Routing Table Report 00:00 GMT Wed 16 Nov, 2011
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: 385363
Prefixes after maximum aggregation: 168127
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 187694
Total ASes present in the Internet Routing Table: 39351
Prefixes per ASN: 9.79
Origin-only ASes present in the Internet Routing Table: 32417
Origin ASes announcing only one prefix: 15516
Transit ASes present in the Internet Routing Table: 5294
Transit-only ASes present in the Internet Routing Table: 135
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 28
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 5523
Unregistered ASNs in the Routing Table: 911
Number of 32-bit ASNs allocated by the RIRs: 1948
Number of 32-bit ASNs visible in the Routing Table: 1640
Prefixes from 32-bit ASNs in the Routing Table: 3778
Special use prefixes present in the Routing Table: 85
Prefixes being announced from unallocated address space: 88
Number of addresses announced to Internet: 2490708258
Equivalent to 148 /8s, 117 /16s and 49 /24s
Percentage of available address space announced: 67.2
Percentage of allocated address space announced: 67.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.6
Total number of prefixes smaller than registry allocations: 161701
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93000
Total APNIC prefixes after maximum aggregation: 30054
APNIC Deaggregation factor: 3.09
Prefixes being announced from the APNIC address blocks: 89524
Unique aggregates announced from the APNIC address blocks: 38373
APNIC Region origin ASes present in the Internet Routing Table: 4587
APNIC Prefixes per ASN: 19.52
APNIC Region origin ASes announcing only one prefix: 1284
APNIC Region transit ASes present in the Internet Routing Table: 718
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 23
Number of APNIC region 32-bit ASNs visible in the Routing Table: 110
Number of APNIC addresses announced to Internet: 630032640
Equivalent to 37 /8s, 141 /16s and 137 /24s
Percentage of available APNIC address space announced: 79.9
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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, 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: 148713
Total ARIN prefixes after maximum aggregation: 76672
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 120620
Unique aggregates announced from the ARIN address blocks: 48495
ARIN Region origin ASes present in the Internet Routing Table: 14761
ARIN Prefixes per ASN: 8.17
ARIN Region origin ASes announcing only one prefix: 5632
ARIN Region transit ASes present in the Internet Routing Table: 1553
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 803187720
Equivalent to 47 /8s, 223 /16s and 172 /24s
Percentage of available ARIN address space announced: 63.8
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, 45/8, 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, 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: 94227
Total RIPE prefixes after maximum aggregation: 51289
RIPE Deaggregation factor: 1.84
Prefixes being announced from the RIPE address blocks: 85616
Unique aggregates announced from the RIPE address blocks: 54423
RIPE Region origin ASes present in the Internet Routing Table: 16140
RIPE Prefixes per ASN: 5.30
RIPE Region origin ASes announcing only one prefix: 7993
RIPE Region transit ASes present in the Internet Routing Table: 2553
Average RIPE Region AS path length visible: 4.5
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1141
Number of RIPE addresses announced to Internet: 492234188
Equivalent to 29 /8s, 86 /16s and 229 /24s
Percentage of available RIPE address space announced: 79.3
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
196608-198655
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, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 36851
Total LACNIC prefixes after maximum aggregation: 7974
LACNIC Deaggregation factor: 4.62
Prefixes being announced from the LACNIC address blocks: 36201
Unique aggregates announced from the LACNIC address blocks: 18624
LACNIC Region origin ASes present in the Internet Routing Table: 1548
LACNIC Prefixes per ASN: 23.39
LACNIC Region origin ASes announcing only one prefix: 450
LACNIC Region transit ASes present in the Internet Routing Table: 283
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 25
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 373
Number of LACNIC addresses announced to Internet: 93106696
Equivalent to 5 /8s, 140 /16s and 178 /24s
Percentage of available LACNIC address space announced: 61.7
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 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: 8595
Total AfriNIC prefixes after maximum aggregation: 2063
AfriNIC Deaggregation factor: 4.17
Prefixes being announced from the AfriNIC address blocks: 6650
Unique aggregates announced from the AfriNIC address blocks: 2038
AfriNIC Region origin ASes present in the Internet Routing Table: 497
AfriNIC Prefixes per ASN: 13.38
AfriNIC Region origin ASes announcing only one prefix: 157
AfriNIC Region transit ASes present in the Internet Routing Table: 112
Average AfriNIC Region AS path length visible: 4.3
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 27693568
Equivalent to 1 /8s, 166 /16s and 146 /24s
Percentage of available AfriNIC address space announced: 41.3
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1947 11103 661 Korea Telecom (KIX)
17974 1648 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1625 303 88 TPG Internet Pty Ltd
4755 1527 378 170 Videsh Sanchar Nigam Ltd. Aut
7552 1394 1064 7 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
9583 1116 83 512 Sify Limited
4808 1064 2070 305 CNCGROUP IP network: China169
24560 964 343 218 Bharti Airtel Ltd.
18101 952 119 148 Reliance Infocom Ltd Internet
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 3543 3814 220 bellsouth.net, inc.
7029 2861 1042 212 Windstream Communications Inc
18566 2093 383 177 Covad Communications
1785 1851 680 122 AppliedTheory Corporation
4323 1608 1093 388 Time Warner Telecom
20115 1595 1545 625 Charter Communications
22773 1496 2909 103 Cox Communications, Inc.
