Routing Table Report 00:00 GMT Mon 29 Aug, 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: 372569
Prefixes after maximum aggregation: 167819
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 178187
Total ASes present in the Internet Routing Table: 38572
Prefixes per ASN: 9.66
Origin-only ASes present in the Internet Routing Table: 31957
Origin ASes announcing only one prefix: 15341
Transit ASes present in the Internet Routing Table: 5255
Transit-only ASes present in the Internet Routing Table: 155
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 4351
Unregistered ASNs in the Routing Table: 674
Number of 32-bit ASNs allocated by the RIRs: 1684
Number of 32-bit ASNs visible in the Routing Table: 1360
Prefixes from 32-bit ASNs in the Routing Table: 3147
Special use prefixes present in the Routing Table: 79
Prefixes being announced from unallocated address space: 109
Number of addresses announced to Internet: 2302910991
Equivalent to 137 /8s, 67 /16s and 162 /24s
Percentage of available address space announced: 62.1
Percentage of allocated address space announced: 62.1
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: 154481
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90638
Total APNIC prefixes after maximum aggregation: 29398
APNIC Deaggregation factor: 3.08
Prefixes being announced from the APNIC address blocks: 87231
Unique aggregates announced from the APNIC address blocks: 36623
APNIC Region origin ASes present in the Internet Routing Table: 4531
APNIC Prefixes per ASN: 19.25
APNIC Region origin ASes announcing only one prefix: 1262
APNIC Region transit ASes present in the Internet Routing Table: 718
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 76
Number of APNIC addresses announced to Internet: 609587456
Equivalent to 36 /8s, 85 /16s and 145 /24s
Percentage of available APNIC address space announced: 77.3
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: 145658
Total ARIN prefixes after maximum aggregation: 75189
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 117414
Unique aggregates announced from the ARIN address blocks: 44659
ARIN Region origin ASes present in the Internet Routing Table: 14573
ARIN Prefixes per ASN: 8.06
ARIN Region origin ASes announcing only one prefix: 5567
ARIN Region transit ASes present in the Internet Routing Table: 1530
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 666619160
Equivalent to 39 /8s, 187 /16s and 205 /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: 89804
Total RIPE prefixes after maximum aggregation: 49954
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 82182
Unique aggregates announced from the RIPE address blocks: 52506
RIPE Region origin ASes present in the Internet Routing Table: 15919
RIPE Prefixes per ASN: 5.16
RIPE Region origin ASes announcing only one prefix: 7914
RIPE Region transit ASes present in the Internet Routing Table: 2528
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 971
Number of RIPE addresses announced to Internet: 473583052
Equivalent to 28 /8s, 58 /16s and 77 /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: 34786
Total LACNIC prefixes after maximum aggregation: 7752
LACNIC Deaggregation factor: 4.49
Prefixes being announced from the LACNIC address blocks: 33959
Unique aggregates announced from the LACNIC address blocks: 17501
LACNIC Region origin ASes present in the Internet Routing Table: 1507
LACNIC Prefixes per ASN: 22.53
LACNIC Region origin ASes announcing only one prefix: 449
LACNIC Region transit ASes present in the Internet Routing Table: 280
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 297
Number of LACNIC addresses announced to Internet: 87807496
Equivalent to 5 /8s, 59 /16s and 214 /24s
Percentage of available LACNIC address space announced: 58.2
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: 8321
Total AfriNIC prefixes after maximum aggregation: 2066
AfriNIC Deaggregation factor: 4.03
Prefixes being announced from the AfriNIC address blocks: 6419
Unique aggregates announced from the AfriNIC address blocks: 2011
AfriNIC Region origin ASes present in the Internet Routing Table: 479
AfriNIC Prefixes per ASN: 13.40
AfriNIC Region origin ASes announcing only one prefix: 149
AfriNIC Region transit ASes present in the Internet Routing Table: 104
Average AfriNIC Region AS path length visible: 4.1
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: 26788096
Equivalent to 1 /8s, 152 /16s and 193 /24s
Percentage of available AfriNIC address space announced: 39.9
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 1981 516 31 PT TELEKOMUNIKASI INDONESIA
4766 1941 11038 646 Korea Telecom (KIX)
7545 1571 301 83 TPG Internet Pty Ltd
4755 1531 374 163 Videsh Sanchar Nigam Ltd. Aut
7552 1414 1064 7 Vietel Corporation
24560 1197 336 189 Bharti Airtel Ltd.
9829 1153 989 28 BSNL National Internet Backbo
9583 1080 80 498 Sify Limited
17488 1036 193 148 Hathway IP Over Cable Interne
4808 984 2027 281 CNCGROUP IP network: China169
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 3582 3817 228 bellsouth.net, inc.
18566 1912 364 240 Covad Communications
1785 1822 681 124 AppliedTheory Corporation
7029 1618 1033 209 Windstream Communications Inc
4323 1614 1101 396 Time Warner Telecom
20115 1588 1538 632 Charter Communications
22773 1441 2903 96 Cox Communications, Inc.
