The Border Gateway Protocol (BGP) is the protocol backing the core routing decisions on the Internet. It maintains a table of IP networks or 'prefixes' which designate network reachability among autonomous systems (AS). It is described as a path vector protocol. BGP does not use traditional Interior Gateway Protocol (IGP) metrics, but makes routing decisions based on path, network policies and/or rulesets. For this reason, it is more appropriately termed a reachability protocol rather than routing protocol.

Friday, December 6, 2013

[bgp-stats] Routing Table Report - Washington view

* BGP Routing Table Analysis Reports *
Routing Table Report 09:00 +10GMT Sat 07 Dec, 2013

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/us/

Analysis Summary
----------------

BGP routing table entries examined: 466915
Prefixes after maximum aggregation: 188585
Deaggregation factor: 2.48
Unique aggregates announced to Internet: 234784
Total ASes present in the Internet Routing Table: 45494
Prefixes per ASN: 10.26
Origin-only ASes present in the Internet Routing Table: 35433
Origin ASes announcing only one prefix: 16270
Transit ASes present in the Internet Routing Table: 5811
Transit-only ASes present in the Internet Routing Table: 154
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 37
Max AS path prepend of ASN ( 55644) 31
Prefixes from unregistered ASNs in the Routing Table: 997
Unregistered ASNs in the Routing Table: 263
Number of 32-bit ASNs allocated by the RIRs: 5465
Number of 32-bit ASNs visible in the Routing Table: 4250
Prefixes from 32-bit ASNs in the Routing Table: 13211
Number of bogon 32-bit ASNs visible in the Routing Table: 1
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 1332
Number of addresses announced to Internet: 2654598752
Equivalent to 158 /8s, 57 /16s and 246 /24s
Percentage of available address space announced: 71.7
Percentage of allocated address space announced: 71.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 95.3
Total number of prefixes smaller than registry allocations: 162919

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 108082
Total APNIC prefixes after maximum aggregation: 33560
APNIC Deaggregation factor: 3.22
Prefixes being announced from the APNIC address blocks: 110313
Unique aggregates announced from the APNIC address blocks: 47699
APNIC Region origin ASes present in the Internet Routing Table: 4841
APNIC Prefixes per ASN: 22.79
APNIC Region origin ASes announcing only one prefix: 1223
APNIC Region transit ASes present in the Internet Routing Table: 816
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 37
Number of APNIC region 32-bit ASNs visible in the Routing Table: 776
Number of APNIC addresses announced to Internet: 727041280
Equivalent to 43 /8s, 85 /16s and 197 /24s
Percentage of available APNIC address space announced: 85.0

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-63999, 131072-133631
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, 150/8, 153/8,
163/8, 171/8, 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: 161774
Total ARIN prefixes after maximum aggregation: 81305
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 162500
Unique aggregates announced from the ARIN address blocks: 75602
ARIN Region origin ASes present in the Internet Routing Table: 15874
ARIN Prefixes per ASN: 10.24
ARIN Region origin ASes announcing only one prefix: 6002
ARIN Region transit ASes present in the Internet Routing Table: 1611
Average ARIN Region AS path length visible: 3.5
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 42
Number of ARIN addresses announced to Internet: 1072465920
Equivalent to 63 /8s, 236 /16s and 136 /24s
Percentage of available ARIN address space announced: 56.7

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, 62464-63487, 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, 128/8,
129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8,
137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8,
146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8,
157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8,
165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8,
173/8, 174/8, 184/8, 192/8, 198/8, 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: 118887
Total RIPE prefixes after maximum aggregation: 61091
RIPE Deaggregation factor: 1.95
Prefixes being announced from the RIPE address blocks: 122662
Unique aggregates announced from the RIPE address blocks: 78985
RIPE Region origin ASes present in the Internet Routing Table: 17521
RIPE Prefixes per ASN: 7.00
RIPE Region origin ASes announcing only one prefix: 8282
RIPE Region transit ASes present in the Internet Routing Table: 2794
Average RIPE Region AS path length visible: 4.1
Max RIPE Region AS path length visible: 25
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2508
Number of RIPE addresses announced to Internet: 655987296
Equivalent to 39 /8s, 25 /16s and 146 /24s
Percentage of available RIPE address space announced: 95.4

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
59392-61439, 61952-62463, 196608-200191
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,
141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
193/8, 194/8, 195/8, 212/8, 213/8, 217/8,

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 52580
Total LACNIC prefixes after maximum aggregation: 9809
LACNIC Deaggregation factor: 5.36
Prefixes being announced from the LACNIC address blocks: 57786
Unique aggregates announced from the LACNIC address blocks: 27385
LACNIC Region origin ASes present in the Internet Routing Table: 2038
LACNIC Prefixes per ASN: 28.35
LACNIC Region origin ASes announcing only one prefix: 557
LACNIC Region transit ASes present in the Internet Routing Table: 383
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 916
Number of LACNIC addresses announced to Internet: 146149120
Equivalent to 8 /8s, 182 /16s and 15 /24s
Percentage of available LACNIC address space announced: 87.1

