Routing Table Report 08:00 +10GMT Sat 24 Dec, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 381545
Prefixes after maximum aggregation: 166179
Deaggregation factor: 2.30
Unique aggregates announced to Internet: 189740
Total ASes present in the Internet Routing Table: 37740
Prefixes per ASN: 10.11
Origin-only ASes present in the Internet Routing Table: 32523
Origin ASes announcing only one prefix: 15524
Transit ASes present in the Internet Routing Table: 5217
Transit-only ASes present in the Internet Routing Table: 125
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 24
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 2720
Unregistered ASNs in the Routing Table: 1089
Number of 32-bit ASNs allocated by the RIRs: 2123
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4230
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 130
Number of addresses announced to Internet: 2521101568
Equivalent to 150 /8s, 68 /16s and 245 /24s
Percentage of available address space announced: 68.0
Percentage of allocated address space announced: 68.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.8
Total number of prefixes smaller than registry allocations: 159902
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 91017
Total APNIC prefixes after maximum aggregation: 29985
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 88397
Unique aggregates announced from the APNIC address blocks: 38749
APNIC Region origin ASes present in the Internet Routing Table: 4569
APNIC Prefixes per ASN: 19.35
APNIC Region origin ASes announcing only one prefix: 1262
APNIC Region transit ASes present in the Internet Routing Table: 706
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 631971840
Equivalent to 37 /8s, 171 /16s and 32 /24s
Percentage of available APNIC address space announced: 80.1
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: 145498
Total ARIN prefixes after maximum aggregation: 74466
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 117856
Unique aggregates announced from the ARIN address blocks: 48798
ARIN Region origin ASes present in the Internet Routing Table: 14750
ARIN Prefixes per ASN: 7.99
ARIN Region origin ASes announcing only one prefix: 5657
ARIN Region transit ASes present in the Internet Routing Table: 1491
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 804630784
Equivalent to 47 /8s, 245 /16s and 177 /24s
Percentage of available ARIN address space announced: 63.9
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: 95294
Total RIPE prefixes after maximum aggregation: 51682
RIPE Deaggregation factor: 1.84
Prefixes being announced from the RIPE address blocks: 87299
Unique aggregates announced from the RIPE address blocks: 55340
RIPE Region origin ASes present in the Internet Routing Table: 16209
RIPE Prefixes per ASN: 5.39
RIPE Region origin ASes announcing only one prefix: 7997
RIPE Region transit ASes present in the Internet Routing Table: 2564
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 22
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 494864384
Equivalent to 29 /8s, 127 /16s and 8 /24s
Percentage of available RIPE address space announced: 79.7
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: 36274
Total LACNIC prefixes after maximum aggregation: 7912
LACNIC Deaggregation factor: 4.58
Prefixes being announced from the LACNIC address blocks: 35928
Unique aggregates announced from the LACNIC address blocks: 18919
LACNIC Region origin ASes present in the Internet Routing Table: 1545
LACNIC Prefixes per ASN: 23.25
LACNIC Region origin ASes announcing only one prefix: 452
LACNIC Region transit ASes present in the Internet Routing Table: 274
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 94918912
Equivalent to 5 /8s, 168 /16s and 89 /24s
Percentage of available LACNIC address space announced: 62.9
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: 8527
Total AfriNIC prefixes after maximum aggregation: 2062
AfriNIC Deaggregation factor: 4.14
Prefixes being announced from the AfriNIC address blocks: 6586
Unique aggregates announced from the AfriNIC address blocks: 2054
AfriNIC Region origin ASes present in the Internet Routing Table: 500
AfriNIC Prefixes per ASN: 13.17
AfriNIC Region origin ASes announcing only one prefix: 156
AfriNIC Region transit ASes present in the Internet Routing Table: 112
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 30862848
Equivalent to 1 /8s, 214 /16s and 238 /24s
Percentage of available AfriNIC address space announced: 46.0
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 1928 11099 660 Korea Telecom (KIX)
17974 1628 503 38 PT Telekomunikasi Indonesia
7545 1626 303 86 TPG Internet Pty Ltd
4755 1499 385 157 TATA Communications formerly
9829 1168 989 28 National Internet Backbone
9583 1101 81 494 Sify Limited
24560 1012 385 167 Bharti Airtel Ltd., Telemedia
7552 1007 1062 11 Vietel Corporation
18101 975 131 157 Reliance Infocom Ltd Internet
4808 959 1948 274 CNCGROUP IP network China169
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3470 3814 220 BellSouth.net Inc.
