Routing Table Report 00:00 GMT Fri 09 Sep, 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: 374656
Prefixes after maximum aggregation: 168381
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 178924
Total ASes present in the Internet Routing Table: 38735
Prefixes per ASN: 9.67
Origin-only ASes present in the Internet Routing Table: 32118
Origin ASes announcing only one prefix: 15439
Transit ASes present in the Internet Routing Table: 5220
Transit-only ASes present in the Internet Routing Table: 135
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 46
Max AS path prepend of ASN (50137) 41
Prefixes from unregistered ASNs in the Routing Table: 4461
Unregistered ASNs in the Routing Table: 704
Number of 32-bit ASNs allocated by the RIRs: 1708
Number of 32-bit ASNs visible in the Routing Table: 1397
Prefixes from 32-bit ASNs in the Routing Table: 3226
Special use prefixes present in the Routing Table: 82
Prefixes being announced from unallocated address space: 107
Number of addresses announced to Internet: 2306324630
Equivalent to 137 /8s, 119 /16s and 184 /24s
Percentage of available address space announced: 62.2
Percentage of allocated address space announced: 62.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.2
Total number of prefixes smaller than registry allocations: 155176
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 91483
Total APNIC prefixes after maximum aggregation: 29431
APNIC Deaggregation factor: 3.11
Prefixes being announced from the APNIC address blocks: 88119
Unique aggregates announced from the APNIC address blocks: 36774
APNIC Region origin ASes present in the Internet Routing Table: 4543
APNIC Prefixes per ASN: 19.40
APNIC Region origin ASes announcing only one prefix: 1263
APNIC Region transit ASes present in the Internet Routing Table: 718
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 26
Number of APNIC region 32-bit ASNs visible in the Routing Table: 81
Number of APNIC addresses announced to Internet: 610030336
Equivalent to 36 /8s, 92 /16s and 83 /24s
Percentage of available APNIC address space announced: 77.4
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: 146512
Total ARIN prefixes after maximum aggregation: 75425
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 118014
Unique aggregates announced from the ARIN address blocks: 44836
ARIN Region origin ASes present in the Internet Routing Table: 14662
ARIN Prefixes per ASN: 8.05
ARIN Region origin ASes announcing only one prefix: 5636
ARIN Region transit ASes present in the Internet Routing Table: 1541
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 36
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 667259292
Equivalent to 39 /8s, 197 /16s and 145 /24s
Percentage of available ARIN address space announced: 53.0
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: 89796
Total RIPE prefixes after maximum aggregation: 50125
RIPE Deaggregation factor: 1.79
Prefixes being announced from the RIPE address blocks: 82055
Unique aggregates announced from the RIPE address blocks: 52632
RIPE Region origin ASes present in the Internet Routing Table: 15946
RIPE Prefixes per ASN: 5.15
RIPE Region origin ASes announcing only one prefix: 7935
RIPE Region transit ASes present in the Internet Routing Table: 2506
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 46
Number of RIPE region 32-bit ASNs visible in the Routing Table: 993
Number of RIPE addresses announced to Internet: 473776588
Equivalent to 28 /8s, 61 /16s and 65 /24s
Percentage of available RIPE address space announced: 76.3
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: 35051
Total LACNIC prefixes after maximum aggregation: 7762
LACNIC Deaggregation factor: 4.52
Prefixes being announced from the LACNIC address blocks: 34279
Unique aggregates announced from the LACNIC address blocks: 17664
LACNIC Region origin ASes present in the Internet Routing Table: 1517
LACNIC Prefixes per ASN: 22.60
LACNIC Region origin ASes announcing only one prefix: 450
LACNIC Region transit ASes present in the Internet Routing Table: 270
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 307
Number of LACNIC addresses announced to Internet: 88333064
Equivalent to 5 /8s, 67 /16s and 219 /24s
Percentage of available LACNIC address space announced: 58.5
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: 8391
Total AfriNIC prefixes after maximum aggregation: 2069
AfriNIC Deaggregation factor: 4.06
Prefixes being announced from the AfriNIC address blocks: 6492
Unique aggregates announced from the AfriNIC address blocks: 2018
AfriNIC Region origin ASes present in the Internet Routing Table: 486
AfriNIC Prefixes per ASN: 13.36
AfriNIC Region origin ASes announcing only one prefix: 155
AfriNIC Region transit ASes present in the Internet Routing Table: 106
Average AfriNIC Region AS path length visible: 4.3
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 27336448
Equivalent to 1 /8s, 161 /16s and 31 /24s
Percentage of available AfriNIC address space announced: 40.7
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
17974 1974 516 31 PT TELEKOMUNIKASI INDONESIA
4766 1942 11038 647 Korea Telecom (KIX)
4755 1545 375 167 Videsh Sanchar Nigam Ltd. Aut
7545 1477 301 82 TPG Internet Pty Ltd
7552 1365 1064 7 Vietel Corporation
24560 1177 336 193 Bharti Airtel Ltd.
9829 1152 989 28 BSNL National Internet Backbo
9583 1076 79 504 Sify Limited
17488 1004 192 158 Hathway IP Over Cable Interne
18101 950 118 139 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 3563 3817 227 bellsouth.net, inc.
18566 1912 364 237 Covad Communications
1785 1826 680 122 AppliedTheory Corporation
4323 1624 1085 395 Time Warner Telecom
7029 1601 1026 194 Windstream Communications Inc
20115 1593 1541 633 Charter Communications
22773 1450 2907 99 Cox Communications, Inc.