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 262144-263679 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
191/8, 200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 11682
Total AfriNIC prefixes after maximum aggregation: 2588
AfriNIC Deaggregation factor: 4.51
Prefixes being announced from the AfriNIC address blocks: 12322
Unique aggregates announced from the AfriNIC address blocks: 4061
AfriNIC Region origin ASes present in the Internet Routing Table: 689
AfriNIC Prefixes per ASN: 17.88
AfriNIC Region origin ASes announcing only one prefix: 206
AfriNIC Region transit ASes present in the Internet Routing Table: 136
Average AfriNIC Region AS path length visible: 4.0
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 8
Number of AfriNIC addresses announced to Internet: 48525568
Equivalent to 2 /8s, 228 /16s and 113 /24s
Percentage of available AfriNIC address space announced: 48.2

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
17974 2704 902 92 PT TELEKOMUNIKASI INDONESIA
4766 2162 11551 653 Korea Telecom (KIX)
7545 2095 319 109 TPG Internet Pty Ltd
4755 1778 391 189 TATA Communications formerly
9829 1538 1244 47 BSNL National Internet Backbo
9583 1355 107 562 Sify Limited
9498 1218 309 72 BHARTI Airtel Ltd.
7552 1167 1080 13 Vietel Corporation
24560 1098 382 166 Bharti Airtel Ltd., Telemedia
4808 1079 2020 308 CNCGROUP IP network: China169

Complete listing at http://thyme.rand.apnic.net/us/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3038 3688 53 BellSouth.net Inc.
22773 2299 2939 138 Cox Communications, Inc.
18566 2053 379 178 MegaPath Corporation
1785 2048 686 132 PaeTec Communications, Inc.
20115 1680 1656 596 Charter Communications
4323 1646 1114 418 Time Warner Telecom
701 1508 11144 779 MCI Communications Services,
30036 1381 311 581 Mediacom Communications Corp
7018 1334 17797 876 AT&T WorldNet Services
6983 1293 771 579 ITC^Deltacom

Complete listing at http://thyme.rand.apnic.net/us/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8402 1837 544 16 OJSC "Vimpelcom"
34984 1368 244 224 TELLCOM ILETISIM HIZMETLERI A
20940 1180 446 889 Akamai Technologies European
31148 1010 45 20 FreeNet ISP
13188 874 99 42 TOV "Bank-Inform"
6849 855 363 39 JSC UKRTELECOM,
8551 783 370 41 Bezeq International
6830 773 2328 426 UPC Distribution Services
12479 679 798 53 Uni2 Autonomous System
35228 547 246 16 Avatar Broadband Limited

Complete listing at http://thyme.rand.apnic.net/us/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3420 1829 94 NET Servicos de Comunicao S.A
10620 2693 436 200 Telmex Colombia S.A.
7303 1735 1161 230 Telecom Argentina Stet-France
18881 1709 908 20 Global Village Telecom
8151 1355 2852 418 UniNet S.A. de C.V.
11830 868 364 15 Instituto Costarricense de El
27947 823 94 90 Telconet S.A
6147 793 373 27 Telefonica Del Peru
7738 780 1498 36 Telecomunicacoes da Bahia S.A
3816 765 311 128 COLOMBIA TELECOMUNICACIONES S

Complete listing at http://thyme.rand.apnic.net/us/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
36998 1854 112 5 Sudanese Mobile Telephone (ZA
24863 872 338 26 LINKdotNET AS number
6713 554 633 26 Itissalat Al-MAGHRIB
8452 414 956 9 TEDATA
24835 297 144 9 RAYA Telecom - Egypt
3741 247 921 209 The Internet Solution
29571 228 21 13 Ci Telecom Autonomous system
36992 222 501 29 Etisalat MISR
15706 219 32 6 Sudatel Internet Exchange Aut
29975 192 668 21 Vodacom

Complete listing at http://thyme.rand.apnic.net/us/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3420 1829 94 NET Servicos de Comunicao S.A
6389 3038 3688 53 BellSouth.net Inc.
17974 2704 902 92 PT TELEKOMUNIKASI INDONESIA
10620 2693 436 200 Telmex Colombia S.A.
22773 2299 2939 138 Cox Communications, Inc.
4766 2162 11551 653 Korea Telecom (KIX)
7545 2095 319 109 TPG Internet Pty Ltd
18566 2053 379 178 MegaPath Corporation
1785 2048 686 132 PaeTec Communications, Inc.
36998 1854 112 5 Sudanese Mobile Telephone (ZA