7029 2950 1042 213 Windstream Communications Inc
18566 2094 383 177 Covad Communications Co.
1785 1862 680 121 PaeTec Communications, Inc.
4323 1621 1081 386 tw telecom holdings, inc.
20115 1611 1549 622 Charter Communications
22773 1514 2909 107 Cox Communications Inc.
30036 1465 260 685 Mediacom Communications Corp
19262 1388 4683 401 Verizon Online LLC
7018 1311 7045 863 AT&T Services, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1504 480 15 Corbina telecom
15557 1092 2161 64 NEUF CEGETEL (formerly LDCOM
2118 672 99 14 EUnet/RELCOM Autonomous Syste
6830 648 1928 413 UPC Broadband
34984 627 132 196 BILISIM TELEKOM
20940 555 178 443 Akamai Technologies European
12479 547 636 53 France Telecom Espana SA
9116 541 326 32 Goldenlines main autonomous s
3320 531 8162 397 Deutsche Telekom AG
3292 481 2106 408 TDC Data Networks
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1720 318 158 Types of queries are: POCs, o
28573 1566 1064 75 Types of queries are: POCs, o
8151 1314 2962 343 Uninet S.A. de C.V.
7303 1249 752 174 Telecom Argentina S.A.
27947 608 73 94 Telconet S.A
22047 582 322 17 Types of queries are: POCs, o
7738 551 1050 31 Telecomunicacoes da Bahia S.A
3816 550 237 90 Types of queries are: POCs, o
11172 530 102 97 Alestra, S. de R.L. de C.V.
6503 527 434 68 Axtel, S.A.B. de C.V.
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 1036 958 13 TEDATA
24863 785 146 33 LINKdotNET AS number
3741 280 939 229 The Internet Solution
6713 243 647 17 Itissalat Al-MAGHRIB
15706 242 32 6 Sudatel Internet Exchange Aut
33776 240 13 8 Starcomms Nigeria Limited
29571 217 17 13 Ci Telecom Autonomous system
12258 196 28 61 Vodacom Internet Company
24835 188 80 8 RAYA Telecom - Egypt
16637 157 664 85 MTN Network Solutions
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3470 3814 220 BellSouth.net Inc.
7029 2950 1042 213 Windstream Communications Inc
18566 2094 383 177 Covad Communications Co.
4766 1928 11099 660 Korea Telecom (KIX)
1785 1862 680 121 PaeTec Communications, Inc.
10620 1720 318 158 Types of queries are: POCs, o
17974 1628 503 38 PT Telekomunikasi Indonesia
7545 1626 303 86 TPG Internet Pty Ltd
4323 1621 1081 386 tw telecom holdings, inc.
20115 1611 1549 622 Charter Communications
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 2950 2737 Windstream Communications Inc
18566 2094 1917 Covad Communications Co.
1785 1862 1741 PaeTec Communications, Inc.
17974 1628 1590 PT Telekomunikasi Indonesia
10620 1720 1562 Types of queries are: POCs, o
7545 1626 1540 TPG Internet Pty Ltd
28573 1566 1491 Types of queries are: POCs, o
8402 1504 1489 Corbina telecom
22773 1514 1407 Cox Communications Inc.
4755 1499 1342 TATA Communications formerly
Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65333 PRIVATE 10.0.0.0/8 0 *
32805 UNALLOCATED 12.1.225.0/24 7018 AT&T Services, Inc.
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T Services, Inc.