19262 1394 4724 399 Verizon Global Networks
7018 1338 7051 879 AT&T WorldNet Services
30036 1323 243 687 Mediacom Communications Corp
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 1064 823 197 KPNQwest Backbone AS
34984 544 107 178 Tellcom Iletisim Hizmetleri
9116 540 326 31 Goldenlines main autonomous s
6830 526 1811 321 UPC Distribution Services
3292 523 2080 406 TDC Tele Danmark
20940 500 154 391 Akamai Technologies European
12479 469 594 8 Uni2 Autonomous System
8866 461 133 26 Bulgarian Telecommunication C
3320 431 8152 375 Deutsche Telekom AG
29049 423 31 55 AzerSat LLC.
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 1643 301 156 TVCABLE BOGOTA
8151 1451 2800 355 Uninet S.A. de C.V.
28573 1293 1003 71 Types of queries are: POCs, o
7303 1051 578 166 Telecom Argentina Stet-France
14420 715 57 88 Types of queries are: POCs, o
6503 594 450 70 AVANTEL, S.A.
22047 579 322 17 Types of queries are: POCs, o
27947 578 56 77 Telconet S.A
10481 548 430 20 Prima S.A.
3816 537 232 99 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 810 147 41 LINKdotNET AS number
8452 645 445 11 TEDATA
15475 512 74 8 Nile Online
36992 299 415 14 Etisalat MISR
3741 267 938 228 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
33776 207 13 14 Starcomms Nigeria Limited
15706 195 32 6 Sudatel Internet Exchange Aut
12258 194 28 63 YEBO-AS
24835 190 70 12 RAYA Telecom - Egypt
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 3563 3817 227 bellsouth.net, inc.
23456 3226 764 1741 >>UNKNOWN<<
17974 1974 516 31 PT TELEKOMUNIKASI INDONESIA
4766 1942 11038 647 Korea Telecom (KIX)
18566 1912 364 237 Covad Communications
1785 1826 680 122 AppliedTheory Corporation
10620 1643 301 156 TVCABLE BOGOTA
4323 1624 1085 395 Time Warner Telecom
7029 1601 1026 194 Windstream Communications Inc
20115 1593 1541 633 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
17974 1974 1943 PT TELEKOMUNIKASI INDONESIA
1785 1826 1704 AppliedTheory Corporation
18566 1912 1675 Covad Communications
10620 1643 1487 TVCABLE BOGOTA
23456 3226 1485 >>UNKNOWN<<
7029 1601 1407 Windstream Communications Inc
7545 1477 1395 TPG Internet Pty Ltd
4755 1545 1378 Videsh Sanchar Nigam Ltd. Aut
7552 1365 1358 Vietel Corporation
22773 1450 1351 Cox Communications, Inc.
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
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
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 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
10.29.245.20/32 286 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 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
46.18.104.0/21 23456 >>UNKNOWN<<
62.61.220.0/24 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 /12:234
/13:462 /14:806 /15:1448 /16:12082 /17:6206 /18:10294
/19:20234 /20:27953 /21:27377 /22:36415 /23:35113 /24:194097
/25:76 /26:85 /27:113 /28:291 /29:107 /30:552
/31:72 /32:499
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2199 3563 bellsouth.net, inc.
18566 1868 1912 Covad Communications
23456 1557 3226 >>UNKNOWN<<
10620 1538 1643 TVCABLE BOGOTA
7029 1286 1601 Windstream Communications Inc
30036 1286 1323 Mediacom Communications Corp
11492 1108 1154 Cable One
7011 1058 1183 Citizens Utilities
1785 1053 1826 AppliedTheory Corporation
22773 939 1450 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:372 2:50 4:19 5:1 6:3 8:347
12:1955 13:1 14:533 15:13 16:3 17:5
20:10 23:31 24:1672 27:939 31:517 32:149
33:3 34:2 36:4 38:740 40:107 41:2482
42:40 44:3 46:976 47:3 49:235 50:408
52:13 54:2 55:5 56:2 57:44 58:873
59:495 60:376 61:1175 62:1089 63:1964 64:4077
65:2307 66:3981 67:1975 68:1292 69:3276 70:827
71:377 72:1885 73:1 74:2483 75:340 76:347
77:871 78:669 79:466 80:1128 81:845 82:506
83:499 84:692 85:1095 86:420 87:864 88:350
89:1549 90:232 91:4077 92:526 93:1135 94:1354
95:801 96:426 97:272 98:939 99:37 101:202
103:270 106:71 107:43 108:82 109:1022 110:667
111:749 112:311 113:441 114:569 115:714 116:943
117:701 118:893 119:1199 120:336 121:708 122:1609
123:1003 124:1348 125:1402 128:249 129:181 130:166
131:582 132:119 133:21 134:216 135:52 136:212
137:134 138:293 139:129 140:492 141:289 142:392
143:426 144:494 145:61 146:467 147:247 148:689
149:250 150:153 151:189 152:443 153:179 154:6
155:394 156:201 157:355 158:145 159:457 160:317
161:206 162:336 163:175 164:513 165:398 166:538
167:434 168:747 169:147 170:853 171:84 172:1
173:1664 174:634 175:401 176:161 177:259 178:992
180:1022 181:26 182:612 183:228 184:355 185:1
186:1412 187:679 188:939 189:872 190:5147 192:5946
193:5012 194:3547 195:3072 196:1240 197:148 198:3598
199:4114 200:5521 201:1629 202:8536 203:8495 204:4251
205:2354 206:2740 207:2842 208:4154 209:3522 210:2712
211:1467 212:2137 213:1773 214:768 215:76 216:4903
217:1620 218:553 219:346 220:1197 221:510 222:353
223:260
End of report
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