Complete listing at http://thyme.rand.apnic.net/us/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
6389 3038 2985 BellSouth.net Inc.
17974 2704 2612 PT TELEKOMUNIKASI INDONESIA
10620 2693 2493 Telmex Colombia S.A.
22773 2299 2161 Cox Communications, Inc.
7545 2095 1986 TPG Internet Pty Ltd
1785 2048 1916 PaeTec Communications, Inc.
18566 2053 1875 MegaPath Corporation
36998 1854 1849 Sudanese Mobile Telephone (ZA
8402 1837 1821 OJSC "Vimpelcom"
18881 1709 1689 Global Village Telecom

Complete listing at http://thyme.rand.apnic.net/us/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
62828 UNALLOCATED 8.21.130.0/24 4323 Time Warner Telecom
62850 UNALLOCATED 8.25.147.0/24 3356 Level 3 Communicatio
62734 UNALLOCATED 8.31.128.0/24 3356 Level 3 Communicatio
62773 UNALLOCATED 8.35.180.0/22 3356 Level 3 Communicatio
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
62719 UNALLOCATED 12.27.130.0/24 4323 Time Warner Telecom
62861 UNALLOCATED 12.37.197.0/24 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

Complete listing at http://thyme.rand.apnic.net/us/data-badAS

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
23.90.128.0/18 27418 OUTOFWALL INC.
23.91.0.0/19 40676 Psychz Networks
23.91.4.0/24 40676 Psychz Networks
23.91.14.0/24 40676 Psychz Networks
23.91.32.0/19 36315 Servpac Inc.
23.91.80.0/20 21560 Capital Technology Services G
23.91.96.0/20 37958 ChinaCache Networks ASN
23.91.112.0/21 32475 MidPhase Inc.
23.91.120.0/21 36351 SoftLayer Technologies Inc.
23.91.160.0/19 36493 3757277 Canada Inc. (oa 295.c

Complete listing at http://thyme.rand.apnic.net/us/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 /8:16 /9:11 /10:31 /11:92 /12:253
/13:471 /14:922 /15:1619 /16:12782 /17:6697 /18:11084
/19:22864 /20:32740 /21:35371 /22:49534 /23:43532 /24:248768
/25:42 /26:32 /27:17 /28:18 /29:8 /30:2
/31:0 /32:9

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
18566 2008 2053 MegaPath Corporation
36998 1819 1854 Sudanese Mobile Telephone (ZA
6389 1700 3038 BellSouth.net Inc.
22773 1551 2299 Cox Communications, Inc.
8402 1547 1837 OJSC "Vimpelcom"
30036 1221 1381 Mediacom Communications Corp
11492 1183 1224 Cable One
1785 1088 2048 PaeTec Communications, Inc.
6983 1034 1293 ITC^Deltacom
22561 965 1240 Digital Teleport, Inc

Complete listing at http://thyme.rand.apnic.net/us/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:922 2:838 3:3 4:16 5:807 6:21
8:611 12:1874 13:3 14:866 15:11 16:3
17:19 18:19 20:25 23:614 24:1754 27:1699
31:1517 32:43 33:2 34:5 36:96 37:1930
38:913 39:5 40:181 41:3212 42:229 44:13
46:2057 47:10 49:698 50:858 52:12 54:44
55:5 56:4 57:26 58:1068 59:580 60:366
61:1468 62:1246 63:1974 64:4393 65:2330 66:4141
67:2110 68:1093 69:3291 70:906 71:504 72:2020
74:2572 75:324 76:293 77:1215 78:999 79:669
80:1280 81:1052 82:630 83:755 84:583 85:1255
86:382 87:1037 88:548 89:1571 90:154 91:5711
92:620 93:1610 94:2112 95:1494 96:513 97:349
98:1123 99:41 100:32 101:438 103:3758 105:530
106:143 107:227 108:518 109:1997 110:969 111:1120
112:578 113:800 114:732 115:1000 116:994 117:804
118:1218 119:1270 120:331 121:731 122:1780 123:1242
124:1347 125:1434 128:596 129:218 130:338 131:660
132:343 133:158 134:294 135:72 136:275 137:264
138:352 139:165 140:170 141:330 142:537 143:402
144:498 145:90 146:544 147:418 148:724 149:368
150:150 151:486 152:415 153:207 154:45 155:515
156:304 157:368 158:284 159:687 160:361 161:449
162:903 163:204 164:624 165:575 166:275 167:637
168:1037 169:120 170:1123 171:185 172:11 173:1623
174:664 175:523 176:1301 177:2506 178:1873 179:314
180:1594 181:886 182:1403 183:476 184:621 185:1100
186:2654 187:1442 188:1949 189:1253 190:7274 192:6997
193:5421 194:4030 195:3357 196:1337 197:1057 198:4692
199:5466 200:6045 201:2523 202:8791 203:8824 204:4467
205:2624 206:2802 207:2730 208:3954 209:3653 210:2941
211:1602 212:2174 213:1993 214:884 215:84 216:5405
217:1710 218:627 219:309 220:1263 221:587 222:330
223:512

End of report
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