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T Services, Inc.
16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion
32567 UNALLOCATED 12.25.107.0/24 4323 tw telecom holdings,
30031 UNALLOCATED 12.27.122.0/24 7018 AT&T Services, Inc.
26095 UNALLOCATED 12.34.8.0/24 7018 AT&T Services, Inc.
21861 UNALLOCATED 12.37.59.0/24 7018 AT&T Services, Inc.
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T Services, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.0.0.0/8 65333 Internet Assigned Numbers Aut
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
169.254.0.0/16 65333 Internet Assigned Numbers Aut
172.16.0.0/12 65333 Internet Assigned Numbers Aut
192.0.2.0/24 65333 Internet Assigned Numbers Aut
192.168.0.0/16 0 *
198.18.0.0/15 65333 Internet Assigned Numbers Aut
Complete listing at http://thyme.rand.apnic.net/london/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
37.19.72.0/21 42322 Limited Liability Company "Zh
37.25.64.0/21 33828 iptoX GmbH
Complete listing at http://thyme.rand.apnic.net/london/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 /12:238
/13:465 /14:812 /15:1444 /16:12032 /17:6106 /18:10149
/19:20229 /20:27877 /21:28160 /22:38155 /23:35597 /24:199597
/25:11 /26:21 /27:20 /28:155 /29:133 /30:67
/31:0 /32:137
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2562 2950 Windstream Communications Inc
6389 2114 3470 BellSouth.net Inc.
18566 2043 2094 Covad Communications Co.
10620 1615 1720 Types of queries are: POCs, o
8402 1483 1504 Corbina telecom
30036 1425 1465 Mediacom Communications Corp
11492 1115 1152 CABLE ONE, INC.
1785 1063 1862 PaeTec Communications, Inc.
7011 1051 1168 Frontier Communications of Am
15557 1042 1092 NEUF CEGETEL (formerly LDCOM
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:468 2:413 4:15 5:1 6:3 8:366
12:1945 13:1 14:569 15:11 16:3 17:7
20:9 23:79 24:1712 27:1121 31:733 32:62
33:2 34:2 36:4 37:6 38:770 40:115
41:3000 42:78 44:3 46:1144 47:3 49:280
50:471 52:13 55:5 56:2 57:38 58:879
59:484 60:339 61:1068 62:938 63:1959 64:4110
65:2300 66:4360 67:1988 68:1166 69:3128 70:922
71:410 72:1785 74:2642 75:431 76:320 77:938
78:866 79:465 80:1173 81:839 82:529 83:531
84:576 85:1162 86:749 87:907 88:353 89:1580
90:249 91:4375 92:533 93:1517 94:1334 95:1044
96:393 97:286 98:785 99:38 100:2 101:130
103:578 106:10 107:118 108:100 109:1403 110:675
111:825 112:420 113:492 114:590 115:689 116:854
117:690 118:889 119:1248 120:358 121:643 122:1566
123:1029 124:1295 125:1299 128:477 129:181 130:179
131:584 132:155 133:21 134:217 135:54 136:211
137:148 138:284 139:125 140:466 141:255 142:365
143:387 144:498 145:67 146:469 147:223 148:613
149:268 150:158 151:192 152:443 153:170 154:6
155:398 156:207 157:334 158:154 159:432 160:357
161:204 162:330 163:176 164:518 165:391 166:544
167:455 168:811 169:145 170:830 171:95 172:4
173:1806 174:602 175:411 176:322 177:425 178:1147
180:1207 181:39 182:662 183:264 184:408 185:1
186:1399 187:781 188:1003 189:1175 190:5295 192:5940
193:5438 194:3788 195:3182 196:1274 197:175 198:3570
199:4189 200:5462 201:1684 202:8273 203:8434 204:4265
205:2399 206:2593 207:2747 208:3999 209:3537 210:2663
211:1445 212:1972 213:1803 214:791 215:91 216:4886
217:1475 218:560 219:331 220:1221 221:508 222:295
223:251
End of report
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