sanchar Nigam Ltd. Aut
17974 1334 459 28 PT TELEKOMUNIKASI INDONESIA
24560 1045 313 177 Bharti Airtel Ltd.
9583 1039 75 488 Sify Limited
17488 969 157 111 Hathway IP Over Cable Interne
4808 946 1641 259 CNCGROUP IP network: China169
18101 905 116 136 Reliance Infocom Ltd Internet
9829 824 696 31 BSNL National Internet Backbo
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3732 3872 270 bellsouth.net, inc.
4323 2632 1091 396 Time Warner Telecom
19262 1837 4873 284 Verizon Global Networks
1785 1789 697 133 AppliedTheory Corporation
20115 1557 1534 638 Charter Communications
6478 1437 290 52 AT&T Worldnet Services
7018 1368 5678 882 AT&T WorldNet Services
2386 1305 570 929 AT&T Data Communications Serv
11492 1271 233 75 Cable One
22773 1257 2864 75 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
286 953 711 151 KPNQwest Backbone AS
9116 542 328 33 Goldenlines main autonomous s
3292 503 2010 386 TDC Tele Danmark
6830 503 1763 309 UPC Distribution Services
34984 440 96 133 Tellcom Iletisim Hizmetleri
8866 439 133 23 Bulgarian Telecommunication C
9121 438 1690 29 TTnet Autonomous System
9198 417 202 13 Kazakhtelecom Corporate Sales
8551 405 355 39 Bezeq International
702 401 1867 315 UUNET - Commercial IP service
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1352 2593 365 Uninet S.A. de C.V.
10620 1343 250 154 TVCABLE BOGOTA
28573 1223 932 79 Types of queries are: POCs, o
6503 1187 355 80 AVANTEL, S.A.
7303 832 441 109 Telecom Argentina Stet-France
14420 583 49 87 Types of queries are: POCs, o
22047 565 310 15 Types of queries are: POCs, o
3816 494 216 101 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 452 32 30 Telefonica del Sur S.A.
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 1023 445 10 TEDATA
24863 746 147 39 LINKdotNET AS number
36992 660 283 154 Etisalat MISR
3741 263 986 225 The Internet Solution
24835 218 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
29571 199 19 11 Ci Telecom Autonomous system
2018 196 277 64 TENET-1
33776 184 12 14 Starcomms Nigeria Limited
16637 164 440 89 Johnnic e-Ventures
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3732 3872 270 bellsouth.net, inc.
4323 2632 1091 396 Time Warner Telecom
19262 1837 4873 284 Verizon Global Networks
1785 1789 697 133 AppliedTheory Corporation
4766 1731 9486 522 Korea Telecom (KIX)
20115 1557 1534 638 Charter Communications
7545 1542 298 76 TPG Internet Pty Ltd
6478 1437 290 52 AT&T Worldnet Services
4755 1405 650 137 Videsh Sanchar Nigam Ltd. Aut
7018 1368 5678 882 AT&T WorldNet Services
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 2632 2236 Time Warner Telecom
1785 1789 1656 AppliedTheory Corporation
19262 1837 1553 Verizon Global Networks
7545 1542 1466 TPG Internet Pty Ltd
6478 1437 1385 AT&T Worldnet Services
17974 1334 1306 PT TELEKOMUNIKASI INDONESIA
4755 1405 1268 Videsh Sanchar Nigam Ltd. Aut
4766 1731 1209 Korea Telecom (KIX)
11492 1271 1196 Cable One
10620 1343 1189 TVCABLE BOGOTA
Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
16927 UNALLOCATED 12.0.252.0/23 7018 AT&T WorldNet Servic
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.155.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.29.244.56/29 286 KPNQwest Backbone AS
10.29.245.1/32 286 KPNQwest Backbone AS
10.29.245.2/32 286 KPNQwest Backbone AS
10.29.245.15/32 286 KPNQwest Backbone AS
10.29.245.19/32 286 KPNQwest Backbone AS
10.29.245.25/32 286 KPNQwest Backbone AS
10.29.245.26/32 286 KPNQwest Backbone AS
10.29.245.27/32 286 KPNQwest Backbone AS
10.29.245.28/32 286 KPNQwest Backbone AS
10.29.245.29/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
5.0.0.0/16 12654 RIPE NCC RIS Project
5.1.0.0/21 12654 RIPE NCC RIS Project
5.1.24.0/24 12654 RIPE NCC RIS Project
24.129.192.0/19 7922 Continental Cablevision
37.0.0.0/16 12654 RIPE NCC RIS Project
37.1.0.0/21 12654 RIPE NCC RIS Project
37.1.24.0/24 12654 RIPE NCC RIS Project
36.126.8.255/8 77 Johns Hopkins University Appl
41.222.79.0/24 36938 Amsco Telecommunications Nige
41.223.92.0/22 36936 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/rviews/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 /8:21 /9:10 /10:25 /11:71 /12:214
/13:431 /14:758 /15:1373 /16:11520 /17:5759 /18:9500
/19:19160 /20:24606 /21:24568 /22:32162 /23:31356 /24:178690
/25:371 /26:380 /27:210 /28:385 /29:310 /30:690
/31:39 /32:622
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2304 3732 bellsouth.net, inc.
4323 1423 2632 Time Warner Telecom
6478 1394 1437 AT&T Worldnet Services
10620 1235 1343 TVCABLE BOGOTA
11492 1226 1271 Cable One
18566 1076 1095 Covad Communications
7011 1071 1174 Citizens Utilities
1785 1062 1789 AppliedTheory Corporation
6503 972 1187 AVANTEL, S.A.
19262 956 1837 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:142 2:26 4:17 5:1 8:320 12:2038
13:6 14:94 15:17 16:3 17:8 20:9
24:1458 27:490 32:143 33:5 34:2 36:1
37:1 38:715 40:101 41:2607 42:1 44:3
46:407 47:4 49:75 50:27 52:12 55:3
56:2 57:41 58:861 59:509 60:393 61:1112
62:1056 63:1948 64:3738 65:2322 66:4092 67:1780
68:1147 69:2923 70:754 71:391 72:1985 73:3
74:2336 75:300 76:325 77:860 78:747 79:438
80:1051 81:799 82:528 83:452 84:644 85:1055
86:517 87:719 88:404 89:1596 90:143 91:3353
92:475 93:1020 94:1152 95:710 96:408 97:247
98:718 99:33 101:4 107:2 108:77 109:820
110:444 111:672 112:309 113:319 114:481 115:669
116:908 117:655 118:607 119:1008 120:199 121:739
122:1570 123:1025 124:1229 125:1211 128:231 129:155
130:171 131:564 132:234 133:20 134:208 135:50
136:212 137:148 138:291 139:124 140:481 141:197
142:354 143:359 144:485 145:52 146:424 147:197
148:628 149:318 150:150 151:230 152:296 153:172
154:3 155:371 156:166 157:339 158:126 159:369
160:313 161:199 162:274 163:164 164:434 165:353
166:470 167:418 168:754 169:154 170:726 171:67
172:2 173:1156 174:484 175:264 176:1 177:2
178:655 180:733 182:475 183:242 184:206 186:826
187:771 188:876 189:1042 190:4281 192:5818 193:4794
194:3506 195:2935 196:1190 197:1 198:3550 199:3695
200:5542 201:1582 202:8400 203:8377 204:4051 205:2334
206:2583 207:2973 208:3870 209:3495 210:2565 211:1336
212:1937 213:1718 214:734 215:62 216:4813 217:1625
218:525 219:388 220:1185 221:445 222:342 223:81
End of report
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