19262 1404 4778 395 Verizon Global Networks
7018 1342 7084 882 AT&T WorldNet Services
2386 1209 514 872 AT&T Data Communications Serv
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 1032 797 188 KPNQwest Backbone AS
34984 541 107 182 Tellcom Iletisim Hizmetleri
9116 540 326 31 Goldenlines main autonomous s
6830 523 1810 321 UPC Distribution Services
3292 519 2080 403 TDC Tele Danmark
20940 485 145 382 Akamai Technologies European
8866 458 133 26 Bulgarian Telecommunication C
12479 456 593 7 Uni2 Autonomous System
3320 423 8149 369 Deutsche Telekom AG
29049 423 31 57 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 1625 297 155 TVCABLE BOGOTA
8151 1434 2759 347 Uninet S.A. de C.V.
28573 1259 996 67 Types of queries are: POCs, o
7303 1059 578 173 Telecom Argentina Stet-France
14420 711 56 87 Types of queries are: POCs, o
6503 600 450 69 AVANTEL, S.A.
22047 578 322 17 Types of queries are: POCs, o
27947 573 56 78 Telconet S.A
10481 548 430 20 Prima S.A.
3816 531 232 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 810 147 43 LINKdotNET AS number
8452 636 445 11 TEDATA
15475 513 74 8 Nile Online
36992 301 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
15706 219 32 6 Sudatel Internet Exchange Aut
33776 198 12 22 Starcomms Nigeria Limited
12258 195 28 62 YEBO-AS
24835 176 70 11 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 3582 3817 228 bellsouth.net, inc.
23456 3147 745 1687 >>UNKNOWN<<
17974 1981 516 31 PT TELEKOMUNIKASI INDONESIA
4766 1941 11038 646 Korea Telecom (KIX)
18566 1912 364 240 Covad Communications
1785 1822 681 124 AppliedTheory Corporation
10620 1625 297 155 TVCABLE BOGOTA
7029 1618 1033 209 Windstream Communications Inc
4323 1614 1101 396 Time Warner Telecom
20115 1588 1538 632 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 1981 1950 PT TELEKOMUNIKASI INDONESIA
1785 1822 1698 AppliedTheory Corporation
18566 1912 1672 Covad Communications
7545 1571 1488 TPG Internet Pty Ltd
10620 1625 1470 TVCABLE BOGOTA
23456 3147 1460 >>UNKNOWN<<
7029 1618 1409 Windstream Communications Inc
7552 1414 1407 Vietel Corporation
4755 1531 1368 Videsh Sanchar Nigam Ltd. Aut
22773 1441 1345 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 /12:233
/13:461 /14:802 /15:1441 /16:12049 /17:6192 /18:10258
/19:20105 /20:27782 /21:27143 /22:36139 /23:34923 /24:193080
/25:78 /26:86 /27:117 /28:288 /29:124 /30:540
/31:98 /32:490
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2213 3582 bellsouth.net, inc.
18566 1868 1912 Covad Communications
23456 1552 3147 >>UNKNOWN<<
10620 1520 1625 TVCABLE BOGOTA
7029 1301 1618 Windstream Communications Inc
11492 1105 1151 Cable One
7011 1061 1186 Citizens Utilities
1785 1052 1822 AppliedTheory Corporation
22773 936 1441 Cox Communications, Inc.
30036 930 958 Mediacom Communications Corp
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:365 2:44 4:19 5:1 6:3 8:342
12:1948 13:1 14:518 15:13 16:3 17:5
20:10 23:31 24:1675 27:912 31:514 32:149
33:4 34:2 36:4 38:736 40:107 41:2467
42:50 44:3 46:1076 47:3 49:221 50:420
52:13 54:2 55:6 56:2 57:45 58:863
59:501 60:375 61:1173 62:1107 63:1947 64:4049
65:2304 66:3967 67:1955 68:1288 69:3230 70:824
71:374 72:1875 73:1 74:2464 75:342 76:344
77:868 78:709 79:484 80:1125 81:832 82:500
83:479 84:701 85:1087 86:519 87:850 88:343
89:1558 90:224 91:4055 92:526 93:1136 94:1350
95:875 96:422 97:266 98:938 99:37 101:79
103:240 106:79 107:36 108:82 109:1025 110:644
111:736 112:314 113:418 114:559 115:702 116:1011
117:678 118:884 119:1194 120:331 121:699 122:1617
123:988 124:1318 125:1330 128:226 129:180 130:166
131:577 132:117 133:21 134:214 135:50 136:213
137:136 138:291 139:129 140:486 141:285 142:390
143:424 144:483 145:61 146:461 147:230 148:688
149:251 150:155 151:187 152:441 153:179 154:5
155:398 156:201 157:355 158:140 159:458 160:318
161:207 162:334 163:166 164:511 165:391 166:539
167:433 168:745 169:151 170:848 171:83 172:1
173:1652 174:635 175:399 176:156 177:251 178:1012
180:1013 181:25 182:606 183:237 184:343 185:1
186:1393 187:691 188:937 189:860 190:5137 192:5935
193:5003 194:3539 195:3076 196:1245 197:142 198:3575
199:4078 200:5507 201:1511 202:8390 203:8469 204:4249
205:2330 206:2723 207:2835 208:4133 209:3510 210:2681
211:1463 212:2130 213:1771 214:768 215:76 216:4881
217:1596 218:553 219:353 220:1225 221:515 222:352
223:248
End of report
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