30036 1421 256 669 Mediacom Communications Corp
19262 1395 4728 400 Verizon Global Networks
7018 1315 7047 865 AT&T WorldNet Services
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
8402 1480 416 14 Corbina telecom
286 1082 810 199 KPNQwest Backbone AS
6830 647 1927 411 UPC Distribution Services
34984 600 112 188 Tellcom Iletisim Hizmetleri
20940 559 187 438 Akamai Technologies European
9116 541 326 31 Goldenlines main autonomous s
3292 529 2106 407 TDC Tele Danmark
3320 512 8168 389 Deutsche Telekom AG
12479 480 596 9 Uni2 Autonomous System
8866 462 133 26 Bulgarian Telecommunication C
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
10620 1706 316 157 TVCABLE BOGOTA
8151 1482 2935 347 Uninet S.A. de C.V.
28573 1481 1043 79 Types of queries are: POCs, o
7303 1238 751 173 Telecom Argentina Stet-France
27947 611 72 85 Telconet S.A
22047 580 322 17 Types of queries are: POCs, o
6503 577 434 70 AVANTEL, S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
10481 547 429 25 Prima S.A.
3816 542 234 96 COLOMBIA TELECOMUNICACIONES S
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
24863 755 146 34 LINKdotNET AS number
8452 685 446 12 TEDATA
15475 444 74 8 Nile Online
36992 282 415 20 Etisalat MISR
3741 281 939 230 The Internet Solution
15706 242 32 6 Sudatel Internet Exchange Aut
6713 235 519 14 Itissalat Al-MAGHRIB
29571 218 17 13 Ci Telecom Autonomous system
33776 212 13 14 Starcomms Nigeria Limited
12258 197 28 58 YEBO-AS
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 3543 3814 220 bellsouth.net, inc.
7029 2861 1042 212 Windstream Communications Inc
18566 2093 383 177 Covad Communications
4766 1947 11103 661 Korea Telecom (KIX)
1785 1851 680 122 AppliedTheory Corporation
10620 1706 316 157 TVCABLE BOGOTA
17974 1648 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1625 303 88 TPG Internet Pty Ltd
4323 1608 1093 388 Time Warner Telecom
20115 1595 1545 625 Charter Communications
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 2861 2649 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1851 1729 AppliedTheory Corporation
17974 1648 1612 PT TELEKOMUNIKASI INDONESIA
10620 1706 1549 TVCABLE BOGOTA
7545 1625 1537 TPG Internet Pty Ltd
8402 1480 1466 Corbina telecom
28573 1481 1402 Types of queries are: POCs, o
22773 1496 1393 Cox Communications, Inc.
7552 1394 1387 Vietel Corporation
Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
32873 UNALLOCATED 12.46.100.0/23 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
10.29.245.20/32 286 KPNQwest Backbone AS
10.29.245.21/32 286 KPNQwest Backbone AS
10.29.245.22/32 286 KPNQwest Backbone AS
10.29.245.25/32 286 KPNQwest Backbone AS
10.29.245.26/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
41.222.79.0/24 37345 MEDALLION Communications
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
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 /8:20 /9:12 /10:27 /11:81 /12:236
/13:465 /14:813 /15:1455 /16:12152 /17:6332 /18:10458
/19:20509 /20:28809 /21:28153 /22:38182 /23:35857 /24:200099
/25:66 /26:85 /27:111 /28:287 /29:117 /30:504
/31:53 /32:480
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2485 2861 Windstream Communications Inc
6389 2184 3543 bellsouth.net, inc.
18566 2042 2093 Covad Communications
10620 1601 1706 TVCABLE BOGOTA
8402 1457 1480 Corbina telecom
30036 1381 1421 Mediacom Communications Corp
11492 1117 1154 Cable One
1785 1058 1851 AppliedTheory Corporation
7011 1051 1168 Citizens Utilities
22773 958 1496 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:415 2:489 4:19 5:1 6:3 8:356
12:1968 13:1 14:551 15:11 16:3 17:7
20:9 23:63 24:1686 27:1034 31:705 32:120
33:2 34:2 36:4 38:761 39:1 40:110
41:2694 42:61 43:1 44:3 46:1045 47:3
49:294 50:455 52:13 55:6 56:2 57:57
58:921 59:490 60:356 61:1143 62:1095 63:1984
64:4083 65:2302 66:4348 67:2051 68:1358 69:3249
70:954 71:389 72:1850 73:1 74:2684 75:443
76:328 77:891 78:887 79:494 80:1142 81:842
82:525 83:523 84:624 85:1157 86:411 87:906
88:359 89:1611 90:236 91:4274 92:537 93:1437
94:1312 95:1089 96:433 97:285 98:827 99:37
101:234 103:471 106:7 107:93 108:83 109:1187
110:675 111:801 112:358 113:486 114:624 115:712
116:893 117:719 118:901 119:1274 120:346 121:690
122:1581 123:1021 124:1351 125:1353 128:254 129:187
130:169 131:630 132:155 133:21 134:228 135:54
136:213 137:146 138:287 139:132 140:493 141:253
142:390 143:412 144:497 145:65 146:472 147:229
148:693 149:267 150:164 151:194 152:449 153:172
154:7 155:389 156:208 157:363 158:155 159:491
160:324 161:209 162:374 163:174 164:511 165:387
166:541 167:444 168:822 169:148 170:880 171:87
172:4 173:1765 174:605 175:432 176:292 177:377
178:1118 180:1152 181:39 182:660 183:238 184:396
185:1 186:1414 187:783 188:971 189:1153 190:5222
192:5963 193:5074 194:3574 195:3126 196:1287 197:169
198:3628 199:4232 200:5536 201:1699 202:8542 203:8553
204:4310 205:2382 206:2685 207:2817 208:4038 209:3611
210:2744 211:1472 212:2039 213:1816 214:811 215:97
216:4948 217:1602 218:573 219:339 220:1264 221:518
222:326 223:279
End of report
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